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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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@274:6937b19af361, 2014-08-06 (annotated)

Committer:
mbed_official
Date:
Wed Aug 06 08:15:07 2014 +0100
Revision:
274:6937b19af361
Parent:
242:7074e42da0b2
Child:
339:40bd4701f3e2
Synchronized with git revision 5b145e4f6c509376173c3ea2aa35a6da879a2124



Full URL: https://github.com/mbedmicro/mbed/commit/5b145e4f6c509376173c3ea2aa35a6da879a2124/



[TARGET_LPC11UXX] PeripheralNames.h and PinMap definitions separation for LPC11UXX platforms

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 87:085cde657901 114 pin_mode(tx, PullUp);
mbed_official 87:085cde657901 115 pin_mode(rx, PullUp);
mbed_official 172:2f4f8c56b261 116
mbed_official 87:085cde657901 117 // Configure UART
mbed_official 87:085cde657901 118 obj->baudrate = 9600;
mbed_official 87:085cde657901 119 obj->databits = UART_WORDLENGTH_8B;
mbed_official 87:085cde657901 120 obj->stopbits = UART_STOPBITS_1;
mbed_official 172:2f4f8c56b261 121 obj->parity = UART_PARITY_NONE;
mbed_official 87:085cde657901 122
mbed_official 215:83cf97a28428 123 obj->pin_tx = tx;
mbed_official 215:83cf97a28428 124 obj->pin_rx = rx;
mbed_official 87:085cde657901 125
mbed_official 215:83cf97a28428 126 init_uart(obj);
mbed_official 172:2f4f8c56b261 127
mbed_official 87:085cde657901 128 // For stdio management
mbed_official 87:085cde657901 129 if (obj->uart == STDIO_UART) {
mbed_official 87:085cde657901 130 stdio_uart_inited = 1;
mbed_official 87:085cde657901 131 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 87:085cde657901 132 }
mbed_official 172:2f4f8c56b261 133
mbed_official 87:085cde657901 134 }
mbed_official 87:085cde657901 135
mbed_official 87:085cde657901 136 void serial_free(serial_t *obj) {
mbed_official 215:83cf97a28428 137 // Reset UART and disable clock
mbed_official 215:83cf97a28428 138 if (obj->uart == UART_1) {
mbed_official 215:83cf97a28428 139 __USART1_FORCE_RESET();
mbed_official 215:83cf97a28428 140 __USART1_RELEASE_RESET();
mbed_official 215:83cf97a28428 141 __USART1_CLK_DISABLE();
mbed_official 215:83cf97a28428 142 }
mbed_official 215:83cf97a28428 143 if (obj->uart == UART_2) {
mbed_official 215:83cf97a28428 144 __USART2_FORCE_RESET();
mbed_official 215:83cf97a28428 145 __USART2_RELEASE_RESET();
mbed_official 215:83cf97a28428 146 __USART2_CLK_DISABLE();
mbed_official 215:83cf97a28428 147 }
mbed_official 215:83cf97a28428 148 if (obj->uart == UART_6) {
mbed_official 215:83cf97a28428 149 __USART6_FORCE_RESET();
mbed_official 215:83cf97a28428 150 __USART6_RELEASE_RESET();
mbed_official 215:83cf97a28428 151 __USART6_CLK_DISABLE();
mbed_official 215:83cf97a28428 152 }
mbed_official 215:83cf97a28428 153
mbed_official 215:83cf97a28428 154 // Configure GPIOs
mbed_official 215:83cf97a28428 155 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 156 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 215:83cf97a28428 157
mbed_official 87:085cde657901 158 serial_irq_ids[obj->index] = 0;
mbed_official 87:085cde657901 159 }
mbed_official 87:085cde657901 160
mbed_official 87:085cde657901 161 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 87:085cde657901 162 obj->baudrate = baudrate;
mbed_official 87:085cde657901 163 init_uart(obj);
mbed_official 87:085cde657901 164 }
mbed_official 87:085cde657901 165
mbed_official 87:085cde657901 166 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 242:7074e42da0b2 167 if (data_bits == 9) {
mbed_official 242:7074e42da0b2 168 obj->databits = UART_WORDLENGTH_9B;
mbed_official 242:7074e42da0b2 169 } else {
mbed_official 87:085cde657901 170 obj->databits = UART_WORDLENGTH_8B;
mbed_official 87:085cde657901 171 }
mbed_official 87:085cde657901 172
mbed_official 87:085cde657901 173 switch (parity) {
mbed_official 172:2f4f8c56b261 174 case ParityOdd:
mbed_official 172:2f4f8c56b261 175 case ParityForced0:
mbed_official 172:2f4f8c56b261 176 obj->parity = UART_PARITY_ODD;
mbed_official 172:2f4f8c56b261 177 break;
mbed_official 172:2f4f8c56b261 178 case ParityEven:
mbed_official 172:2f4f8c56b261 179 case ParityForced1:
mbed_official 172:2f4f8c56b261 180 obj->parity = UART_PARITY_EVEN;
mbed_official 172:2f4f8c56b261 181 break;
mbed_official 172:2f4f8c56b261 182 default: // ParityNone
mbed_official 172:2f4f8c56b261 183 obj->parity = UART_PARITY_NONE;
mbed_official 172:2f4f8c56b261 184 break;
mbed_official 87:085cde657901 185 }
mbed_official 172:2f4f8c56b261 186
mbed_official 87:085cde657901 187 if (stop_bits == 2) {
mbed_official 87:085cde657901 188 obj->stopbits = UART_STOPBITS_2;
mbed_official 172:2f4f8c56b261 189 } else {
mbed_official 87:085cde657901 190 obj->stopbits = UART_STOPBITS_1;
mbed_official 87:085cde657901 191 }
mbed_official 87:085cde657901 192
mbed_official 87:085cde657901 193 init_uart(obj);
mbed_official 87:085cde657901 194 }
mbed_official 87:085cde657901 195
mbed_official 87:085cde657901 196 /******************************************************************************
mbed_official 87:085cde657901 197 * INTERRUPTS HANDLING
mbed_official 87:085cde657901 198 ******************************************************************************/
mbed_official 87:085cde657901 199
mbed_official 87:085cde657901 200 static void uart_irq(UARTName name, int id) {
mbed_official 87:085cde657901 201 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 87:085cde657901 202 if (serial_irq_ids[id] != 0) {
mbed_official 87:085cde657901 203 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 87:085cde657901 204 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 87:085cde657901 205 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 87:085cde657901 206 }
mbed_official 87:085cde657901 207 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 87:085cde657901 208 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 87:085cde657901 209 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 87:085cde657901 210 }
mbed_official 87:085cde657901 211 }
mbed_official 87:085cde657901 212 }
mbed_official 87:085cde657901 213
mbed_official 172:2f4f8c56b261 214 static void uart1_irq(void) {
mbed_official 172:2f4f8c56b261 215 uart_irq(UART_1, 0);
mbed_official 172:2f4f8c56b261 216 }
mbed_official 172:2f4f8c56b261 217 static void uart2_irq(void) {
mbed_official 172:2f4f8c56b261 218 uart_irq(UART_2, 1);
mbed_official 172:2f4f8c56b261 219 }
mbed_official 172:2f4f8c56b261 220 static void uart6_irq(void) {
mbed_official 172:2f4f8c56b261 221 uart_irq(UART_6, 2);
mbed_official 172:2f4f8c56b261 222 }
mbed_official 87:085cde657901 223
mbed_official 87:085cde657901 224 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 87:085cde657901 225 irq_handler = handler;
mbed_official 87:085cde657901 226 serial_irq_ids[obj->index] = id;
mbed_official 87:085cde657901 227 }
mbed_official 87:085cde657901 228
mbed_official 87:085cde657901 229 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 87:085cde657901 230 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 87:085cde657901 231 uint32_t vector = 0;
mbed_official 172:2f4f8c56b261 232
mbed_official 87:085cde657901 233 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 172:2f4f8c56b261 234
mbed_official 87:085cde657901 235 if (obj->uart == UART_1) {
mbed_official 172:2f4f8c56b261 236 irq_n = USART1_IRQn;
mbed_official 172:2f4f8c56b261 237 vector = (uint32_t)&uart1_irq;
mbed_official 87:085cde657901 238 }
mbed_official 172:2f4f8c56b261 239
mbed_official 87:085cde657901 240 if (obj->uart == UART_2) {
mbed_official 172:2f4f8c56b261 241 irq_n = USART2_IRQn;
mbed_official 172:2f4f8c56b261 242 vector = (uint32_t)&uart2_irq;
mbed_official 87:085cde657901 243 }
mbed_official 125:23cc3068a9e4 244
mbed_official 125:23cc3068a9e4 245 if (obj->uart == UART_6) {
mbed_official 172:2f4f8c56b261 246 irq_n = USART6_IRQn;
mbed_official 172:2f4f8c56b261 247 vector = (uint32_t)&uart6_irq;
mbed_official 125:23cc3068a9e4 248 }
mbed_official 172:2f4f8c56b261 249
mbed_official 87:085cde657901 250 if (enable) {
mbed_official 172:2f4f8c56b261 251
mbed_official 87:085cde657901 252 if (irq == RxIrq) {
mbed_official 87:085cde657901 253 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 172:2f4f8c56b261 254 } else { // TxIrq
