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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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_STM32L4/serial_api.c@610:813dcc80987e, 2015-08-14 (annotated)

Committer:
mbed_official
Date:
Fri Aug 14 13:15:17 2015 +0100
Revision:
610:813dcc80987e
Synchronized with git revision 6d84db41c6833e0b9b024741eb0616a5f62d5599



Full URL: https://github.com/mbedmicro/mbed/commit/6d84db41c6833e0b9b024741eb0616a5f62d5599/



DISCO_F746NG - Improvements

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 610:813dcc80987e 1 /* mbed Microcontroller Library
mbed_official 610:813dcc80987e 2 *******************************************************************************
mbed_official 610:813dcc80987e 3 * Copyright (c) 2015, STMicroelectronics
mbed_official 610:813dcc80987e 4 * All rights reserved.
mbed_official 610:813dcc80987e 5 *
mbed_official 610:813dcc80987e 6 * Redistribution and use in source and binary forms, with or without
mbed_official 610:813dcc80987e 7 * modification, are permitted provided that the following conditions are met:
mbed_official 610:813dcc80987e 8 *
mbed_official 610:813dcc80987e 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 610:813dcc80987e 10 * this list of conditions and the following disclaimer.
mbed_official 610:813dcc80987e 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 610:813dcc80987e 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 610:813dcc80987e 13 * and/or other materials provided with the distribution.
mbed_official 610:813dcc80987e 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 610:813dcc80987e 15 * may be used to endorse or promote products derived from this software
mbed_official 610:813dcc80987e 16 * without specific prior written permission.
mbed_official 610:813dcc80987e 17 *
mbed_official 610:813dcc80987e 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 610:813dcc80987e 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 610:813dcc80987e 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 610:813dcc80987e 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 610:813dcc80987e 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 610:813dcc80987e 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 610:813dcc80987e 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 610:813dcc80987e 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 610:813dcc80987e 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 610:813dcc80987e 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 610:813dcc80987e 28 *******************************************************************************
mbed_official 610:813dcc80987e 29 */
mbed_official 610:813dcc80987e 30 #include "mbed_assert.h"
mbed_official 610:813dcc80987e 31 #include "serial_api.h"
mbed_official 610:813dcc80987e 32
mbed_official 610:813dcc80987e 33 #if DEVICE_SERIAL
mbed_official 610:813dcc80987e 34
mbed_official 610:813dcc80987e 35 #include "cmsis.h"
mbed_official 610:813dcc80987e 36 #include "pinmap.h"
mbed_official 610:813dcc80987e 37 #include "mbed_error.h"
mbed_official 610:813dcc80987e 38 #include <string.h>
mbed_official 610:813dcc80987e 39 #include "PeripheralPins.h"
mbed_official 610:813dcc80987e 40
mbed_official 610:813dcc80987e 41 #define UART_NUM (6)
mbed_official 610:813dcc80987e 42
mbed_official 610:813dcc80987e 43 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0, 0};
mbed_official 610:813dcc80987e 44
mbed_official 610:813dcc80987e 45 static uart_irq_handler irq_handler;
mbed_official 610:813dcc80987e 46
mbed_official 610:813dcc80987e 47 UART_HandleTypeDef UartHandle;
mbed_official 610:813dcc80987e 48
mbed_official 610:813dcc80987e 49 int stdio_uart_inited = 0;
mbed_official 610:813dcc80987e 50 serial_t stdio_uart;
mbed_official 610:813dcc80987e 51
