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add uart for mcb1800

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This commit is contained in:
hathach
2020-05-03 14:50:12 +07:00
parent d1141c2d9d
commit 9538ca7d74
2 changed files with 56 additions and 41 deletions
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hw/bsp/mcb1800/mcb1800.c
+21 -15
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@@ -64,6 +64,11 @@ void USB1_IRQHandler(void)
#define BUTTON_PORT 2
#define BUTTON_PIN 0
#define UART_DEV LPC_USART3
#define UART_PORT 0x02
#define UART_PIN_TX 3
#define UART_PIN_RX 4
/* System configuration variables used by chip driver */
const uint32_t OscRateIn = 12000000;
@@ -84,6 +89,10 @@ static const PINMUX_GRP_T pinmuxing[] =
// Button
{0x4, 0, (SCU_MODE_INBUFF_EN | SCU_MODE_INACT | SCU_MODE_FUNC0 | SCU_MODE_PULLUP)},
// UART
{UART_PORT, UART_PIN_TX, SCU_MODE_PULLDOWN | SCU_MODE_FUNC2 },
{UART_PORT, UART_PIN_RX, SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2 },
/* I2S */
{0x3, 0, (SCU_PINIO_FAST | SCU_MODE_FUNC2)},
{0x6, 0, (SCU_PINIO_FAST | SCU_MODE_FUNC4)},
@@ -137,19 +146,11 @@ void board_init(void)
// Button
Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
#if 0
//------------- UART -------------//
scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN, FUNC1);
scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN | MD_EZI | MD_ZI, FUNC1);
UART_CFG_Type UARTConfigStruct;
UART_ConfigStructInit(&UARTConfigStruct);
UARTConfigStruct.Baud_rate = CFG_BOARD_UART_BAUDRATE;
UARTConfigStruct.Clock_Speed = 0;
UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
#endif
Chip_UART_Init(UART_DEV);
Chip_UART_SetBaud(UART_DEV, CFG_BOARD_UART_BAUDRATE);
Chip_UART_ConfigData(UART_DEV, UART_LCR_WLEN8 | UART_LCR_SBS_1BIT | UART_LCR_PARITY_DIS);
Chip_UART_TXEnable(UART_DEV);
//------------- USB -------------//
enum {
@@ -223,9 +224,14 @@ int board_uart_read(uint8_t* buf, int len)
int board_uart_write(void const * buf, int len)
{
//UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
(void) buf; (void) len;
return 0;
uint8_t const* buf8 = (uint8_t const*) buf;
for(int i=0; i<len; i++)
{
while ((Chip_UART_ReadLineStatus(UART_DEV) & UART_LSR_THRE) == 0) {}
Chip_UART_SendByte(UART_DEV, buf8[i]);
}
return len;
}
#if CFG_TUSB_OS == OPT_OS_NONE