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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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@393:17d2d502961d, 2014-11-07 (annotated)

Committer:
mbed_official
Date:
Fri Nov 07 12:00:11 2014 +0000
Revision:
393:17d2d502961d
Parent:
339:40bd4701f3e2
Child:
402:09075a3b15e3
Synchronized with git revision 78a3d4f2301aad7367e924e8231b4411d11038ea



Full URL: https://github.com/mbedmicro/mbed/commit/78a3d4f2301aad7367e924e8231b4411d11038ea/



Toolchain: NUCLEO_F0 - Add missing files for IAR exporter

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 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 87:085cde657901 31 #include "serial_api.h"
mbed_official 172:2f4f8c56b261 32
mbed_official 172:2f4f8c56b261 33 #if DEVICE_SERIAL
mbed_official 172:2f4f8c56b261 34
mbed_official 87:085cde657901 35 #include "cmsis.h"
mbed_official 87:085cde657901 36 #include "pinmap.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 242:7074e42da0b2 76
mbed_official 242:7074e42da0b2 77 if (obj->pin_rx == NC) {
mbed_official 242:7074e42da0b2 78 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 242:7074e42da0b2 79 } else if (obj->pin_tx == NC) {
mbed_official 242:7074e42da0b2 80 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 242:7074e42da0b2 81 } else {
mbed_official 242:7074e42da0b2 82 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 242:7074e42da0b2 83 }
mbed_official 172:2f4f8c56b261 84
mbed_official 172:2f4f8c56b261 85 HAL_UART_Init(&UartHandle);
mbed_official 87:085cde657901 86 }
mbed_official 87:085cde657901 87
mbed_official 172:2f4f8c56b261 88 void serial_init(serial_t *obj, PinName tx, PinName rx) {
mbed_official 87:085cde657901 89 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 87:085cde657901 90 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 87:085cde657901 91 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 172:2f4f8c56b261 92
mbed_official 87:085cde657901 93 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 87:085cde657901 94 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 95 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 87:085cde657901 96
mbed_official 87:085cde657901 97 // Enable USART clock
mbed_official 87:085cde657901 98 if (obj->uart == UART_1) {
mbed_official 87:085cde657901 99 __USART1_CLK_ENABLE();
mbed_official 215:83cf97a28428 100 obj->index = 0;
mbed_official 87:085cde657901 101 }
mbed_official 87:085cde657901 102 if (obj->uart == UART_2) {
mbed_official 87:085cde657901 103 __USART2_CLK_ENABLE();
mbed_official 215:83cf97a28428 104 obj->index = 1;
mbed_official 87:085cde657901 105 }
mbed_official 125:23cc3068a9e4 106 if (obj->uart == UART_6) {
mbed_official 125:23cc3068a9e4 107 __USART6_CLK_ENABLE();
mbed_official 215:83cf97a28428 108 obj->index = 2;
mbed_official 115:4f0cb9cdc478 109 }
mbed_official 172:2f4f8c56b261 110
mbed_official 87:085cde657901 111 // Configure the UART pins
mbed_official 87:085cde657901 112 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 87:085cde657901 113 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 339:40bd4701f3e2 114 if (tx != NC) {
mbed_official 339:40bd4701f3e2 115 pin_mode(tx, PullUp);
mbed_official 339:40bd4701f3e2 116 }
mbed_official 339:40bd4701f3e2 117 if (rx != NC) {
mbed_official 339:40bd4701f3e2 118 pin_mode(rx, PullUp);
mbed_official 339:40bd4701f3e2 119 }
mbed_official 172:2f4f8c56b261 120
mbed_official 87:085cde657901 121 // Configure UART
mbed_official 87:085cde657901 122 obj->baudrate = 9600;
mbed_official 87:085cde657901 123 obj->databits = UART_WORDLENGTH_8B;
mbed_official 87:085cde657901 124 obj->stopbits = UART_STOPBITS_1;