mbed_official 610:813dcc80987e 52 static void init_uart(serial_t *obj)
mbed_official 610:813dcc80987e 53 {
mbed_official 610:813dcc80987e 54 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 55
mbed_official 610:813dcc80987e 56 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 610:813dcc80987e 57 UartHandle.Init.WordLength = obj->databits;
mbed_official 610:813dcc80987e 58 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 610:813dcc80987e 59 UartHandle.Init.Parity = obj->parity;
mbed_official 610:813dcc80987e 60 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 610:813dcc80987e 61 UartHandle.Init.OverSampling = UART_OVERSAMPLING_16;
mbed_official 610:813dcc80987e 62 UartHandle.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_ENABLE;
mbed_official 610:813dcc80987e 63
mbed_official 610:813dcc80987e 64 if (obj->pin_rx == NC) {
mbed_official 610:813dcc80987e 65 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 610:813dcc80987e 66 } else if (obj->pin_tx == NC) {
mbed_official 610:813dcc80987e 67 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 610:813dcc80987e 68 } else {
mbed_official 610:813dcc80987e 69 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 610:813dcc80987e 70 }
mbed_official 610:813dcc80987e 71
mbed_official 610:813dcc80987e 72 if (HAL_UART_Init(&UartHandle) != HAL_OK) {
mbed_official 610:813dcc80987e 73 error("Cannot initialize UART\n");
mbed_official 610:813dcc80987e 74 }
mbed_official 610:813dcc80987e 75 }
mbed_official 610:813dcc80987e 76
mbed_official 610:813dcc80987e 77 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 610:813dcc80987e 78 {
mbed_official 610:813dcc80987e 79 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 610:813dcc80987e 80 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 610:813dcc80987e 81 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 610:813dcc80987e 82
mbed_official 610:813dcc80987e 83 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 610:813dcc80987e 84 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 610:813dcc80987e 85 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 610:813dcc80987e 86
mbed_official 610:813dcc80987e 87 obj->baudrate = 9600; // Default excepted for LPUART_1 (see below)
mbed_official 610:813dcc80987e 88
mbed_official 610:813dcc80987e 89 // Enable UART clock
mbed_official 610:813dcc80987e 90 if (obj->uart == UART_1) {
mbed_official 610:813dcc80987e 91 __HAL_RCC_USART1_CLK_ENABLE();
mbed_official 610:813dcc80987e 92 obj->index = 0;
mbed_official 610:813dcc80987e 93 }
mbed_official 610:813dcc80987e 94
mbed_official 610:813dcc80987e 95 if (obj->uart == UART_2) {
mbed_official 610:813dcc80987e 96 __HAL_RCC_USART2_CLK_ENABLE();
mbed_official 610:813dcc80987e 97 obj->index = 1;
mbed_official 610:813dcc80987e 98 }
mbed_official 610:813dcc80987e 99
mbed_official 610:813dcc80987e 100 if (obj->uart == UART_3) {
mbed_official 610:813dcc80987e 101 __HAL_RCC_USART3_CLK_ENABLE();
mbed_official 610:813dcc80987e 102 obj->index = 2;
mbed_official 610:813dcc80987e 103 }
mbed_official 610:813dcc80987e 104
mbed_official 610:813dcc80987e 105 if (obj->uart == UART_4) {
mbed_official 610:813dcc80987e 106 __HAL_RCC_UART4_CLK_ENABLE();
mbed_official 610:813dcc80987e 107 obj->index = 3;
mbed_official 610:813dcc80987e 108 }
mbed_official 610:813dcc80987e 109
mbed_official 610:813dcc80987e 110 if (obj->uart == UART_5) {
mbed_official 610:813dcc80987e 111 __HAL_RCC_UART5_CLK_ENABLE();
mbed_official 610:813dcc80987e 112 obj->index = 4;
mbed_official 610:813dcc80987e 113 }
mbed_official 610:813dcc80987e 114
mbed_official 610:813dcc80987e 115 if (obj->uart == LPUART_1) {
mbed_official 610:813dcc80987e 116 __HAL_RCC_LPUART1_CLK_ENABLE();
mbed_official 610:813dcc80987e 117 obj->baudrate = 38400; // Maximum peripheral clock is 4096 x BR -> This is the minimum BR with 80 MHz peripheral clock.
