add uart for lpc11uxx and retarget successfully

tinyusb/common/fifo.c

@@ -84,13 +84,17 @@ static inline void mutex_unlock (fifo_t* f)
                 Set the -1 if not required.
 */
 /**************************************************************************/
-void fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable, IRQn_Type irq)
+bool fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable, IRQn_Type irq)
 {
+  ASSERT(size > 0, false);
+
   f->buf = buffer;
   f->size = size;
   f->rd_ptr = f->wr_ptr = f->len = 0;
   f->overwritable = overwritable;
   f->irq = irq;
+
+  return true;
 }
 
 /**************************************************************************/

tinyusb/common/fifo.h

@@ -69,8 +69,7 @@ typedef struct _fifo_t
            IRQn_Type irq         ; ///< interrupt used to lock fifo
 } fifo_t;
 
-
-void fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable, IRQn_Type irq);
+bool fifo_init(fifo_t* f, uint8_t* buffer, uint16_t size, bool overwritable, IRQn_Type irq);
 bool fifo_write(fifo_t* f, uint8_t data);
 bool fifo_read(fifo_t* f, uint8_t *data);
 uint16_t fifo_readArray(fifo_t* f, uint8_t * rx, uint16_t maxlen);

tinyusb/common/mcu/mcu.h

@@ -51,13 +51,13 @@
 #ifndef _TUSB_MCU_H_
 #define _TUSB_MCU_H_
 
-#define MCU_LPC13UXX 1
-#define MCU_LPC11UXX 2
-#define MCU_LPC43XX 3
-
 #define ENDIAN_LITTLE ///< MCU Endian
 #define ALIGNMENT (4) ///< MCU Alignment
 
+#define MCU_LPC13UXX 0
+#define MCU_LPC11UXX 1
+#define MCU_LPC43XX  2
+
 #if MCU == MCU_LPC13UXX
   #include "mcu_lpc13uxx.h"
 #elif MCU == MCU_LPC43XX