update lpc11u cmsis to 3.20
This commit is contained in:
+13
-1
@@ -1,3 +1,16 @@
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History of updates to CMSIS_CORE_LPC11Uxx
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||||
===========================================
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18 July 2013
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------------
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CMSIS library project using ARM Cortex-M0 CMSIS files as
|
||||
supplied in ARM's CMSIS 3.20 March 2013 release, together
|
||||
with NXP's device specific files taken from old
|
||||
CMSISv2p00_LPC11Uxx project.
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||||
|
||||
Note files are built -Os for both Debug and Release
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||||
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||||
|
||||
History of updates to CMSISv2p00_LPC11Uxx
|
||||
=========================================
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||||
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||||
@@ -20,4 +33,3 @@ Cortex-M0 CMSIS files as supplied in ARM's CMSIS 2.0
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||||
December 2010 release, together with device/board
|
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specific files from NXP.
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||||
|
||||
Note files are built -Os for both Debug and Release
|
||||
+670
-670
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+64
-64
@@ -1,64 +1,64 @@
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/**************************************************************************//**
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||||
* @file system_LPC11Uxx.h
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* @brief CMSIS Cortex-M0 Device Peripheral Access Layer Header File
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||||
* for the NXP LPC11Uxx Device Series
|
||||
* @version V1.10
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||||
* @date 24. November 2010
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||||
*
|
||||
* @note
|
||||
* Copyright (C) 2009-2010 ARM Limited. All rights reserved.
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||||
*
|
||||
* @par
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||||
* ARM Limited (ARM) is supplying this software for use with Cortex-M
|
||||
* processor based microcontrollers. This file can be freely distributed
|
||||
* within development tools that are supporting such ARM based processors.
|
||||
*
|
||||
* @par
|
||||
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
*
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||||
******************************************************************************/
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||||
|
||||
|
||||
#ifndef __SYSTEM_LPC11Uxx_H
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#define __SYSTEM_LPC11Uxx_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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||||
#include <stdint.h>
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extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
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||||
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||||
/**
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* Initialize the system
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*
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||||
* @param none
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||||
* @return none
|
||||
*
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||||
* @brief Setup the microcontroller system.
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* Initialize the System and update the SystemCoreClock variable.
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*/
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extern void SystemInit (void);
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/**
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* Update SystemCoreClock variable
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*
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* @param none
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||||
* @return none
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||||
*
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* @brief Updates the SystemCoreClock with current core Clock
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||||
* retrieved from cpu registers.
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*/
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extern void SystemCoreClockUpdate (void);
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#ifdef __cplusplus
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}
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||||
#endif
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#endif /* __SYSTEM_LPC11Uxx_H */
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||||
/**************************************************************************//**
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||||
* @file system_LPC11Uxx.h
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* @brief CMSIS Cortex-M0 Device Peripheral Access Layer Header File
|
||||
* for the NXP LPC11Uxx Device Series
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||||
* @version V1.10
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||||
* @date 24. November 2010
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||||
*
|
||||
* @note
|
||||
* Copyright (C) 2009-2010 ARM Limited. All rights reserved.
|
||||
*
|
||||
* @par
|
||||
* ARM Limited (ARM) is supplying this software for use with Cortex-M
|
||||
* processor based microcontrollers. This file can be freely distributed
|
||||
* within development tools that are supporting such ARM based processors.
|
||||
*
|
||||
* @par
|
||||
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
*
|
||||
******************************************************************************/
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||||
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||||
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||||
#ifndef __SYSTEM_LPC11Uxx_H
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#define __SYSTEM_LPC11Uxx_H
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||||
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||||
#ifdef __cplusplus
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extern "C" {
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||||
#endif
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||||
|
||||
#include <stdint.h>
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||||
|
||||
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
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||||
|
||||
|
||||
/**
|
||||
* Initialize the system
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||||
*
|
||||
* @param none
|
||||
* @return none
|
||||
*
|
||||
* @brief Setup the microcontroller system.
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||||
* Initialize the System and update the SystemCoreClock variable.
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||||
*/
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||||
extern void SystemInit (void);
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||||
|
||||
/**
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||||
* Update SystemCoreClock variable
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*
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||||
* @param none
|
||||
* @return none
|
||||
*
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||||
* @brief Updates the SystemCoreClock with current core Clock
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||||
* retrieved from cpu registers.
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||||
*/
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||||
extern void SystemCoreClockUpdate (void);
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||||
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#ifdef __cplusplus
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||||
}
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||||
#endif
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||||
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#endif /* __SYSTEM_LPC11Uxx_H */
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||||
@@ -0,0 +1,32 @@
|
||||
<!-- liblinks.xml
|
||||
|
||||
LPCXpresso "Smart update wizard" script file
|
||||
When executed on a particular application project, will
|
||||
add appropriate links to the specified library project.
|
||||
|
||||
Note that this script assumes that the application project
|
||||
contains the standard 'Debug' and 'Release' build
|
||||
configurations.
|
||||
-->
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||||
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||||
<project name="" update="true">
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||||
<setting id="all.compiler.inc">
|
||||
<value>${workspace_loc:/CMSIS_CORE_LPC11Uxx/inc}</value>
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||||
</setting>
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||||
<setting id="all.compiler.def">
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||||
<value>__USE_CMSIS=CMSIS_CORE_LPC11Uxx</value>
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||||
</setting>
|
||||
<setting id="linker.libs">
|
||||
<value>CMSIS_CORE_LPC11Uxx</value>
|
||||
</setting>
|
||||
<setting id="linker.paths" buildType="Debug">
|
||||
<value>${workspace_loc:/CMSIS_CORE_LPC11Uxx/Debug}</value>
|
||||
</setting>
|
||||
<setting id="linker.paths" buildType="Release">
|
||||
<value>${workspace_loc:/CMSIS_CORE_LPC11Uxx/Release}</value>
|
||||
</setting>
|
||||
<requires msg="Library project `CMSIS_CORE_LPC11Uxx` not found">
|
||||
<value>CMSIS_CORE_LPC11Uxx</value>
|
||||
</requires>
|
||||
</project>
|
||||
|
||||
+451
-451
@@ -1,451 +1,451 @@
|
||||
/******************************************************************************
|
||||
* @file system_LPC11Uxx.c
|
||||
* @purpose CMSIS Cortex-M3 Device Peripheral Access Layer Source File
|
||||
* for the NXP LPC13xx Device Series
|
||||
* @version V1.10
|
||||
* @date 24. November 2010
|
||||
*
|
||||
* @note
|
||||
* Copyright (C) 2009-2010 ARM Limited. All rights reserved.
|
||||
*
|
||||
* @par
|
||||
* ARM Limited (ARM) is supplying this software for use with Cortex-M
|
||||
* processor based microcontrollers. This file can be freely distributed
|
||||
* within development tools that are supporting such ARM based processors.
|
||||
*
|
||||
* @par
|
||||
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
|
||||
#include <stdint.h>
|
||||
#include "LPC11Uxx.h"
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||||
|
||||
/*
|
||||
//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
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||||
*/
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||||
|
||||
/*--------------------- Clock Configuration ----------------------------------
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||||
//
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||||
// <e> Clock Configuration
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||||
// <h> System Oscillator Control Register (SYSOSCCTRL)
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||||
// <o1.0> BYPASS: System Oscillator Bypass Enable
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||||
// <i> If enabled then PLL input (sys_osc_clk) is fed
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||||
// <i> directly from XTALIN and XTALOUT pins.