mbed_official 610:813dcc80987e 118 obj->index = 5;
mbed_official 610:813dcc80987e 119 }
mbed_official 610:813dcc80987e 120
mbed_official 610:813dcc80987e 121 // Configure the UART pins
mbed_official 610:813dcc80987e 122 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 610:813dcc80987e 123 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 610:813dcc80987e 124 if (tx != NC) {
mbed_official 610:813dcc80987e 125 pin_mode(tx, PullUp);
mbed_official 610:813dcc80987e 126 }
mbed_official 610:813dcc80987e 127 if (rx != NC) {
mbed_official 610:813dcc80987e 128 pin_mode(rx, PullUp);
mbed_official 610:813dcc80987e 129 }
mbed_official 610:813dcc80987e 130
mbed_official 610:813dcc80987e 131 // Configure UART
mbed_official 610:813dcc80987e 132 obj->databits = UART_WORDLENGTH_8B;
mbed_official 610:813dcc80987e 133 obj->stopbits = UART_STOPBITS_1;
mbed_official 610:813dcc80987e 134 obj->parity = UART_PARITY_NONE;
mbed_official 610:813dcc80987e 135 obj->pin_tx = tx;
mbed_official 610:813dcc80987e 136 obj->pin_rx = rx;
mbed_official 610:813dcc80987e 137
mbed_official 610:813dcc80987e 138 init_uart(obj);
mbed_official 610:813dcc80987e 139
mbed_official 610:813dcc80987e 140 // For stdio management
mbed_official 610:813dcc80987e 141 if (obj->uart == STDIO_UART) {
mbed_official 610:813dcc80987e 142 stdio_uart_inited = 1;
mbed_official 610:813dcc80987e 143 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 610:813dcc80987e 144 }
mbed_official 610:813dcc80987e 145 }
mbed_official 610:813dcc80987e 146
mbed_official 610:813dcc80987e 147 void serial_free(serial_t *obj)
mbed_official 610:813dcc80987e 148 {
mbed_official 610:813dcc80987e 149 // Reset UART and disable clock
mbed_official 610:813dcc80987e 150 if (obj->uart == UART_1) {
mbed_official 610:813dcc80987e 151 __HAL_RCC_USART1_FORCE_RESET();
mbed_official 610:813dcc80987e 152 __HAL_RCC_USART1_RELEASE_RESET();
mbed_official 610:813dcc80987e 153 __HAL_RCC_USART1_CLK_DISABLE();
mbed_official 610:813dcc80987e 154 }
mbed_official 610:813dcc80987e 155
mbed_official 610:813dcc80987e 156 if (obj->uart == UART_2) {
mbed_official 610:813dcc80987e 157 __HAL_RCC_USART2_FORCE_RESET();
mbed_official 610:813dcc80987e 158 __HAL_RCC_USART2_RELEASE_RESET();
mbed_official 610:813dcc80987e 159 __HAL_RCC_USART2_CLK_DISABLE();
mbed_official 610:813dcc80987e 160 }
mbed_official 610:813dcc80987e 161
mbed_official 610:813dcc80987e 162 if (obj->uart == UART_3) {
mbed_official 610:813dcc80987e 163 __HAL_RCC_USART3_FORCE_RESET();
mbed_official 610:813dcc80987e 164 __HAL_RCC_USART3_RELEASE_RESET();
mbed_official 610:813dcc80987e 165 __HAL_RCC_USART3_CLK_DISABLE();
mbed_official 610:813dcc80987e 166 }
mbed_official 610:813dcc80987e 167
mbed_official 610:813dcc80987e 168 if (obj->uart == UART_4) {
mbed_official 610:813dcc80987e 169 __HAL_RCC_UART4_FORCE_RESET();
mbed_official 610:813dcc80987e 170 __HAL_RCC_UART4_RELEASE_RESET();
mbed_official 610:813dcc80987e 171 __HAL_RCC_UART4_CLK_DISABLE();
mbed_official 610:813dcc80987e 172 }
mbed_official 610:813dcc80987e 173
mbed_official 610:813dcc80987e 174 if (obj->uart == UART_5) {
mbed_official 610:813dcc80987e 175 __HAL_RCC_UART5_FORCE_RESET();
mbed_official 610:813dcc80987e 176 __HAL_RCC_UART5_RELEASE_RESET();
mbed_official 610:813dcc80987e 177 __HAL_RCC_UART5_CLK_DISABLE();
mbed_official 610:813dcc80987e 178 }
mbed_official 610:813dcc80987e 179
mbed_official 610:813dcc80987e 180 if (obj->uart == LPUART_1) {
mbed_official 610:813dcc80987e 181 __HAL_RCC_LPUART1_FORCE_RESET();
mbed_official 610:813dcc80987e 182 __HAL_RCC_LPUART1_RELEASE_RESET();
mbed_official 610:813dcc80987e 183 __HAL_RCC_LPUART1_CLK_DISABLE();
mbed_official 610:813dcc80987e 184 }
mbed_official 610:813dcc80987e 185
mbed_official 610:813dcc80987e 186 // Configure GPIOs
mbed_official 610:813dcc80987e 187 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 610:813dcc80987e 188 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 610:813dcc80987e 189