mbed_official 172:2f4f8c56b261 125 obj->parity = UART_PARITY_NONE;
mbed_official 87:085cde657901 126
mbed_official 215:83cf97a28428 127 obj->pin_tx = tx;
mbed_official 215:83cf97a28428 128 obj->pin_rx = rx;
mbed_official 87:085cde657901 129
mbed_official 215:83cf97a28428 130 init_uart(obj);
mbed_official 172:2f4f8c56b261 131
mbed_official 87:085cde657901 132 // For stdio management
mbed_official 87:085cde657901 133 if (obj->uart == STDIO_UART) {
mbed_official 87:085cde657901 134 stdio_uart_inited = 1;
mbed_official 87:085cde657901 135 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 87:085cde657901 136 }
mbed_official 172:2f4f8c56b261 137
mbed_official 87:085cde657901 138 }
mbed_official 87:085cde657901 139
mbed_official 87:085cde657901 140 void serial_free(serial_t *obj) {
mbed_official 215:83cf97a28428 141 // Reset UART and disable clock
mbed_official 215:83cf97a28428 142 if (obj->uart == UART_1) {
mbed_official 215:83cf97a28428 143 __USART1_FORCE_RESET();
mbed_official 215:83cf97a28428 144 __USART1_RELEASE_RESET();
mbed_official 215:83cf97a28428 145 __USART1_CLK_DISABLE();
mbed_official 215:83cf97a28428 146 }
mbed_official 215:83cf97a28428 147 if (obj->uart == UART_2) {
mbed_official 215:83cf97a28428 148 __USART2_FORCE_RESET();
mbed_official 215:83cf97a28428 149 __USART2_RELEASE_RESET();
mbed_official 215:83cf97a28428 150 __USART2_CLK_DISABLE();
mbed_official 215:83cf97a28428 151 }
mbed_official 215:83cf97a28428 152 if (obj->uart == UART_6) {
mbed_official 215:83cf97a28428 153 __USART6_FORCE_RESET();
mbed_official 215:83cf97a28428 154 __USART6_RELEASE_RESET();
mbed_official 215:83cf97a28428 155 __USART6_CLK_DISABLE();
mbed_official 215:83cf97a28428 156 }
mbed_official 215:83cf97a28428 157
mbed_official 215:83cf97a28428 158 // Configure GPIOs
mbed_official 215:83cf97a28428 159 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 160 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 161
mbed_official 87:085cde657901 162 serial_irq_ids[obj->index] = 0;
mbed_official 87:085cde657901 163 }
mbed_official 87:085cde657901 164
mbed_official 87:085cde657901 165 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 87:085cde657901 166 obj->baudrate = baudrate;
mbed_official 87:085cde657901 167 init_uart(obj);
mbed_official 87:085cde657901 168 }
mbed_official 87:085cde657901 169
mbed_official 87:085cde657901 170 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 242:7074e42da0b2 171 if (data_bits == 9) {
mbed_official 242:7074e42da0b2 172 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 173 } else {
mbed_official 87:085cde657901 174 obj->databits = UART_WORDLENGTH_8B;
mbed_official 87:085cde657901 175 }
mbed_official 87:085cde657901 176
mbed_official 87:085cde657901 177 switch (parity) {
mbed_official 172:2f4f8c56b261 178 case ParityOdd:
mbed_official 172:2f4f8c56b261 179 case ParityForced0:
mbed_official 172:2f4f8c56b261 180 obj->parity = UART_PARITY_ODD;
mbed_official 172:2f4f8c56b261 181 break;
mbed_official 172:2f4f8c56b261 182 case ParityEven:
mbed_official 172:2f4f8c56b261 183 case ParityForced1:
mbed_official 172:2f4f8c56b261 184 obj->parity = UART_PARITY_EVEN;
mbed_official 172:2f4f8c56b261 185 break;
mbed_official 172:2f4f8c56b261 186 default: // ParityNone
mbed_official 172:2f4f8c56b261 187 obj->parity = UART_PARITY_NONE;
mbed_official 172:2f4f8c56b261 188 break;
mbed_official 87:085cde657901 189 }
mbed_official 172:2f4f8c56b261 190
mbed_official 87:085cde657901 191 if (stop_bits == 2) {
mbed_official 87:085cde657901 192 obj->stopbits = UART_STOPBITS_2;
mbed_official 172:2f4f8c56b261 193 } else {
mbed_official 87:085cde657901 194 obj->stopbits = UART_STOPBITS_1;
mbed_official 87:085cde657901 195 }
mbed_official 87:085cde657901 196
