mbed official / mbed-src

mbed library sources

Dependents:   Encrypted my_mbed lklk CyaSSL_DTLS_Cellular ... more

Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.

Development branch of the mbed library sources. This library is kept in synch with the latest changes from the mbed SDK and it is not guaranteed to work.

If you are looking for a stable and tested release, please import one of the official mbed library releases:

Import librarymbed

The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.

Last commit 20 Feb 2019 by mbed official

targets/hal/TARGET_STM/TARGET_NUCLEO_F401RE/serial_api.c@215:83cf97a28428, 2014-05-27 (annotated)

Committer:
mbed_official
Date:
Tue May 27 08:30:06 2014 +0100
Revision:
215:83cf97a28428
Parent:
172:2f4f8c56b261
Child:
227:7bd0639b8911
Synchronized with git revision a8b7f5df2cb5d7a76fda549a15b91fdaba6e2986



Full URL: https://github.com/mbedmicro/mbed/commit/a8b7f5df2cb5d7a76fda549a15b91fdaba6e2986/



[KLXX] Added RPC + RTOS support (KL05Z)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 87:085cde657901 1 /* mbed Microcontroller Library
mbed_official 87:085cde657901 2 *******************************************************************************
mbed_official 87:085cde657901 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 87:085cde657901 4 * All rights reserved.
mbed_official 87:085cde657901 5 *
mbed_official 87:085cde657901 6 * Redistribution and use in source and binary forms, with or without
mbed_official 87:085cde657901 7 * modification, are permitted provided that the following conditions are met:
mbed_official 87:085cde657901 8 *
mbed_official 87:085cde657901 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 87:085cde657901 10 * this list of conditions and the following disclaimer.
mbed_official 87:085cde657901 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 87:085cde657901 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 87:085cde657901 13 * and/or other materials provided with the distribution.
mbed_official 87:085cde657901 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 87:085cde657901 15 * may be used to endorse or promote products derived from this software
mbed_official 87:085cde657901 16 * without specific prior written permission.
mbed_official 87:085cde657901 17 *
mbed_official 87:085cde657901 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 87:085cde657901 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 87:085cde657901 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 87:085cde657901 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 87:085cde657901 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 87:085cde657901 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 87:085cde657901 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 87:085cde657901 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 87:085cde657901 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 87:085cde657901 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 87:085cde657901 28 *******************************************************************************
mbed_official 87:085cde657901 29 */
mbed_official 87:085cde657901 30 #include "serial_api.h"
mbed_official 172:2f4f8c56b261 31
mbed_official 172:2f4f8c56b261 32 #if DEVICE_SERIAL
mbed_official 172:2f4f8c56b261 33
mbed_official 87:085cde657901 34 #include "cmsis.h"
mbed_official 87:085cde657901 35 #include "pinmap.h"
mbed_official 87:085cde657901 36 #include "error.h"
mbed_official 87:085cde657901 37 #include <string.h>
mbed_official 87:085cde657901 38
mbed_official 87:085cde657901 39 static const PinMap PinMap_UART_TX[] = {
mbed_official 125:23cc3068a9e4 40 {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