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||||
// <o1.9> FREQRANGE: System Oscillator Frequency Range
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||||
// <i> Determines frequency range for Low-power oscillator.
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||||
// <0=> 1 - 20 MHz
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// <1=> 15 - 25 MHz
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||||
// </h>
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||||
//
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||||
// <h> Watchdog Oscillator Control Register (WDTOSCCTRL)
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||||
// <o2.0..4> DIVSEL: Select Divider for Fclkana
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// <i> wdt_osc_clk = Fclkana/ (2 × (1 + DIVSEL))
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// <0-31>
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||||
// <o2.5..8> FREQSEL: Select Watchdog Oscillator Analog Output Frequency (Fclkana)
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// <0=> Undefined
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// <1=> 0.5 MHz
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// <2=> 0.8 MHz
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// <3=> 1.1 MHz
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||||
// <4=> 1.4 MHz
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||||
// <5=> 1.6 MHz
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||||
// <6=> 1.8 MHz
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||||
// <7=> 2.0 MHz
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||||
// <8=> 2.2 MHz
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||||
// <9=> 2.4 MHz
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||||
// <10=> 2.6 MHz
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||||
// <11=> 2.7 MHz
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||||
// <12=> 2.9 MHz
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||||
// <13=> 3.1 MHz
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||||
// <14=> 3.2 MHz
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||||
// <15=> 3.4 MHz
|
||||
// </h>
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||||
//
|
||||
// <h> System PLL Control Register (SYSPLLCTRL)
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||||
// <i> F_clkout = M * F_clkin = F_CCO / (2 * P)
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||||
// <i> F_clkin must be in the range of 10 MHz to 25 MHz
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||||
// <i> F_CCO must be in the range of 156 MHz to 320 MHz
|
||||
// <o3.0..4> MSEL: Feedback Divider Selection
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||||
// <i> M = MSEL + 1
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||||
// <0-31>
|
||||
// <o3.5..6> PSEL: Post Divider Selection
|
||||
// <0=> P = 1
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||||
// <1=> P = 2
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||||
// <2=> P = 4
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||||
// <3=> P = 8
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||||
// </h>
|
||||
//
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||||
// <h> System PLL Clock Source Select Register (SYSPLLCLKSEL)
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||||
// <o4.0..1> SEL: System PLL Clock Source
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||||
// <0=> IRC Oscillator
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||||
// <1=> System Oscillator
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||||
// <2=> Reserved
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||||
// <3=> Reserved
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||||
// </h>
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||||
//
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||||
// <h> Main Clock Source Select Register (MAINCLKSEL)
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||||
// <o5.0..1> SEL: Clock Source for Main Clock
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||||
// <0=> IRC Oscillator
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||||
// <1=> Input Clock to System PLL
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||||
// <2=> WDT Oscillator
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||||
// <3=> System PLL Clock Out
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||||
// </h>
|
||||
//
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||||
// <h> System AHB Clock Divider Register (SYSAHBCLKDIV)
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||||
// <o6.0..7> DIV: System AHB Clock Divider
|
||||
// <i> Divides main clock to provide system clock to core, memories, and peripherals.
|
||||
// <i> 0 = is disabled
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||||
// <0-255>
|
||||
// </h>
|
||||
//
|
||||
// <h> USB PLL Control Register (USBPLLCTRL)
|
||||
// <i> F_clkout = M * F_clkin = F_CCO / (2 * P)
|
||||
// <i> F_clkin must be in the range of 10 MHz to 25 MHz
|
||||
// <i> F_CCO must be in the range of 156 MHz to 320 MHz
|
||||
// <o7.0..4> MSEL: Feedback Divider Selection
|
||||
// <i> M = MSEL + 1
|
||||
// <0-31>
|
||||
// <o7.5..6> PSEL: Post Divider Selection
|
||||
// <0=> P = 1
|
||||
// <1=> P = 2
|
||||
// <2=> P = 4
|
||||
// <3=> P = 8
|
||||
// </h>
|
||||
//
|
||||
// <h> USB PLL Clock Source Select Register (USBPLLCLKSEL)
|
||||
// <o8.0..1> SEL: USB PLL Clock Source
|
||||
// <i> USB PLL clock source must be switched to System Oscillator for correct USB operation
|
||||
// <0=> IRC Oscillator
|
||||
// <1=> System Oscillator
|
||||
// <2=> Reserved
|
||||
// <3=> Reserved
|
||||
// </h>
|
||||
//
|
||||
// <h> USB Clock Source Select Register (USBCLKSEL)
|
||||
// <o9.0..1> SEL: System PLL Clock Source
|
||||
// <0=> USB PLL out
|
||||
// <1=> Main clock
|
||||
// <2=> Reserved
|
||||
// <3=> Reserved
|
||||
// </h>
|
||||
//
|
||||
// <h> USB Clock Divider Register (USBCLKDIV)
|
||||
// <o10.0..7> DIV: USB Clock Divider
|
||||
// <i> Divides USB clock to 48 MHz.
|
||||
// <i> 0 = is disabled
|
||||
// <0-255>
|
||||
// </h>
|
||||
// </e>
|
||||
*/
|
||||
#define CLOCK_SETUP 1
|
||||
#define SYSOSCCTRL_Val 0x00000000 // Reset: 0x000
|
||||
#define WDTOSCCTRL_Val 0x00000000 // Reset: 0x000
|
||||
#define SYSPLLCTRL_Val 0x00000023 // Reset: 0x000
|
||||
#define SYSPLLCLKSEL_Val 0x00000001 // Reset: 0x000
|
||||
#define MAINCLKSEL_Val 0x00000003 // Reset: 0x000
|
||||
#define SYSAHBCLKDIV_Val 0x00000001 // Reset: 0x001
|
||||
#define USBPLLCTRL_Val 0x00000023 // Reset: 0x000
|
||||
#define USBPLLCLKSEL_Val 0x00000001 // Reset: 0x000
|
||||
#define USBCLKSEL_Val 0x00000000 // Reset: 0x000
|
||||
#define USBCLKDIV_Val 0x00000001 // Reset: 0x001
|
||||
|
||||
/*
|
||||
//-------- <<< end of configuration section >>> ------------------------------
|
||||
*/
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Check the register settings
|
||||
*----------------------------------------------------------------------------*/
|
||||
#define CHECK_RANGE(val, min, max) ((val < min) || (val > max))
|
||||
#define CHECK_RSVD(val, mask) (val & mask)
|
||||
|
||||
/* Clock Configuration -------------------------------------------------------*/
|
||||
#if (CHECK_RSVD((SYSOSCCTRL_Val), ~0x00000003))
|
||||
#error "SYSOSCCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((WDTOSCCTRL_Val), ~0x000001FF))
|
||||
#error "WDTOSCCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((SYSPLLCLKSEL_Val), 0, 2))
|
||||
#error "SYSPLLCLKSEL: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((SYSPLLCTRL_Val), ~0x000001FF))
|
||||
#error "SYSPLLCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((MAINCLKSEL_Val), ~0x00000003))
|
||||
#error "MAINCLKSEL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((SYSAHBCLKDIV_Val), 0, 255))
|
||||
#error "SYSAHBCLKDIV: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((USBPLLCLKSEL_Val), 0, 1))
|
||||
#error "USBPLLCLKSEL: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((USBPLLCTRL_Val), ~0x000001FF))
|
||||
#error "USBPLLCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((USBCLKSEL_Val), 0, 1))
|
||||
#error "USBCLKSEL: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((USBCLKDIV_Val), 0, 255))
|
||||
#error "USBCLKDIV: Value out of range!"