mbed_official 87:085cde657901 197 init_uart(obj);
mbed_official 87:085cde657901 198 }
mbed_official 87:085cde657901 199
mbed_official 87:085cde657901 200 /******************************************************************************
mbed_official 87:085cde657901 201 * INTERRUPTS HANDLING
mbed_official 87:085cde657901 202 ******************************************************************************/
mbed_official 87:085cde657901 203
mbed_official 87:085cde657901 204 static void uart_irq(UARTName name, int id) {
mbed_official 87:085cde657901 205 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 87:085cde657901 206 if (serial_irq_ids[id] != 0) {
mbed_official 87:085cde657901 207 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 87:085cde657901 208 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 87:085cde657901 209 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 87:085cde657901 210 }
mbed_official 87:085cde657901 211 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 87:085cde657901 212 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 87:085cde657901 213 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 87:085cde657901 214 }
mbed_official 87:085cde657901 215 }
mbed_official 87:085cde657901 216 }
mbed_official 87:085cde657901 217
mbed_official 172:2f4f8c56b261 218 static void uart1_irq(void) {
mbed_official 172:2f4f8c56b261 219 uart_irq(UART_1, 0);
mbed_official 172:2f4f8c56b261 220 }
mbed_official 172:2f4f8c56b261 221 static void uart2_irq(void) {
mbed_official 172:2f4f8c56b261 222 uart_irq(UART_2, 1);
mbed_official 172:2f4f8c56b261 223 }
mbed_official 172:2f4f8c56b261 224 static void uart6_irq(void) {
mbed_official 172:2f4f8c56b261 225 uart_irq(UART_6, 2);
mbed_official 172:2f4f8c56b261 226 }
mbed_official 87:085cde657901 227
mbed_official 87:085cde657901 228 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 87:085cde657901 229 irq_handler = handler;
mbed_official 87:085cde657901 230 serial_irq_ids[obj->index] = id;
mbed_official 87:085cde657901 231 }
mbed_official 87:085cde657901 232
mbed_official 87:085cde657901 233 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 87:085cde657901 234 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 87:085cde657901 235 uint32_t vector = 0;
mbed_official 172:2f4f8c56b261 236
mbed_official 87:085cde657901 237 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 172:2f4f8c56b261 238
mbed_official 87:085cde657901 239 if (obj->uart == UART_1) {
mbed_official 172:2f4f8c56b261 240 irq_n = USART1_IRQn;
mbed_official 172:2f4f8c56b261 241 vector = (uint32_t)&uart1_irq;
mbed_official 87:085cde657901 242 }
mbed_official 172:2f4f8c56b261 243
mbed_official 87:085cde657901 244 if (obj->uart == UART_2) {
mbed_official 172:2f4f8c56b261 245 irq_n = USART2_IRQn;
mbed_official 172:2f4f8c56b261 246 vector = (uint32_t)&uart2_irq;
mbed_official 87:085cde657901 247 }
mbed_official 125:23cc3068a9e4 248
mbed_official 125:23cc3068a9e4 249 if (obj->uart == UART_6) {
mbed_official 172:2f4f8c56b261 250 irq_n = USART6_IRQn;
mbed_official 172:2f4f8c56b261 251 vector = (uint32_t)&uart6_irq;
mbed_official 125:23cc3068a9e4 252 }
mbed_official 172:2f4f8c56b261 253
mbed_official 87:085cde657901 254 if (enable) {
mbed_official 172:2f4f8c56b261 255
mbed_official 87:085cde657901 256 if (irq == RxIrq) {
mbed_official 87:085cde657901 257 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 172:2f4f8c56b261 258 } else { // TxIrq
mbed_official 87:085cde657901 259 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 172:2f4f8c56b261 260 }
mbed_official 172:2f4f8c56b261 261
mbed_official 87:085cde657901 262 NVIC_SetVector(irq_n, vector);
mbed_official 87:085cde657901 263 NVIC_EnableIRQ(irq_n);