mbed_official 87:085cde657901 41 {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 125:23cc3068a9e4 42 {PA_11, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 125:23cc3068a9e4 43 {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 125:23cc3068a9e4 44 {PC_6, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 87:085cde657901 45 {NC, NC, 0}
mbed_official 87:085cde657901 46 };
mbed_official 87:085cde657901 47
mbed_official 87:085cde657901 48 static const PinMap PinMap_UART_RX[] = {
mbed_official 125:23cc3068a9e4 49 {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
mbed_official 87:085cde657901 50 {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 125:23cc3068a9e4 51 {PA_12, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 125:23cc3068a9e4 52 {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 125:23cc3068a9e4 53 {PC_7, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 87:085cde657901 54 {NC, NC, 0}
mbed_official 87:085cde657901 55 };
mbed_official 87:085cde657901 56
mbed_official 115:4f0cb9cdc478 57 #define UART_NUM (3)
mbed_official 87:085cde657901 58
mbed_official 172:2f4f8c56b261 59 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
mbed_official 87:085cde657901 60
mbed_official 87:085cde657901 61 static uart_irq_handler irq_handler;
mbed_official 87:085cde657901 62
mbed_official 87:085cde657901 63 UART_HandleTypeDef UartHandle;
mbed_official 172:2f4f8c56b261 64
mbed_official 87:085cde657901 65 int stdio_uart_inited = 0;
mbed_official 87:085cde657901 66 serial_t stdio_uart;
mbed_official 87:085cde657901 67
mbed_official 87:085cde657901 68 static void init_uart(serial_t *obj) {
mbed_official 87:085cde657901 69 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 172:2f4f8c56b261 70
mbed_official 87:085cde657901 71 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 87:085cde657901 72 UartHandle.Init.WordLength = obj->databits;
mbed_official 87:085cde657901 73 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 87:085cde657901 74 UartHandle.Init.Parity = obj->parity;
mbed_official 87:085cde657901 75 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 87:085cde657901 76 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 172:2f4f8c56b261 77
mbed_official 172:2f4f8c56b261 78 HAL_UART_Init(&UartHandle);
mbed_official 87:085cde657901 79 }
mbed_official 87:085cde657901 80
mbed_official 172:2f4f8c56b261 81 void serial_init(serial_t *obj, PinName tx, PinName rx) {
mbed_official 87:085cde657901 82 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 87:085cde657901 83 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 87:085cde657901 84 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 172:2f4f8c56b261 85
mbed_official 87:085cde657901 86 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 87:085cde657901 87 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 87:085cde657901 88
mbed_official 87:085cde657901 89 if (obj->uart == (UARTName)NC) {
mbed_official 87:085cde657901 90 error("Serial error: pinout mapping failed.");
mbed_official 87:085cde657901 91 }
mbed_official 87:085cde657901 92
mbed_official 87:085cde657901 93 // Enable USART clock
mbed_official 87:085cde657901 94 if (obj->uart == UART_1) {
mbed_official 87:085cde657901 95 __USART1_CLK_ENABLE();
mbed_official 215:83cf97a28428 96 obj->index = 0;
mbed_official 87:085cde657901 97 }
mbed_official 87:085cde657901 98 if (obj->uart == UART_2) {
mbed_official 87:085cde657901 99 __USART2_CLK_ENABLE();
mbed_official 215:83cf97a28428 100 obj->index = 1;
mbed_official 87:085cde657901 101 }
mbed_official 125:23cc3068a9e4 102 if (obj->uart == UART_6) {
mbed_official 125:23cc3068a9e4 103 __USART6_CLK_ENABLE();
mbed_official 215:83cf97a28428 104 obj->index = 2;
mbed_official 115:4f0cb9cdc478 105 }
mbed_official 172:2f4f8c56b261 106
mbed_official 87:085cde657901 107 // Configure the UART pins
mbed_official 87:085cde657901 108 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 87:085cde657901 109 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 87:085cde657901 110 pin_mode(tx, PullUp);