|
||||
#endif
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
DEFINES
|
||||
*----------------------------------------------------------------------------*/
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Define clocks
|
||||
*----------------------------------------------------------------------------*/
|
||||
#define __XTAL (12000000UL) /* Oscillator frequency */
|
||||
#define __SYS_OSC_CLK ( __XTAL) /* Main oscillator frequency */
|
||||
#define __IRC_OSC_CLK (12000000UL) /* Internal RC oscillator frequency */
|
||||
|
||||
|
||||
#define __FREQSEL ((WDTOSCCTRL_Val >> 5) & 0x0F)
|
||||
#define __DIVSEL (((WDTOSCCTRL_Val & 0x1F) << 1) + 2)
|
||||
|
||||
#if (CLOCK_SETUP) /* Clock Setup */
|
||||
#if (__FREQSEL == 0)
|
||||
#define __WDT_OSC_CLK ( 0) /* undefined */
|
||||
#elif (__FREQSEL == 1)
|
||||
#define __WDT_OSC_CLK ( 500000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 2)
|
||||
#define __WDT_OSC_CLK ( 800000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 3)
|
||||
#define __WDT_OSC_CLK (1100000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 4)
|
||||
#define __WDT_OSC_CLK (1400000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 5)
|
||||
#define __WDT_OSC_CLK (1600000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 6)
|
||||
#define __WDT_OSC_CLK (1800000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 7)
|
||||
#define __WDT_OSC_CLK (2000000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 8)
|
||||
#define __WDT_OSC_CLK (2200000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 9)
|
||||
#define __WDT_OSC_CLK (2400000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 10)
|
||||
#define __WDT_OSC_CLK (2600000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 11)
|
||||
#define __WDT_OSC_CLK (2700000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 12)
|
||||
#define __WDT_OSC_CLK (2900000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 13)
|
||||
#define __WDT_OSC_CLK (3100000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 14)
|
||||
#define __WDT_OSC_CLK (3200000 / __DIVSEL)
|
||||
#else
|
||||
#define __WDT_OSC_CLK (3400000 / __DIVSEL)
|
||||
#endif
|
||||
|
||||
/* sys_pllclkin calculation */
|
||||
#if ((SYSPLLCLKSEL_Val & 0x03) == 0)
|
||||
#define __SYS_PLLCLKIN (__IRC_OSC_CLK)
|
||||
#elif ((SYSPLLCLKSEL_Val & 0x03) == 1)
|
||||
#define __SYS_PLLCLKIN (__SYS_OSC_CLK)
|
||||
#else
|
||||
#define __SYS_PLLCLKIN (0)
|
||||
#endif
|
||||
|
||||
#define __SYS_PLLCLKOUT (__SYS_PLLCLKIN * ((SYSPLLCTRL_Val & 0x01F) + 1))
|
||||
|
||||
/* main clock calculation */
|
||||
#if ((MAINCLKSEL_Val & 0x03) == 0)
|
||||
#define __MAIN_CLOCK (__IRC_OSC_CLK)
|
||||
#elif ((MAINCLKSEL_Val & 0x03) == 1)
|
||||
#define __MAIN_CLOCK (__SYS_PLLCLKIN)
|
||||
#elif ((MAINCLKSEL_Val & 0x03) == 2)
|
||||
#if (__FREQSEL == 0)
|
||||
#error "MAINCLKSEL: WDT Oscillator selected but FREQSEL is undefined!"
|
||||
#else
|
||||
#define __MAIN_CLOCK (__WDT_OSC_CLK)
|
||||
#endif
|
||||
#elif ((MAINCLKSEL_Val & 0x03) == 3)
|
||||
#define __MAIN_CLOCK (__SYS_PLLCLKOUT)
|
||||
#else
|
||||
#define __MAIN_CLOCK (0)
|
||||
#endif
|
||||
|
||||
#define __SYSTEM_CLOCK (__MAIN_CLOCK / SYSAHBCLKDIV_Val)
|
||||
|
||||
#else
|
||||
#define __SYSTEM_CLOCK (__IRC_OSC_CLK)
|
||||
#endif // CLOCK_SETUP
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Clock Variable definitions
|
||||
*----------------------------------------------------------------------------*/
|
||||
uint32_t SystemCoreClock = __SYSTEM_CLOCK;/*!< System Clock Frequency (Core Clock)*/
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Clock functions
|
||||
*----------------------------------------------------------------------------*/
|
||||
void SystemCoreClockUpdate (void) /* Get Core Clock Frequency */
|
||||
{
|
||||
uint32_t wdt_osc = 0;
|
||||
|
||||
/* Determine clock frequency according to clock register values */
|
||||
switch ((LPC_SYSCON->WDTOSCCTRL >> 5) & 0x0F) {
|
||||
case 0: wdt_osc = 0; break;
|
||||
case 1: wdt_osc = 500000; break;
|
||||
case 2: wdt_osc = 800000; break;
|
||||
case 3: wdt_osc = 1100000; break;
|
||||
case 4: wdt_osc = 1400000; break;
|
||||
case 5: wdt_osc = 1600000; break;
|
||||
case 6: wdt_osc = 1800000; break;
|
||||
case 7: wdt_osc = 2000000; break;
|
||||
case 8: wdt_osc = 2200000; break;
|
||||
case 9: wdt_osc = 2400000; break;
|
||||
case 10: wdt_osc = 2600000; break;
|
||||
case 11: wdt_osc = 2700000; break;
|
||||
case 12: wdt_osc = 2900000; break;
|
||||
case 13: wdt_osc = 3100000; break;
|
||||
case 14: wdt_osc = 3200000; break;
|
||||
case 15: wdt_osc = 3400000; break;
|
||||
}
|
||||
wdt_osc /= ((LPC_SYSCON->WDTOSCCTRL & 0x1F) << 1) + 2;
|
||||
|
||||
switch (LPC_SYSCON->MAINCLKSEL & 0x03) {
|
||||
case 0: /* Internal RC oscillator */
|
||||
SystemCoreClock = __IRC_OSC_CLK;
|
||||
break;
|
||||
case 1: /* Input Clock to System PLL */
|
||||
switch (LPC_SYSCON->SYSPLLCLKSEL & 0x03) {
|
||||
case 0: /* Internal RC oscillator */
|
||||
SystemCoreClock = __IRC_OSC_CLK;
|
||||
break;
|
||||
case 1: /* System oscillator */
|
||||
SystemCoreClock = __SYS_OSC_CLK;
|
||||
break;
|
||||
case 2: /* Reserved */
|
||||
case 3: /* Reserved */
|
||||
SystemCoreClock = 0;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case 2: /* WDT Oscillator */
|
||||
SystemCoreClock = wdt_osc;
|
||||
break;
|
||||
case 3: /* System PLL Clock Out */
|
||||
switch (LPC_SYSCON->SYSPLLCLKSEL & 0x03) {
|
||||
case 0: /* Internal RC oscillator */
|
||||
if (LPC_SYSCON->SYSPLLCTRL & 0x180) {
|
||||
SystemCoreClock = __IRC_OSC_CLK;
|
||||
} else {
|
||||
SystemCoreClock = __IRC_OSC_CLK * ((LPC_SYSCON->SYSPLLCTRL & 0x01F) + 1);
|
||||
}
|
||||
break;
|
||||
case 1: /* System oscillator */
|
||||
if (LPC_SYSCON->SYSPLLCTRL & 0x180) {
|
||||
SystemCoreClock = __SYS_OSC_CLK;
|
||||
} else {
|
||||
SystemCoreClock = __SYS_OSC_CLK * ((LPC_SYSCON->SYSPLLCTRL & 0x01F) + 1);
|
||||
}
|
||||
break;
|
||||
case 2: /* Reserved */
|
||||
case 3: /* Reserved */
|
||||
SystemCoreClock = 0;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
SystemCoreClock /= LPC_SYSCON->SYSAHBCLKDIV;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize the system
|
||||
*
|
||||
* @param none
|
||||
* @return none
|
||||
*
|
||||
* @brief Setup the microcontroller system.
