diff options
Diffstat (limited to 'stm-uart.c')
| -rw-r--r-- | stm-uart.c | 18 |
1 files changed, 12 insertions, 6 deletions
@@ -41,21 +41,27 @@ UART_HandleTypeDef huart2; /* send a single character */ -void uart_send_char(uint8_t ch) +HAL_StatusTypeDef uart_send_char(uint8_t ch) { - HAL_UART_Transmit(&huart2, &ch, 1, 0x1); + return HAL_UART_Transmit(&huart2, &ch, 1, 0x1); +} + +/* receive a single character */ +HAL_StatusTypeDef uart_recv_char(uint8_t *cp) +{ + return HAL_UART_Receive(&huart2, cp, 1, 0x0); } /* send a string */ -void uart_send_string(char *s) +HAL_StatusTypeDef uart_send_string(char *s) { - HAL_UART_Transmit(&huart2, (uint8_t *) s, strlen(s), 0x1); + return HAL_UART_Transmit(&huart2, (uint8_t *) s, strlen(s), 0x1); } /* Generalized routine to send binary, decimal, and hex integers. * This code is adapted from Chris Giese's printf.c */ -void uart_send_number(uint32_t num, uint8_t digits, uint8_t radix) +HAL_StatusTypeDef uart_send_number(uint32_t num, uint8_t digits, uint8_t radix) { #define BUFSIZE 32 char buf[BUFSIZE]; @@ -83,5 +89,5 @@ void uart_send_number(uint32_t num, uint8_t digits, uint8_t radix) /* number is larger than the specified number of digits */ digits = buf + BUFSIZE - where; - HAL_UART_Transmit(&huart2, (uint8_t *) where, digits, 0x1); + return HAL_UART_Transmit(&huart2, (uint8_t *) where, digits, 0x1); } |