mbed_official 610:813dcc80987e 190 serial_irq_ids[obj->index] = 0;
mbed_official 610:813dcc80987e 191 }
mbed_official 610:813dcc80987e 192
mbed_official 610:813dcc80987e 193 void serial_baud(serial_t *obj, int baudrate)
mbed_official 610:813dcc80987e 194 {
mbed_official 610:813dcc80987e 195 // Check minimum baud rate for 80 MHz peripheral clock
mbed_official 610:813dcc80987e 196 if ((obj->uart == LPUART_1) && (baudrate < 38400)) {
mbed_official 610:813dcc80987e 197 error("The minimum baud rate is 38400 for LPUART_1 running at 80 MHz\n");
mbed_official 610:813dcc80987e 198 }
mbed_official 610:813dcc80987e 199 obj->baudrate = baudrate;
mbed_official 610:813dcc80987e 200 init_uart(obj);
mbed_official 610:813dcc80987e 201 }
mbed_official 610:813dcc80987e 202
mbed_official 610:813dcc80987e 203 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 610:813dcc80987e 204 {
mbed_official 610:813dcc80987e 205 if (data_bits == 9) {
mbed_official 610:813dcc80987e 206 obj->databits = UART_WORDLENGTH_9B;
mbed_official 610:813dcc80987e 207 } else {
mbed_official 610:813dcc80987e 208 obj->databits = UART_WORDLENGTH_8B;
mbed_official 610:813dcc80987e 209 }
mbed_official 610:813dcc80987e 210
mbed_official 610:813dcc80987e 211 switch (parity) {
mbed_official 610:813dcc80987e 212 case ParityOdd:
mbed_official 610:813dcc80987e 213 case ParityForced0:
mbed_official 610:813dcc80987e 214 obj->parity = UART_PARITY_ODD;
mbed_official 610:813dcc80987e 215 break;
mbed_official 610:813dcc80987e 216 case ParityEven:
mbed_official 610:813dcc80987e 217 case ParityForced1:
mbed_official 610:813dcc80987e 218 obj->parity = UART_PARITY_EVEN;
mbed_official 610:813dcc80987e 219 break;
mbed_official 610:813dcc80987e 220 default: // ParityNone
mbed_official 610:813dcc80987e 221 obj->parity = UART_PARITY_NONE;
mbed_official 610:813dcc80987e 222 break;
mbed_official 610:813dcc80987e 223 }
mbed_official 610:813dcc80987e 224
mbed_official 610:813dcc80987e 225 if (stop_bits == 2) {
mbed_official 610:813dcc80987e 226 obj->stopbits = UART_STOPBITS_2;
mbed_official 610:813dcc80987e 227 } else {
mbed_official 610:813dcc80987e 228 obj->stopbits = UART_STOPBITS_1;
mbed_official 610:813dcc80987e 229 }
mbed_official 610:813dcc80987e 230
mbed_official 610:813dcc80987e 231 init_uart(obj);
mbed_official 610:813dcc80987e 232 }
mbed_official 610:813dcc80987e 233
mbed_official 610:813dcc80987e 234 /******************************************************************************
mbed_official 610:813dcc80987e 235 * INTERRUPTS HANDLING
mbed_official 610:813dcc80987e 236 ******************************************************************************/
mbed_official 610:813dcc80987e 237
mbed_official 610:813dcc80987e 238 static void uart_irq(UARTName name, int id)
mbed_official 610:813dcc80987e 239 {
mbed_official 610:813dcc80987e 240 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 610:813dcc80987e 241 if (serial_irq_ids[id] != 0) {
mbed_official 610:813dcc80987e 242 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 610:813dcc80987e 243 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 610:813dcc80987e 244 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 610:813dcc80987e 245 }
mbed_official 610:813dcc80987e 246 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 610:813dcc80987e 247 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 610:813dcc80987e 248 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 610:813dcc80987e 249 }
mbed_official 610:813dcc80987e 250 }
mbed_official 610:813dcc80987e 251 }
mbed_official 610:813dcc80987e 252
mbed_official 610:813dcc80987e 253 static void uart1_irq(void)
mbed_official 610:813dcc80987e 254 {
mbed_official 610:813dcc80987e 255 uart_irq(UART_1, 0);
mbed_official 610:813dcc80987e 256 }
mbed_official 610:813dcc80987e 257
mbed_official 610:813dcc80987e 258 static void uart2_irq(void)
mbed_official 610:813dcc80987e 259 {
mbed_official 610:813dcc80987e 260 uart_irq(UART_2, 1);
mbed_official 610:813dcc80987e 261 }
mbed_official 610:813dcc80987e 262