|
||||
* Initialize the System.
|
||||
*/
|
||||
void SystemInit (void) {
|
||||
volatile uint32_t i;
|
||||
|
||||
#if (CLOCK_SETUP) /* Clock Setup */
|
||||
|
||||
#if ((SYSPLLCLKSEL_Val & 0x03) == 1)
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 5); /* Power-up System Osc */
|
||||
LPC_SYSCON->SYSOSCCTRL = SYSOSCCTRL_Val;
|
||||
for (i = 0; i < 200; i++) __NOP();
|
||||
#endif
|
||||
|
||||
LPC_SYSCON->SYSPLLCLKSEL = SYSPLLCLKSEL_Val; /* Select PLL Input */
|
||||
LPC_SYSCON->SYSPLLCLKUEN = 0x01; /* Update Clock Source */
|
||||
LPC_SYSCON->SYSPLLCLKUEN = 0x00; /* Toggle Update Register */
|
||||
LPC_SYSCON->SYSPLLCLKUEN = 0x01;
|
||||
while (!(LPC_SYSCON->SYSPLLCLKUEN & 0x01)); /* Wait Until Updated */
|
||||
#if ((MAINCLKSEL_Val & 0x03) == 3) /* Main Clock is PLL Out */
|
||||
LPC_SYSCON->SYSPLLCTRL = SYSPLLCTRL_Val;
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 7); /* Power-up SYSPLL */
|
||||
while (!(LPC_SYSCON->SYSPLLSTAT & 0x01)); /* Wait Until PLL Locked */
|
||||
#endif
|
||||
|
||||
#if (((MAINCLKSEL_Val & 0x03) == 2) )
|
||||
LPC_SYSCON->WDTOSCCTRL = WDTOSCCTRL_Val;
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 6); /* Power-up WDT Clock */
|
||||
for (i = 0; i < 200; i++) __NOP();
|
||||
#endif
|
||||
|
||||
LPC_SYSCON->MAINCLKSEL = MAINCLKSEL_Val; /* Select PLL Clock Output */
|
||||
LPC_SYSCON->MAINCLKUEN = 0x01; /* Update MCLK Clock Source */
|
||||
LPC_SYSCON->MAINCLKUEN = 0x00; /* Toggle Update Register */
|
||||
LPC_SYSCON->MAINCLKUEN = 0x01;
|
||||
while (!(LPC_SYSCON->MAINCLKUEN & 0x01)); /* Wait Until Updated */
|
||||
|
||||
LPC_SYSCON->SYSAHBCLKDIV = SYSAHBCLKDIV_Val;
|
||||
|
||||
#if ((USBCLKDIV_Val & 0x1FF) != 0) /* USB clock is used */
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 10); /* Power-up USB PHY */
|
||||
|
||||
#if ((USBCLKSEL_Val & 0x003) == 0) /* USB clock is USB PLL out */
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 8); /* Power-up USB PLL */
|
||||
LPC_SYSCON->USBPLLCLKSEL = USBPLLCLKSEL_Val; /* Select PLL Input */
|
||||
LPC_SYSCON->USBPLLCLKUEN = 0x01; /* Update Clock Source */
|
||||
LPC_SYSCON->USBPLLCLKUEN = 0x00; /* Toggle Update Register */
|
||||
LPC_SYSCON->USBPLLCLKUEN = 0x01;
|
||||
while (!(LPC_SYSCON->USBPLLCLKUEN & 0x01)); /* Wait Until Updated */
|
||||
LPC_SYSCON->USBPLLCTRL = USBPLLCTRL_Val;
|
||||
while (!(LPC_SYSCON->USBPLLSTAT & 0x01)); /* Wait Until PLL Locked */
|
||||
LPC_SYSCON->USBCLKSEL = 0x00; /* Select USB PLL */
|
||||
#endif
|
||||
|
||||
LPC_SYSCON->USBCLKSEL = USBCLKSEL_Val; /* Select USB Clock */
|
||||
LPC_SYSCON->USBCLKDIV = USBCLKDIV_Val; /* Set USB clock divider */
|
||||
|
||||
#else /* USB clock is not used */
|
||||
LPC_SYSCON->PDRUNCFG |= (1 << 10); /* Power-down USB PHY */
|
||||
LPC_SYSCON->PDRUNCFG |= (1 << 8); /* Power-down USB PLL */
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
/* System clock to the IOCON needs to be enabled or
|
||||
most of the I/O related peripherals won't work. */
|
||||
LPC_SYSCON->SYSAHBCLKCTRL |= (1<<16);
|
||||
|
||||
}
|
||||
/******************************************************************************
|
||||
* @file system_LPC11Uxx.c
|
||||
* @purpose CMSIS Cortex-M3 Device Peripheral Access Layer Source File
|
||||
* for the NXP LPC13xx Device Series
|
||||
* @version V1.10
|
||||
* @date 24. November 2010
|
||||
*
|
||||
* @note
|
||||
* Copyright (C) 2009-2010 ARM Limited. All rights reserved.
|
||||
*
|
||||
* @par
|
||||
* ARM Limited (ARM) is supplying this software for use with Cortex-M
|
||||
* processor based microcontrollers. This file can be freely distributed
|
||||
* within development tools that are supporting such ARM based processors.