mbed_official 87:085cde657901 111 pin_mode(rx, PullUp);
mbed_official 172:2f4f8c56b261 112
mbed_official 87:085cde657901 113 // Configure UART
mbed_official 87:085cde657901 114 obj->baudrate = 9600;
mbed_official 87:085cde657901 115 obj->databits = UART_WORDLENGTH_8B;
mbed_official 87:085cde657901 116 obj->stopbits = UART_STOPBITS_1;
mbed_official 172:2f4f8c56b261 117 obj->parity = UART_PARITY_NONE;
mbed_official 87:085cde657901 118
mbed_official 215:83cf97a28428 119 obj->pin_tx = tx;
mbed_official 215:83cf97a28428 120 obj->pin_rx = rx;
mbed_official 87:085cde657901 121
mbed_official 215:83cf97a28428 122 init_uart(obj);
mbed_official 172:2f4f8c56b261 123
mbed_official 87:085cde657901 124 // For stdio management
mbed_official 87:085cde657901 125 if (obj->uart == STDIO_UART) {
mbed_official 87:085cde657901 126 stdio_uart_inited = 1;
mbed_official 87:085cde657901 127 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 87:085cde657901 128 }
mbed_official 172:2f4f8c56b261 129
mbed_official 87:085cde657901 130 }
mbed_official 87:085cde657901 131
mbed_official 87:085cde657901 132 void serial_free(serial_t *obj) {
mbed_official 215:83cf97a28428 133 // Reset UART and disable clock
mbed_official 215:83cf97a28428 134 if (obj->uart == UART_1) {
mbed_official 215:83cf97a28428 135 __USART1_FORCE_RESET();
mbed_official 215:83cf97a28428 136 __USART1_RELEASE_RESET();
mbed_official 215:83cf97a28428 137 __USART1_CLK_DISABLE();
mbed_official 215:83cf97a28428 138 }
mbed_official 215:83cf97a28428 139 if (obj->uart == UART_2) {
mbed_official 215:83cf97a28428 140 __USART2_FORCE_RESET();
mbed_official 215:83cf97a28428 141 __USART2_RELEASE_RESET();
mbed_official 215:83cf97a28428 142 __USART2_CLK_DISABLE();
mbed_official 215:83cf97a28428 143 }
mbed_official 215:83cf97a28428 144 if (obj->uart == UART_6) {
mbed_official 215:83cf97a28428 145 __USART6_FORCE_RESET();
mbed_official 215:83cf97a28428 146 __USART6_RELEASE_RESET();
mbed_official 215:83cf97a28428 147 __USART6_CLK_DISABLE();
mbed_official 215:83cf97a28428 148 }
mbed_official 215:83cf97a28428 149
mbed_official 215:83cf97a28428 150 // Configure GPIOs
mbed_official 215:83cf97a28428 151 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 152 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 153
mbed_official 87:085cde657901 154 serial_irq_ids[obj->index] = 0;
mbed_official 87:085cde657901 155 }
mbed_official 87:085cde657901 156
mbed_official 87:085cde657901 157 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 87:085cde657901 158 obj->baudrate = baudrate;
mbed_official 87:085cde657901 159 init_uart(obj);
mbed_official 87:085cde657901 160 }
mbed_official 87:085cde657901 161
mbed_official 87:085cde657901 162 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 87:085cde657901 163 if (data_bits == 8) {
mbed_official 87:085cde657901 164 obj->databits = UART_WORDLENGTH_8B;
mbed_official 172:2f4f8c56b261 165 } else {
mbed_official 87:085cde657901 166 obj->databits = UART_WORDLENGTH_9B;
mbed_official 87:085cde657901 167 }
mbed_official 87:085cde657901 168
mbed_official 87:085cde657901 169 switch (parity) {
mbed_official 172:2f4f8c56b261 170 case ParityOdd:
mbed_official 172:2f4f8c56b261 171 case ParityForced0:
mbed_official 172:2f4f8c56b261 172 obj->parity = UART_PARITY_ODD;
mbed_official 172:2f4f8c56b261 173 break;
mbed_official 172:2f4f8c56b261 174 case ParityEven:
mbed_official 172:2f4f8c56b261 175 case ParityForced1:
mbed_official 172:2f4f8c56b261 176 obj->parity = UART_PARITY_EVEN;
mbed_official 172:2f4f8c56b261 177 break;
mbed_official 172:2f4f8c56b261 178 default: // ParityNone
mbed_official 172:2f4f8c56b261 179 obj->parity = UART_PARITY_NONE;
mbed_official 172:2f4f8c56b261 180 break;
mbed_official 87:085cde657901 181 }
mbed_official 172:2f4f8c56b261 182
mbed_official 87:085cde657901 183 if (stop_bits == 2) {
mbed_official 87:085cde657901 184 obj->stopbits = UART_STOPBITS_2;