mbed_official 610:813dcc80987e 263 static void uart3_irq(void)
mbed_official 610:813dcc80987e 264 {
mbed_official 610:813dcc80987e 265 uart_irq(UART_3, 2);
mbed_official 610:813dcc80987e 266 }
mbed_official 610:813dcc80987e 267
mbed_official 610:813dcc80987e 268 static void uart4_irq(void)
mbed_official 610:813dcc80987e 269 {
mbed_official 610:813dcc80987e 270 uart_irq(UART_4, 3);
mbed_official 610:813dcc80987e 271 }
mbed_official 610:813dcc80987e 272
mbed_official 610:813dcc80987e 273 static void uart5_irq(void)
mbed_official 610:813dcc80987e 274 {
mbed_official 610:813dcc80987e 275 uart_irq(UART_5, 4);
mbed_official 610:813dcc80987e 276 }
mbed_official 610:813dcc80987e 277
mbed_official 610:813dcc80987e 278 static void lpuart1_irq(void)
mbed_official 610:813dcc80987e 279 {
mbed_official 610:813dcc80987e 280 uart_irq(LPUART_1, 5);
mbed_official 610:813dcc80987e 281 }
mbed_official 610:813dcc80987e 282
mbed_official 610:813dcc80987e 283 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 610:813dcc80987e 284 {
mbed_official 610:813dcc80987e 285 irq_handler = handler;
mbed_official 610:813dcc80987e 286 serial_irq_ids[obj->index] = id;
mbed_official 610:813dcc80987e 287 }
mbed_official 610:813dcc80987e 288
mbed_official 610:813dcc80987e 289 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 610:813dcc80987e 290 {
mbed_official 610:813dcc80987e 291 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 610:813dcc80987e 292 uint32_t vector = 0;
mbed_official 610:813dcc80987e 293
mbed_official 610:813dcc80987e 294 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 295
mbed_official 610:813dcc80987e 296 if (obj->uart == UART_1) {
mbed_official 610:813dcc80987e 297 irq_n = USART1_IRQn;
mbed_official 610:813dcc80987e 298 vector = (uint32_t)&uart1_irq;
mbed_official 610:813dcc80987e 299 }
mbed_official 610:813dcc80987e 300
mbed_official 610:813dcc80987e 301 if (obj->uart == UART_2) {
mbed_official 610:813dcc80987e 302 irq_n = USART2_IRQn;
mbed_official 610:813dcc80987e 303 vector = (uint32_t)&uart2_irq;
mbed_official 610:813dcc80987e 304 }
mbed_official 610:813dcc80987e 305
mbed_official 610:813dcc80987e 306 if (obj->uart == UART_3) {
mbed_official 610:813dcc80987e 307 irq_n = USART3_IRQn;
mbed_official 610:813dcc80987e 308 vector = (uint32_t)&uart3_irq;
mbed_official 610:813dcc80987e 309 }
mbed_official 610:813dcc80987e 310
mbed_official 610:813dcc80987e 311 if (obj->uart == UART_4) {
mbed_official 610:813dcc80987e 312 irq_n = UART4_IRQn;
mbed_official 610:813dcc80987e 313 vector = (uint32_t)&uart4_irq;
mbed_official 610:813dcc80987e 314 }
mbed_official 610:813dcc80987e 315
mbed_official 610:813dcc80987e 316 if (obj->uart == UART_5) {
mbed_official 610:813dcc80987e 317 irq_n = UART5_IRQn;
mbed_official 610:813dcc80987e 318 vector = (uint32_t)&uart5_irq;
mbed_official 610:813dcc80987e 319 }
mbed_official 610:813dcc80987e 320
mbed_official 610:813dcc80987e 321 if (obj->uart == LPUART_1) {
mbed_official 610:813dcc80987e 322 irq_n = LPUART1_IRQn;
mbed_official 610:813dcc80987e 323 vector = (uint32_t)&lpuart1_irq;
mbed_official 610:813dcc80987e 324 }
mbed_official 610:813dcc80987e 325
mbed_official 610:813dcc80987e 326 if (enable) {
mbed_official 610:813dcc80987e 327
mbed_official 610:813dcc80987e 328 if (irq == RxIrq) {
mbed_official 610:813dcc80987e 329 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 610:813dcc80987e 330 } else { // TxIrq
mbed_official 610:813dcc80987e 331 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 610:813dcc80987e 332 }
mbed_official 610:813dcc80987e 333
mbed_official 610:813dcc80987e 334 NVIC_SetVector(irq_n, vector);
mbed_official 610:813dcc80987e 335 NVIC_EnableIRQ(irq_n);
mbed_official 610:813dcc80987e 336
mbed_official 610:813dcc80987e 337 } else { // disable
mbed_official 610:813dcc80987e 338
mbed_official 610:813dcc80987e 339 int all_disabled = 0;
mbed_official 610:813dcc80987e 340
mbed_official 610:813dcc80987e 341 if (irq == RxIrq) {