|
||||
*
|
||||
* @par
|
||||
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
|
||||
#include <stdint.h>
|
||||
#include "LPC11Uxx.h"
|
||||
|
||||
/*
|
||||
//-------- <<< Use Configuration Wizard in Context Menu >>> ------------------
|
||||
*/
|
||||
|
||||
/*--------------------- Clock Configuration ----------------------------------
|
||||
//
|
||||
// <e> Clock Configuration
|
||||
// <h> System Oscillator Control Register (SYSOSCCTRL)
|
||||
// <o1.0> BYPASS: System Oscillator Bypass Enable
|
||||
// <i> If enabled then PLL input (sys_osc_clk) is fed
|
||||
// <i> directly from XTALIN and XTALOUT pins.
|
||||
// <o1.9> FREQRANGE: System Oscillator Frequency Range
|
||||
// <i> Determines frequency range for Low-power oscillator.
|
||||
// <0=> 1 - 20 MHz
|
||||
// <1=> 15 - 25 MHz
|
||||
// </h>
|
||||
//
|
||||
// <h> Watchdog Oscillator Control Register (WDTOSCCTRL)
|
||||
// <o2.0..4> DIVSEL: Select Divider for Fclkana
|
||||
// <i> wdt_osc_clk = Fclkana/ (2 × (1 + DIVSEL))
|
||||
// <0-31>
|
||||
// <o2.5..8> FREQSEL: Select Watchdog Oscillator Analog Output Frequency (Fclkana)
|
||||
// <0=> Undefined
|
||||
// <1=> 0.5 MHz
|
||||
// <2=> 0.8 MHz
|
||||
// <3=> 1.1 MHz
|
||||
// <4=> 1.4 MHz
|
||||
// <5=> 1.6 MHz
|
||||
// <6=> 1.8 MHz
|
||||
// <7=> 2.0 MHz
|
||||
// <8=> 2.2 MHz
|
||||
// <9=> 2.4 MHz
|
||||
// <10=> 2.6 MHz
|
||||
// <11=> 2.7 MHz
|
||||
// <12=> 2.9 MHz
|
||||
// <13=> 3.1 MHz
|
||||
// <14=> 3.2 MHz
|
||||
// <15=> 3.4 MHz
|
||||
// </h>
|
||||
//
|
||||
// <h> System PLL Control Register (SYSPLLCTRL)
|
||||
// <i> F_clkout = M * F_clkin = F_CCO / (2 * P)
|
||||
// <i> F_clkin must be in the range of 10 MHz to 25 MHz
|
||||
// <i> F_CCO must be in the range of 156 MHz to 320 MHz
|
||||
// <o3.0..4> MSEL: Feedback Divider Selection
|
||||
// <i> M = MSEL + 1
|
||||
// <0-31>
|
||||
// <o3.5..6> PSEL: Post Divider Selection
|
||||
// <0=> P = 1
|
||||
// <1=> P = 2
|
||||
// <2=> P = 4
|
||||
// <3=> P = 8
|
||||
// </h>
|
||||
//
|
||||
// <h> System PLL Clock Source Select Register (SYSPLLCLKSEL)
|
||||
// <o4.0..1> SEL: System PLL Clock Source
|
||||
// <0=> IRC Oscillator
|
||||
// <1=> System Oscillator
|
||||
// <2=> Reserved
|
||||
// <3=> Reserved
|
||||
// </h>
|
||||
//
|
||||
// <h> Main Clock Source Select Register (MAINCLKSEL)
|
||||
// <o5.0..1> SEL: Clock Source for Main Clock
|
||||
// <0=> IRC Oscillator
|
||||
// <1=> Input Clock to System PLL
|
||||
// <2=> WDT Oscillator
|
||||
// <3=> System PLL Clock Out
|
||||
// </h>
|
||||
//
|
||||
// <h> System AHB Clock Divider Register (SYSAHBCLKDIV)
|
||||
// <o6.0..7> DIV: System AHB Clock Divider
|
||||
// <i> Divides main clock to provide system clock to core, memories, and peripherals.
|
||||
// <i> 0 = is disabled
|
||||
// <0-255>
|
||||
// </h>
|
||||
//
|
||||
// <h> USB PLL Control Register (USBPLLCTRL)
|
||||
// <i> F_clkout = M * F_clkin = F_CCO / (2 * P)
|
||||
// <i> F_clkin must be in the range of 10 MHz to 25 MHz
|
||||
// <i> F_CCO must be in the range of 156 MHz to 320 MHz
|
||||
// <o7.0..4> MSEL: Feedback Divider Selection
|
||||
// <i> M = MSEL + 1
|
||||
// <0-31>
|
||||
// <o7.5..6> PSEL: Post Divider Selection
|
||||
// <0=> P = 1
|
||||
// <1=> P = 2
|
||||
// <2=> P = 4
|
||||
// <3=> P = 8
|
||||
// </h>
|
||||
//
|
||||
// <h> USB PLL Clock Source Select Register (USBPLLCLKSEL)
|
||||
// <o8.0..1> SEL: USB PLL Clock Source
|
||||
// <i> USB PLL clock source must be switched to System Oscillator for correct USB operation
|
||||
// <0=> IRC Oscillator
|
||||
// <1=> System Oscillator
|
||||
// <2=> Reserved
|
||||
// <3=> Reserved
|
||||
// </h>
|
||||
//
|
||||
// <h> USB Clock Source Select Register (USBCLKSEL)
|
||||
// <o9.0..1> SEL: System PLL Clock Source
|
||||
// <0=> USB PLL out
|
||||
// <1=> Main clock
|
||||
// <2=> Reserved
|
||||
// <3=> Reserved
|
||||
// </h>
|
||||
//
|
||||
// <h> USB Clock Divider Register (USBCLKDIV)
|
||||
// <o10.0..7> DIV: USB Clock Divider
|
||||
// <i> Divides USB clock to 48 MHz.
|
||||
// <i> 0 = is disabled
|
||||
// <0-255>
|
||||
// </h>
|
||||
// </e>
|
||||
*/
|
||||
#define CLOCK_SETUP 1
|
||||
#define SYSOSCCTRL_Val 0x00000000 // Reset: 0x000
|
||||
#define WDTOSCCTRL_Val 0x00000000 // Reset: 0x000
|
||||
#define SYSPLLCTRL_Val 0x00000023 // Reset: 0x000
|
||||
#define SYSPLLCLKSEL_Val 0x00000001 // Reset: 0x000
|
||||
#define MAINCLKSEL_Val 0x00000003 // Reset: 0x000
|
||||
#define SYSAHBCLKDIV_Val 0x00000001 // Reset: 0x001
|
||||
#define USBPLLCTRL_Val 0x00000023 // Reset: 0x000
|
||||
#define USBPLLCLKSEL_Val 0x00000001 // Reset: 0x000
|
||||
#define USBCLKSEL_Val 0x00000000 // Reset: 0x000
|
||||
#define USBCLKDIV_Val 0x00000001 // Reset: 0x001
|
||||
|
||||
/*
|
||||
//-------- <<< end of configuration section >>> ------------------------------
|
||||
*/
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Check the register settings
|
||||
*----------------------------------------------------------------------------*/
|
||||
#define CHECK_RANGE(val, min, max) ((val < min) || (val > max))
|
||||
#define CHECK_RSVD(val, mask) (val & mask)
|
||||
|
||||
/* Clock Configuration -------------------------------------------------------*/
|
||||
#if (CHECK_RSVD((SYSOSCCTRL_Val), ~0x00000003))
|
||||
#error "SYSOSCCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((WDTOSCCTRL_Val), ~0x000001FF))
|
||||
#error "WDTOSCCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((SYSPLLCLKSEL_Val), 0, 2))
|
||||
#error "SYSPLLCLKSEL: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((SYSPLLCTRL_Val), ~0x000001FF))
|
||||
#error "SYSPLLCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((MAINCLKSEL_Val), ~0x00000003))
|
||||
#error "MAINCLKSEL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((SYSAHBCLKDIV_Val), 0, 255))
|
||||
#error "SYSAHBCLKDIV: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((USBPLLCLKSEL_Val), 0, 1))
|
||||
#error "USBPLLCLKSEL: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RSVD((USBPLLCTRL_Val), ~0x000001FF))
|
||||
#error "USBPLLCTRL: Invalid values of reserved bits!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((USBCLKSEL_Val), 0, 1))
|
||||
#error "USBCLKSEL: Value out of range!"