mbed_official 172:2f4f8c56b261 185 } else {
mbed_official 87:085cde657901 186 obj->stopbits = UART_STOPBITS_1;
mbed_official 87:085cde657901 187 }
mbed_official 87:085cde657901 188
mbed_official 87:085cde657901 189 init_uart(obj);
mbed_official 87:085cde657901 190 }
mbed_official 87:085cde657901 191
mbed_official 87:085cde657901 192 /******************************************************************************
mbed_official 87:085cde657901 193 * INTERRUPTS HANDLING
mbed_official 87:085cde657901 194 ******************************************************************************/
mbed_official 87:085cde657901 195
mbed_official 87:085cde657901 196 static void uart_irq(UARTName name, int id) {
mbed_official 87:085cde657901 197 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 87:085cde657901 198 if (serial_irq_ids[id] != 0) {
mbed_official 87:085cde657901 199 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 87:085cde657901 200 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 87:085cde657901 201 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 87:085cde657901 202 }
mbed_official 87:085cde657901 203 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 87:085cde657901 204 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 87:085cde657901 205 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 87:085cde657901 206 }
mbed_official 87:085cde657901 207 }
mbed_official 87:085cde657901 208 }
mbed_official 87:085cde657901 209
mbed_official 172:2f4f8c56b261 210 static void uart1_irq(void) {
mbed_official 172:2f4f8c56b261 211 uart_irq(UART_1, 0);
mbed_official 172:2f4f8c56b261 212 }
mbed_official 172:2f4f8c56b261 213 static void uart2_irq(void) {
mbed_official 172:2f4f8c56b261 214 uart_irq(UART_2, 1);
mbed_official 172:2f4f8c56b261 215 }
mbed_official 172:2f4f8c56b261 216 static void uart6_irq(void) {
mbed_official 172:2f4f8c56b261 217 uart_irq(UART_6, 2);
mbed_official 172:2f4f8c56b261 218 }
mbed_official 87:085cde657901 219
mbed_official 87:085cde657901 220 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 87:085cde657901 221 irq_handler = handler;
mbed_official 87:085cde657901 222 serial_irq_ids[obj->index] = id;
mbed_official 87:085cde657901 223 }
mbed_official 87:085cde657901 224
mbed_official 87:085cde657901 225 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 87:085cde657901 226 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 87:085cde657901 227 uint32_t vector = 0;
mbed_official 172:2f4f8c56b261 228
mbed_official 87:085cde657901 229 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 172:2f4f8c56b261 230
mbed_official 87:085cde657901 231 if (obj->uart == UART_1) {
mbed_official 172:2f4f8c56b261 232 irq_n = USART1_IRQn;
mbed_official 172:2f4f8c56b261 233 vector = (uint32_t)&uart1_irq;
mbed_official 87:085cde657901 234 }
mbed_official 172:2f4f8c56b261 235
mbed_official 87:085cde657901 236 if (obj->uart == UART_2) {
mbed_official 172:2f4f8c56b261 237 irq_n = USART2_IRQn;
mbed_official 172:2f4f8c56b261 238 vector = (uint32_t)&uart2_irq;
mbed_official 87:085cde657901 239 }
mbed_official 125:23cc3068a9e4 240
mbed_official 125:23cc3068a9e4 241 if (obj->uart == UART_6) {
mbed_official 172:2f4f8c56b261 242 irq_n = USART6_IRQn;
mbed_official 172:2f4f8c56b261 243 vector = (uint32_t)&uart6_irq;
mbed_official 125:23cc3068a9e4 244 }
mbed_official 172:2f4f8c56b261 245
mbed_official 87:085cde657901 246 if (enable) {
mbed_official 172:2f4f8c56b261 247
mbed_official 87:085cde657901 248 if (irq == RxIrq) {
mbed_official 87:085cde657901 249 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 172:2f4f8c56b261 250 } else { // TxIrq
mbed_official 87:085cde657901 251 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 172:2f4f8c56b261 252 }
mbed_official 172:2f4f8c56b261 253
mbed_official 87:085cde657901 254 NVIC_SetVector(irq_n, vector);
mbed_official 87:085cde657901 255 NVIC_EnableIRQ(irq_n);