mbed_official 172:2f4f8c56b261 264
mbed_official 87:085cde657901 265 } else { // disable
mbed_official 172:2f4f8c56b261 266
mbed_official 87:085cde657901 267 int all_disabled = 0;
mbed_official 172:2f4f8c56b261 268
mbed_official 87:085cde657901 269 if (irq == RxIrq) {
mbed_official 172:2f4f8c56b261 270 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 87:085cde657901 271 // Check if TxIrq is disabled too
mbed_official 87:085cde657901 272 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 172:2f4f8c56b261 273 } else { // TxIrq
mbed_official 87:085cde657901 274 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 87:085cde657901 275 // Check if RxIrq is disabled too
mbed_official 172:2f4f8c56b261 276 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 87:085cde657901 277 }
mbed_official 172:2f4f8c56b261 278
mbed_official 87:085cde657901 279 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 172:2f4f8c56b261 280
mbed_official 172:2f4f8c56b261 281 }
mbed_official 87:085cde657901 282 }
mbed_official 87:085cde657901 283
mbed_official 87:085cde657901 284 /******************************************************************************
mbed_official 87:085cde657901 285 * READ/WRITE
mbed_official 87:085cde657901 286 ******************************************************************************/
mbed_official 87:085cde657901 287
mbed_official 87:085cde657901 288 int serial_getc(serial_t *obj) {
mbed_official 87:085cde657901 289 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 290 while (!serial_readable(obj));
mbed_official 87:085cde657901 291 return (int)(uart->DR & 0x1FF);
mbed_official 87:085cde657901 292 }
mbed_official 87:085cde657901 293
mbed_official 87:085cde657901 294 void serial_putc(serial_t *obj, int c) {
mbed_official 87:085cde657901 295 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 296 while (!serial_writable(obj));
mbed_official 87:085cde657901 297 uart->DR = (uint32_t)(c & 0x1FF);
mbed_official 87:085cde657901 298 }
mbed_official 87:085cde657901 299
mbed_official 87:085cde657901 300 int serial_readable(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 received
mbed_official 87:085cde657901 304 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != 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 int serial_writable(serial_t *obj) {
mbed_official 87:085cde657901 309 int status;
mbed_official 87:085cde657901 310 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 311 // Check if data is transmitted
mbed_official 87:085cde657901 312 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 87:085cde657901 313 return status;
mbed_official 87:085cde657901 314 }
mbed_official 87:085cde657901 315
mbed_official 87:085cde657901 316 void serial_clear(serial_t *obj) {
mbed_official 87:085cde657901 317 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 318 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 87:085cde657901 319 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 87:085cde657901 320 }
mbed_official 87:085cde657901 321
mbed_official 87:085cde657901 322 void serial_pinout_tx(PinName tx) {
mbed_official 87:085cde657901 323 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 87:085cde657901 324 }
mbed_official 87:085cde657901 325
mbed_official 87:085cde657901 326 void serial_break_set(serial_t *obj) {
mbed_official 87:085cde657901 327 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 328 HAL_LIN_SendBreak(&UartHandle);
mbed_official 87:085cde657901 329 }
mbed_official 87:085cde657901 330
mbed_official 87:085cde657901 331 void serial_break_clear(serial_t *obj) {
mbed_official 87:085cde657901 332 }
mbed_official 172:2f4f8c56b261 333
mbed_official 172:2f4f8c56b261 334 #endif