|
||||
#endif
|
||||
|
||||
#if (CHECK_RANGE((USBCLKDIV_Val), 0, 255))
|
||||
#error "USBCLKDIV: Value out of range!"
|
||||
#endif
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
DEFINES
|
||||
*----------------------------------------------------------------------------*/
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Define clocks
|
||||
*----------------------------------------------------------------------------*/
|
||||
#define __XTAL (12000000UL) /* Oscillator frequency */
|
||||
#define __SYS_OSC_CLK ( __XTAL) /* Main oscillator frequency */
|
||||
#define __IRC_OSC_CLK (12000000UL) /* Internal RC oscillator frequency */
|
||||
|
||||
|
||||
#define __FREQSEL ((WDTOSCCTRL_Val >> 5) & 0x0F)
|
||||
#define __DIVSEL (((WDTOSCCTRL_Val & 0x1F) << 1) + 2)
|
||||
|
||||
#if (CLOCK_SETUP) /* Clock Setup */
|
||||
#if (__FREQSEL == 0)
|
||||
#define __WDT_OSC_CLK ( 0) /* undefined */
|
||||
#elif (__FREQSEL == 1)
|
||||
#define __WDT_OSC_CLK ( 500000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 2)
|
||||
#define __WDT_OSC_CLK ( 800000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 3)
|
||||
#define __WDT_OSC_CLK (1100000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 4)
|
||||
#define __WDT_OSC_CLK (1400000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 5)
|
||||
#define __WDT_OSC_CLK (1600000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 6)
|
||||
#define __WDT_OSC_CLK (1800000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 7)
|
||||
#define __WDT_OSC_CLK (2000000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 8)
|
||||
#define __WDT_OSC_CLK (2200000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 9)
|
||||
#define __WDT_OSC_CLK (2400000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 10)
|
||||
#define __WDT_OSC_CLK (2600000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 11)
|
||||
#define __WDT_OSC_CLK (2700000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 12)
|
||||
#define __WDT_OSC_CLK (2900000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 13)
|
||||
#define __WDT_OSC_CLK (3100000 / __DIVSEL)
|
||||
#elif (__FREQSEL == 14)
|
||||
#define __WDT_OSC_CLK (3200000 / __DIVSEL)
|
||||
#else
|
||||
#define __WDT_OSC_CLK (3400000 / __DIVSEL)
|
||||
#endif
|
||||
|
||||
/* sys_pllclkin calculation */
|
||||
#if ((SYSPLLCLKSEL_Val & 0x03) == 0)
|
||||
#define __SYS_PLLCLKIN (__IRC_OSC_CLK)
|
||||
#elif ((SYSPLLCLKSEL_Val & 0x03) == 1)
|
||||
#define __SYS_PLLCLKIN (__SYS_OSC_CLK)
|
||||
#else
|
||||
#define __SYS_PLLCLKIN (0)
|
||||
#endif
|
||||
|
||||
#define __SYS_PLLCLKOUT (__SYS_PLLCLKIN * ((SYSPLLCTRL_Val & 0x01F) + 1))
|
||||
|
||||
/* main clock calculation */
|
||||
#if ((MAINCLKSEL_Val & 0x03) == 0)
|
||||
#define __MAIN_CLOCK (__IRC_OSC_CLK)
|
||||
#elif ((MAINCLKSEL_Val & 0x03) == 1)
|
||||
#define __MAIN_CLOCK (__SYS_PLLCLKIN)
|
||||
#elif ((MAINCLKSEL_Val & 0x03) == 2)
|
||||
#if (__FREQSEL == 0)
|
||||
#error "MAINCLKSEL: WDT Oscillator selected but FREQSEL is undefined!"
|
||||
#else
|
||||
#define __MAIN_CLOCK (__WDT_OSC_CLK)
|
||||
#endif
|
||||
#elif ((MAINCLKSEL_Val & 0x03) == 3)
|
||||
#define __MAIN_CLOCK (__SYS_PLLCLKOUT)
|
||||
#else
|
||||
#define __MAIN_CLOCK (0)
|
||||
#endif
|
||||
|
||||
#define __SYSTEM_CLOCK (__MAIN_CLOCK / SYSAHBCLKDIV_Val)
|
||||
|
||||
#else
|
||||
#define __SYSTEM_CLOCK (__IRC_OSC_CLK)
|
||||
#endif // CLOCK_SETUP
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Clock Variable definitions
|
||||
*----------------------------------------------------------------------------*/
|
||||
uint32_t SystemCoreClock = __SYSTEM_CLOCK;/*!< System Clock Frequency (Core Clock)*/
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------
|
||||
Clock functions
|
||||
*----------------------------------------------------------------------------*/
|
||||
void SystemCoreClockUpdate (void) /* Get Core Clock Frequency */
|
||||
{
|
||||
uint32_t wdt_osc = 0;
|
||||
|
||||
/* Determine clock frequency according to clock register values */
|
||||
switch ((LPC_SYSCON->WDTOSCCTRL >> 5) & 0x0F) {
|
||||
case 0: wdt_osc = 0; break;
|
||||
case 1: wdt_osc = 500000; break;
|
||||
case 2: wdt_osc = 800000; break;
|
||||
case 3: wdt_osc = 1100000; break;
|
||||
case 4: wdt_osc = 1400000; break;
|
||||
case 5: wdt_osc = 1600000; break;
|
||||
case 6: wdt_osc = 1800000; break;
|
||||
case 7: wdt_osc = 2000000; break;
|
||||
case 8: wdt_osc = 2200000; break;
|
||||
case 9: wdt_osc = 2400000; break;
|
||||
case 10: wdt_osc = 2600000; break;
|
||||
case 11: wdt_osc = 2700000; break;
|
||||
case 12: wdt_osc = 2900000; break;
|
||||
case 13: wdt_osc = 3100000; break;
|
||||
case 14: wdt_osc = 3200000; break;
|
||||
case 15: wdt_osc = 3400000; break;
|
||||
}
|
||||
wdt_osc /= ((LPC_SYSCON->WDTOSCCTRL & 0x1F) << 1) + 2;
|
||||
|
||||
switch (LPC_SYSCON->MAINCLKSEL & 0x03) {
|
||||
case 0: /* Internal RC oscillator */
