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00001 /** @file hal/micro/cortexm3/uart.h 00002 * @brief Header for STM32W uart drivers, supporting IAR's standard library 00003 * IO routines. 00004 * 00005 * <!--(C) COPYRIGHT 2010 STMicroelectronics. All rights reserved. --> 00006 */ 00007 00008 #ifndef __UART_MIN_H__ 00009 #define __UART_MIN_H__ 00010 #ifdef __ICCARM__ 00011 #include <yfuns.h> 00012 #endif 00013 00014 /** 00015 * @brief A list of the possible values for the parity parameter to uartInit() 00016 */ 00017 typedef enum 00018 { 00019 PARITY_NONE = 0, 00020 PARITY_ODD = 1, 00021 PARITY_EVEN = 2 00022 } SerialParity; 00023 00024 /** 00025 * @brief Initialize the UART 00026 * 00027 * @param baudrate The baudrate which will be used for communication. 00028 * Ex: 115200 00029 * 00030 * @param databits The number of data bits used for communication. 00031 * Valid values are 7 or 8 00032 * 00033 * @param parity The type of parity used for communication. 00034 * See the SerialParity enum for possible values 00035 * 00036 * @return stopbits The number of stop bits used for communication. 00037 * Valid values are 1 or 2 00038 */ 00039 void uartInit(int32u baudrate, int8u databits, SerialParity parity, int8u stopbits); 00040 00041 #ifdef __ICCARM__ 00042 /** 00043 * @brief Flush the output stream. DLib_Config_Full.h defines fflush(), but 00044 * this library includes too much code so we compile with DLib_Config_Normal.h 00045 * instead which does not define fflush(). Therefore, we manually define 00046 * fflush() in the low level UART driver. This function simply redirects 00047 * to the __write() function with a NULL buffer, triggering a flush. 00048 * 00049 * @param handle The output stream. Should be set to 'stdout' like normal. 00050 * 00051 * @return Zero, indicating success. 00052 */ 00053 size_t fflush(int handle); 00054 00055 /** 00056 * @brief Define the stdout stream. Since we compile with DLib_Config_Normal.h 00057 * it does not define 'stdout'. There is a low-level IO define '_LLIO_STDOUT' 00058 * which is equivalent to stdout. Therefore, we define 'stdout' to be 00059 * '_LLIO_STDOUT'. 00060 */ 00061 #define stdout _LLIO_STDOUT 00062 #endif 00063 /** 00064 * @brief Read the input byte if any. 00065 */ 00066 boolean __io_getcharNonBlocking(int8u *data); 00067 void __io_putchar( char c ); 00068 int __io_getchar(void); 00069 void __io_flush( void ); 00070 00071 00072 #endif //__UART_MIN_H__