mbed_official 87:085cde657901 255 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 172:2f4f8c56b261 256 }
mbed_official 172:2f4f8c56b261 257
mbed_official 87:085cde657901 258 NVIC_SetVector(irq_n, vector);
mbed_official 87:085cde657901 259 NVIC_EnableIRQ(irq_n);
mbed_official 172:2f4f8c56b261 260
mbed_official 87:085cde657901 261 } else { // disable
mbed_official 172:2f4f8c56b261 262
mbed_official 87:085cde657901 263 int all_disabled = 0;
mbed_official 172:2f4f8c56b261 264
mbed_official 87:085cde657901 265 if (irq == RxIrq) {
mbed_official 172:2f4f8c56b261 266 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 87:085cde657901 267 // Check if TxIrq is disabled too
mbed_official 87:085cde657901 268 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 172:2f4f8c56b261 269 } else { // TxIrq
mbed_official 87:085cde657901 270 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 87:085cde657901 271 // Check if RxIrq is disabled too
mbed_official 172:2f4f8c56b261 272 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 87:085cde657901 273 }
mbed_official 172:2f4f8c56b261 274
mbed_official 87:085cde657901 275 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 172:2f4f8c56b261 276
mbed_official 172:2f4f8c56b261 277 }
mbed_official 87:085cde657901 278 }
mbed_official 87:085cde657901 279
mbed_official 87:085cde657901 280 /******************************************************************************
mbed_official 87:085cde657901 281 * READ/WRITE
mbed_official 87:085cde657901 282 ******************************************************************************/
mbed_official 87:085cde657901 283
mbed_official 87:085cde657901 284 int serial_getc(serial_t *obj) {
mbed_official 87:085cde657901 285 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 286 while (!serial_readable(obj));
mbed_official 87:085cde657901 287 return (int)(uart->DR & 0x1FF);
mbed_official 87:085cde657901 288 }
mbed_official 87:085cde657901 289
mbed_official 87:085cde657901 290 void serial_putc(serial_t *obj, int c) {
mbed_official 87:085cde657901 291 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 292 while (!serial_writable(obj));
mbed_official 87:085cde657901 293 uart->DR = (uint32_t)(c & 0x1FF);
mbed_official 87:085cde657901 294 }
mbed_official 87:085cde657901 295
mbed_official 87:085cde657901 296 int serial_readable(serial_t *obj) {
mbed_official 87:085cde657901 297 int status;
mbed_official 87:085cde657901 298 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 299 // Check if data is received
mbed_official 87:085cde657901 300 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 87:085cde657901 301 return status;
mbed_official 87:085cde657901 302 }
mbed_official 87:085cde657901 303
mbed_official 87:085cde657901 304 int serial_writable(serial_t *obj) {
mbed_official 87:085cde657901 305 int status;
mbed_official 87:085cde657901 306 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 307 // Check if data is transmitted
mbed_official 87:085cde657901 308 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 87:085cde657901 309 return status;
mbed_official 87:085cde657901 310 }
mbed_official 87:085cde657901 311
mbed_official 87:085cde657901 312 void serial_clear(serial_t *obj) {
mbed_official 87:085cde657901 313 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 314 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 87:085cde657901 315 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 87:085cde657901 316 }
mbed_official 87:085cde657901 317
mbed_official 87:085cde657901 318 void serial_pinout_tx(PinName tx) {
mbed_official 87:085cde657901 319 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 87:085cde657901 320 }
mbed_official 87:085cde657901 321
mbed_official 87:085cde657901 322 void serial_break_set(serial_t *obj) {
mbed_official 87:085cde657901 323 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 87:085cde657901 324 HAL_LIN_SendBreak(&UartHandle);
mbed_official 87:085cde657901 325 }
mbed_official 87:085cde657901 326
mbed_official 87:085cde657901 327 void serial_break_clear(serial_t *obj) {
mbed_official 87:085cde657901 328 }
mbed_official 172:2f4f8c56b261 329
mbed_official 172:2f4f8c56b261 330 #endif