|
||||
SystemCoreClock = __IRC_OSC_CLK;
|
||||
break;
|
||||
case 1: /* Input Clock to System PLL */
|
||||
switch (LPC_SYSCON->SYSPLLCLKSEL & 0x03) {
|
||||
case 0: /* Internal RC oscillator */
|
||||
SystemCoreClock = __IRC_OSC_CLK;
|
||||
break;
|
||||
case 1: /* System oscillator */
|
||||
SystemCoreClock = __SYS_OSC_CLK;
|
||||
break;
|
||||
case 2: /* Reserved */
|
||||
case 3: /* Reserved */
|
||||
SystemCoreClock = 0;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
case 2: /* WDT Oscillator */
|
||||
SystemCoreClock = wdt_osc;
|
||||
break;
|
||||
case 3: /* System PLL Clock Out */
|
||||
switch (LPC_SYSCON->SYSPLLCLKSEL & 0x03) {
|
||||
case 0: /* Internal RC oscillator */
|
||||
if (LPC_SYSCON->SYSPLLCTRL & 0x180) {
|
||||
SystemCoreClock = __IRC_OSC_CLK;
|
||||
} else {
|
||||
SystemCoreClock = __IRC_OSC_CLK * ((LPC_SYSCON->SYSPLLCTRL & 0x01F) + 1);
|
||||
}
|
||||
break;
|
||||
case 1: /* System oscillator */
|
||||
if (LPC_SYSCON->SYSPLLCTRL & 0x180) {
|
||||
SystemCoreClock = __SYS_OSC_CLK;
|
||||
} else {
|
||||
SystemCoreClock = __SYS_OSC_CLK * ((LPC_SYSCON->SYSPLLCTRL & 0x01F) + 1);
|
||||
}
|
||||
break;
|
||||
case 2: /* Reserved */
|
||||
case 3: /* Reserved */
|
||||
SystemCoreClock = 0;
|
||||
break;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
SystemCoreClock /= LPC_SYSCON->SYSAHBCLKDIV;
|
||||
|
||||
}
|
||||
|
||||
/**
|
||||
* Initialize the system
|
||||
*
|
||||
* @param none
|
||||
* @return none
|
||||
*
|
||||
* @brief Setup the microcontroller system.
|
||||
* Initialize the System.
|
||||
*/
|
||||
void SystemInit (void) {
|
||||
volatile uint32_t i;
|
||||
|
||||
#if (CLOCK_SETUP) /* Clock Setup */
|
||||
|
||||
#if ((SYSPLLCLKSEL_Val & 0x03) == 1)
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 5); /* Power-up System Osc */
|
||||
LPC_SYSCON->SYSOSCCTRL = SYSOSCCTRL_Val;
|
||||
for (i = 0; i < 200; i++) __NOP();
|
||||
#endif
|
||||
|
||||
LPC_SYSCON->SYSPLLCLKSEL = SYSPLLCLKSEL_Val; /* Select PLL Input */
|
||||
LPC_SYSCON->SYSPLLCLKUEN = 0x01; /* Update Clock Source */
|
||||
LPC_SYSCON->SYSPLLCLKUEN = 0x00; /* Toggle Update Register */
|
||||
LPC_SYSCON->SYSPLLCLKUEN = 0x01;
|
||||
while (!(LPC_SYSCON->SYSPLLCLKUEN & 0x01)); /* Wait Until Updated */
|
||||
#if ((MAINCLKSEL_Val & 0x03) == 3) /* Main Clock is PLL Out */
|
||||
LPC_SYSCON->SYSPLLCTRL = SYSPLLCTRL_Val;
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 7); /* Power-up SYSPLL */
|
||||
while (!(LPC_SYSCON->SYSPLLSTAT & 0x01)); /* Wait Until PLL Locked */
|
||||
#endif
|
||||
|
||||
#if (((MAINCLKSEL_Val & 0x03) == 2) )
|
||||
LPC_SYSCON->WDTOSCCTRL = WDTOSCCTRL_Val;
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 6); /* Power-up WDT Clock */
|
||||
for (i = 0; i < 200; i++) __NOP();
|
||||
#endif
|
||||
|
||||
LPC_SYSCON->MAINCLKSEL = MAINCLKSEL_Val; /* Select PLL Clock Output */
|
||||
LPC_SYSCON->MAINCLKUEN = 0x01; /* Update MCLK Clock Source */
|
||||
LPC_SYSCON->MAINCLKUEN = 0x00; /* Toggle Update Register */
|
||||
LPC_SYSCON->MAINCLKUEN = 0x01;
|
||||
while (!(LPC_SYSCON->MAINCLKUEN & 0x01)); /* Wait Until Updated */
|
||||
|
||||
LPC_SYSCON->SYSAHBCLKDIV = SYSAHBCLKDIV_Val;
|
||||
|
||||
#if ((USBCLKDIV_Val & 0x1FF) != 0) /* USB clock is used */
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 10); /* Power-up USB PHY */
|
||||
|
||||
#if ((USBCLKSEL_Val & 0x003) == 0) /* USB clock is USB PLL out */
|
||||
LPC_SYSCON->PDRUNCFG &= ~(1 << 8); /* Power-up USB PLL */
|
||||
LPC_SYSCON->USBPLLCLKSEL = USBPLLCLKSEL_Val; /* Select PLL Input */
|
||||
LPC_SYSCON->USBPLLCLKUEN = 0x01; /* Update Clock Source */
|
||||
LPC_SYSCON->USBPLLCLKUEN = 0x00; /* Toggle Update Register */
|
||||
LPC_SYSCON->USBPLLCLKUEN = 0x01;
|
||||
while (!(LPC_SYSCON->USBPLLCLKUEN & 0x01)); /* Wait Until Updated */
|
||||
LPC_SYSCON->USBPLLCTRL = USBPLLCTRL_Val;
|
||||
while (!(LPC_SYSCON->USBPLLSTAT & 0x01)); /* Wait Until PLL Locked */
|
||||
LPC_SYSCON->USBCLKSEL = 0x00; /* Select USB PLL */
|
||||
#endif
|
||||
|
||||
LPC_SYSCON->USBCLKSEL = USBCLKSEL_Val; /* Select USB Clock */
|
||||
LPC_SYSCON->USBCLKDIV = USBCLKDIV_Val; /* Set USB clock divider */
|
||||
|
||||
#else /* USB clock is not used */
|
||||
LPC_SYSCON->PDRUNCFG |= (1 << 10); /* Power-down USB PHY */
|
||||
LPC_SYSCON->PDRUNCFG |= (1 << 8); /* Power-down USB PLL */
|
||||
#endif
|
||||
|
||||
#endif
|
||||
|
||||
/* System clock to the IOCON needs to be enabled or
|
||||
most of the I/O related peripherals won't work. */
|
||||
LPC_SYSCON->SYSAHBCLKCTRL |= (1<<16);
|
||||
|
||||
}
|
||||
@@ -1,279 +0,0 @@
|
||||
/**************************************************************************//**
|
||||
* @file core_cm0.c
|
||||
* @brief CMSIS Cortex-M0 Core Peripheral Access Layer Source File
|
||||
* @version V2.00
|
||||
* @date 10. September 2010
|
||||
*
|
||||
* @note
|
||||
* Copyright (C) 2009-2010 ARM Limited. All rights reserved.