mbed_official 172:2f4f8c56b261 256
mbed_official 87:085cde657901 257 } else { // disable
mbed_official 172:2f4f8c56b261 258
mbed_official 87:085cde657901 259 int all_disabled = 0;
mbed_official 172:2f4f8c56b261 260
mbed_official 87:085cde657901 261 if (irq == RxIrq) {
mbed_official 172:2f4f8c56b261 262 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 87:085cde657901 263 // Check if TxIrq is disabled too
mbed_official 87:085cde657901 264 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 172:2f4f8c56b261 265 } else { // TxIrq
mbed_official 87:085cde657901 266 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 87:085cde657901 267 // Check if RxIrq is disabled too
mbed_official 172:2f4f8c56b261 268 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 87:085cde657901 269 }
mbed_official 172:2f4f8c56b261 270
mbed_official 87:085cde657901 271 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 172:2f4f8c56b261 272
mbed_official 172:2f4f8c56b261 273 }
mbed_official 87:085cde657901 274 }
mbed_official 87:085cde657901 275
mbed_official 87:085cde657901 276 /******************************************************************************
mbed_official 87:085cde657901 277 * READ/WRITE
mbed_official 87:085cde657901 278 ******************************************************************************/
mbed_official 87:085cde657901 279
mbed_official 87:085cde657901 280 int serial_getc(serial_t *obj) {
mbed_official 87:085cde657901 281 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 282 while (!serial_readable(obj));
mbed_official 87:085cde657901 283 return (int)(uart->DR & 0x1FF);
mbed_official 87:085cde657901 284 }
mbed_official 87:085cde657901 285
mbed_official 87:085cde657901 286 void serial_putc(serial_t *obj, int c) {
mbed_official 87:085cde657901 287 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 288 while (!serial_writable(obj));
mbed_official 87:085cde657901 289 uart->DR = (uint32_t)(c & 0x1FF);
mbed_official 87:085cde657901 290 }
mbed_official 87:085cde657901 291
mbed_official 87:085cde657901 292 int serial_readable(serial_t *obj) {
mbed_official 87:085cde657901 293 int status;
mbed_official 87:085cde657901 294 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 295 // Check if data is received
mbed_official 87:085cde657901 296 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 87:085cde657901 297 return status;
mbed_official 87:085cde657901 298 }
mbed_official 87:085cde657901 299
mbed_official 87:085cde657901 300 int serial_writable(serial_t *obj) {
mbed_official 87:085cde657901 301 int status;
mbed_official 87:085cde657901 302 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 303 // Check if data is transmitted
mbed_official 87:085cde657901 304 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 87:085cde657901 305 return status;
mbed_official 87:085cde657901 306 }
mbed_official 87:085cde657901 307
mbed_official 87:085cde657901 308 void serial_clear(serial_t *obj) {
mbed_official 87:085cde657901 309 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 310 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 87:085cde657901 311 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 87:085cde657901 312 }
mbed_official 87:085cde657901 313
mbed_official 87:085cde657901 314 void serial_pinout_tx(PinName tx) {
mbed_official 87:085cde657901 315 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 87:085cde657901 316 }
mbed_official 87:085cde657901 317
mbed_official 87:085cde657901 318 void serial_break_set(serial_t *obj) {
mbed_official 87:085cde657901 319 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 320 HAL_LIN_SendBreak(&UartHandle);
mbed_official 87:085cde657901 321 }
mbed_official 87:085cde657901 322
mbed_official 87:085cde657901 323 void serial_break_clear(serial_t *obj) {
mbed_official 87:085cde657901 324 }
mbed_official 172:2f4f8c56b261 325
mbed_official 172:2f4f8c56b261 326 #endif