mbed_official 610:813dcc80987e 342 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 610:813dcc80987e 343 // Check if TxIrq is disabled too
mbed_official 610:813dcc80987e 344 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 610:813dcc80987e 345 } else { // TxIrq
mbed_official 610:813dcc80987e 346 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 610:813dcc80987e 347 // Check if RxIrq is disabled too
mbed_official 610:813dcc80987e 348 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 610:813dcc80987e 349 }
mbed_official 610:813dcc80987e 350
mbed_official 610:813dcc80987e 351 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 610:813dcc80987e 352
mbed_official 610:813dcc80987e 353 }
mbed_official 610:813dcc80987e 354 }
mbed_official 610:813dcc80987e 355
mbed_official 610:813dcc80987e 356 /******************************************************************************
mbed_official 610:813dcc80987e 357 * READ/WRITE
mbed_official 610:813dcc80987e 358 ******************************************************************************/
mbed_official 610:813dcc80987e 359
mbed_official 610:813dcc80987e 360 int serial_getc(serial_t *obj)
mbed_official 610:813dcc80987e 361 {
mbed_official 610:813dcc80987e 362 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 363 while (!serial_readable(obj));
mbed_official 610:813dcc80987e 364 return (int)(uart->RDR & (uint32_t)0xFF);
mbed_official 610:813dcc80987e 365 }
mbed_official 610:813dcc80987e 366
mbed_official 610:813dcc80987e 367 void serial_putc(serial_t *obj, int c)
mbed_official 610:813dcc80987e 368 {
mbed_official 610:813dcc80987e 369 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 370 while (!serial_writable(obj));
mbed_official 610:813dcc80987e 371 uart->TDR = (uint32_t)(c & (uint32_t)0xFF);
mbed_official 610:813dcc80987e 372 }
mbed_official 610:813dcc80987e 373
mbed_official 610:813dcc80987e 374 int serial_readable(serial_t *obj)
mbed_official 610:813dcc80987e 375 {
mbed_official 610:813dcc80987e 376 int status;
mbed_official 610:813dcc80987e 377 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 378 // Check if data is received
mbed_official 610:813dcc80987e 379 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 610:813dcc80987e 380 return status;
mbed_official 610:813dcc80987e 381 }
mbed_official 610:813dcc80987e 382
mbed_official 610:813dcc80987e 383 int serial_writable(serial_t *obj)
mbed_official 610:813dcc80987e 384 {
mbed_official 610:813dcc80987e 385 int status;
mbed_official 610:813dcc80987e 386 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 387 // Check if data is transmitted
mbed_official 610:813dcc80987e 388 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 610:813dcc80987e 389 return status;
mbed_official 610:813dcc80987e 390 }
mbed_official 610:813dcc80987e 391
mbed_official 610:813dcc80987e 392 void serial_clear(serial_t *obj)
mbed_official 610:813dcc80987e 393 {
mbed_official 610:813dcc80987e 394 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 395 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 610:813dcc80987e 396 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 610:813dcc80987e 397 }
mbed_official 610:813dcc80987e 398
mbed_official 610:813dcc80987e 399 void serial_pinout_tx(PinName tx)
mbed_official 610:813dcc80987e 400 {
mbed_official 610:813dcc80987e 401 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 610:813dcc80987e 402 }
mbed_official 610:813dcc80987e 403
mbed_official 610:813dcc80987e 404 void serial_break_set(serial_t *obj)
mbed_official 610:813dcc80987e 405 {
mbed_official 610:813dcc80987e 406 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 610:813dcc80987e 407 HAL_LIN_SendBreak(&UartHandle);
mbed_official 610:813dcc80987e 408 }
mbed_official 610:813dcc80987e 409
mbed_official 610:813dcc80987e 410 void serial_break_clear(serial_t *obj)
mbed_official 610:813dcc80987e 411 {
mbed_official 610:813dcc80987e 412 }
mbed_official 610:813dcc80987e 413
mbed_official 610:813dcc80987e 414 #endif