|
||||
*
|
||||
* @par
|
||||
* ARM Limited (ARM) is supplying this software for use with Cortex-M
|
||||
* processor based microcontrollers. This file can be freely distributed
|
||||
* within development tools that are supporting such ARM based processors.
|
||||
*
|
||||
* @par
|
||||
* THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
|
||||
* OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
|
||||
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
|
||||
* ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
|
||||
* CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
|
||||
*
|
||||
******************************************************************************/
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
/* define compiler specific symbols */
|
||||
#if defined ( __CC_ARM )
|
||||
#define __ASM __asm /*!< asm keyword for ARM Compiler */
|
||||
#define __INLINE __inline /*!< inline keyword for ARM Compiler */
|
||||
|
||||
#elif defined ( __ICCARM__ )
|
||||
#define __ASM __asm /*!< asm keyword for IAR Compiler */
|
||||
#define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */
|
||||
|
||||
#elif defined ( __GNUC__ )
|
||||
#define __ASM __asm /*!< asm keyword for GNU Compiler */
|
||||
#define __INLINE inline /*!< inline keyword for GNU Compiler */
|
||||
|
||||
#elif defined ( __TASKING__ )
|
||||
#define __ASM __asm /*!< asm keyword for TASKING Compiler */
|
||||
#define __INLINE inline /*!< inline keyword for TASKING Compiler */
|
||||
|
||||
#endif
|
||||
|
||||
|
||||
/* ########################## Core Instruction Access ######################### */
|
||||
|
||||
#if defined ( __CC_ARM ) /*------------------ RealView Compiler ----------------*/
|
||||
|
||||
/** \brief Reverse byte order (16 bit)
|
||||
|
||||
This function reverses the byte order in two unsigned short values.
|
||||
|
||||
\param [in] value Value to reverse
|
||||
\return Reversed value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400677)
|
||||
__ASM uint32_t __REV16(uint32_t value)
|
||||
{
|
||||
rev16 r0, r0
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Reverse byte order in signed short value
|
||||
|
||||
This function reverses the byte order in a signed short value with sign extension to integer.
|
||||
|
||||
\param [in] value Value to reverse
|
||||
\return Reversed value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400677)
|
||||
__ASM int32_t __REVSH(int32_t value)
|
||||
{
|
||||
revsh r0, r0
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Remove the exclusive lock
|
||||
|
||||
This function removes the exclusive lock which is created by LDREX.
|
||||
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM void __CLREX(void)
|
||||
{
|
||||
clrex
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
#elif (defined (__ICCARM__)) /*---------------- ICC Compiler ---------------------*/
|
||||
/* obsolete */
|
||||
#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/
|
||||
/* obsolete */
|
||||
#elif (defined (__TASKING__)) /*--------------- TASKING Compiler -----------------*/
|
||||
/* obsolete */
|
||||
#endif
|
||||
|
||||
|
||||
/* ########################### Core Function Access ########################### */
|
||||
|
||||
#if defined ( __CC_ARM ) /*------------------ RealView Compiler ----------------*/
|
||||
|
||||
/** \brief Get Control Register
|
||||
|
||||
This function returns the content of the Control Register.
|
||||
|
||||
\return Control Register value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM uint32_t __get_CONTROL(void)
|
||||
{
|
||||
mrs r0, control
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Set Control Register
|
||||
|
||||
This function writes the given value to the Control Register.
|
||||
|
||||
\param [in] control Control Register value to set
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM void __set_CONTROL(uint32_t control)
|
||||
{
|
||||
msr control, r0
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Get ISPR Register
|
||||
|
||||
This function returns the content of the ISPR Register.
|
||||
|
||||
\return ISPR Register value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM uint32_t __get_IPSR(void)
|
||||
{
|
||||
mrs r0, ipsr
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Get APSR Register
|
||||
|
||||
This function returns the content of the APSR Register.
|
||||
|
||||
\return APSR Register value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM uint32_t __get_APSR(void)
|
||||
{
|
||||
mrs r0, apsr
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Get xPSR Register
|
||||
|
||||
This function returns the content of the xPSR Register.
|
||||
|
||||
\return xPSR Register value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM uint32_t __get_xPSR(void)
|
||||
{
|
||||
mrs r0, xpsr
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Get Process Stack Pointer
|
||||
|
||||
This function returns the current value of the Process Stack Pointer (PSP).
|
||||
|
||||
\return PSP Register value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM uint32_t __get_PSP(void)
|
||||
{
|
||||
mrs r0, psp
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Set Process Stack Pointer
|
||||
|
||||
This function assigns the given value to the Process Stack Pointer (PSP).
|
||||
|
||||
\param [in] topOfProcStack Process Stack Pointer value to set
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM void __set_PSP(uint32_t topOfProcStack)
|
||||
{
|
||||
msr psp, r0
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Get Main Stack Pointer
|
||||
|
||||
This function returns the current value of the Main Stack Pointer (MSP).
|
||||
|
||||
\return MSP Register value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM uint32_t __get_MSP(void)
|
||||
{
|
||||
mrs r0, msp
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Set Main Stack Pointer
|
||||
|
||||
This function assigns the given value to the Main Stack Pointer (MSP).
|
||||
|
||||
\param [in] topOfMainStack Main Stack Pointer value to set
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM void __set_MSP(uint32_t mainStackPointer)
|
||||
{
|
||||
msr msp, r0
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Get Priority Mask
|
||||
|
||||
This function returns the current state of the priority mask bit from the Priority Mask Register.
|
||||
|
||||
\return Priority Mask value
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM uint32_t __get_PRIMASK(void)
|
||||
{
|
||||
mrs r0, primask
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
/** \brief Set Priority Mask
|
||||
|
||||
This function assigns the given value to the Priority Mask Register.
|
||||
|
||||
\param [in] priMask Priority Mask
|
||||
*/
|
||||
#if (__ARMCC_VERSION < 400000)
|
||||
__ASM void __set_PRIMASK(uint32_t priMask)
|
||||
{
|
||||
msr primask, r0
|
||||
bx lr
|
||||
}
|
||||
#endif /* __ARMCC_VERSION */
|
||||
|
||||
|
||||
#elif (defined (__ICCARM__)) /*---------------- ICC Compiler ---------------------*/
|
||||
/* obsolete */
|
||||
#elif (defined (__GNUC__)) /*------------------ GNU Compiler ---------------------*/
|
||||
/* obsolete */
|
||||
#elif (defined (__TASKING__)) /*--------------- TASKING Compiler -----------------*/
|
||||
/* obsolete */
|
||||
#endif
|
||||
Reference in New Issue
Block a user