lzbp li / mbed-stm32l0l1-src-un

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Fork of mbed-stm32l0/l1-src by lzbp li

targets/hal/TARGET_STM/TARGET_STM32F3/serial_api.c@632:7687fb9c4f91, 2015-09-28 (annotated)

Committer:
mbed_official
Date:
Mon Sep 28 14:00:11 2015 +0100
Revision:
632:7687fb9c4f91
Parent:
508:4f5903e025e6
Child:
634:ac7d6880524d
Synchronized with git revision f7ce4ed029cc611121464252ff28d5e8beb895b0



Full URL: https://github.com/mbedmicro/mbed/commit/f7ce4ed029cc611121464252ff28d5e8beb895b0/



NUCLEO_F303K8 - add support of the STM32F303K8

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 508:4f5903e025e6 1 /* mbed Microcontroller Library
mbed_official 508:4f5903e025e6 2 *******************************************************************************
mbed_official 508:4f5903e025e6 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 508:4f5903e025e6 4 * All rights reserved.
mbed_official 508:4f5903e025e6 5 *
mbed_official 508:4f5903e025e6 6 * Redistribution and use in source and binary forms, with or without
mbed_official 508:4f5903e025e6 7 * modification, are permitted provided that the following conditions are met:
mbed_official 508:4f5903e025e6 8 *
mbed_official 508:4f5903e025e6 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 508:4f5903e025e6 10 * this list of conditions and the following disclaimer.
mbed_official 508:4f5903e025e6 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 508:4f5903e025e6 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 508:4f5903e025e6 13 * and/or other materials provided with the distribution.
mbed_official 508:4f5903e025e6 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 508:4f5903e025e6 15 * may be used to endorse or promote products derived from this software
mbed_official 508:4f5903e025e6 16 * without specific prior written permission.
mbed_official 508:4f5903e025e6 17 *
mbed_official 508:4f5903e025e6 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 508:4f5903e025e6 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 508:4f5903e025e6 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 508:4f5903e025e6 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 508:4f5903e025e6 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 508:4f5903e025e6 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 508:4f5903e025e6 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 508:4f5903e025e6 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 508:4f5903e025e6 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 508:4f5903e025e6 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 508:4f5903e025e6 28 *******************************************************************************
mbed_official 508:4f5903e025e6 29 */
mbed_official 508:4f5903e025e6 30 #include "mbed_assert.h"
mbed_official 508:4f5903e025e6 31 #include "serial_api.h"
mbed_official 508:4f5903e025e6 32
mbed_official 508:4f5903e025e6 33 #if DEVICE_SERIAL
mbed_official 508:4f5903e025e6 34
mbed_official 508:4f5903e025e6 35 #include "cmsis.h"
mbed_official 508:4f5903e025e6 36 #include "pinmap.h"
mbed_official 508:4f5903e025e6 37 #include <string.h>
mbed_official 508:4f5903e025e6 38 #include "PeripheralPins.h"
mbed_official 508:4f5903e025e6 39
mbed_official 508:4f5903e025e6 40 #define UART_NUM (5)
mbed_official 508:4f5903e025e6 41
mbed_official 508:4f5903e025e6 42 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0, 0, 0};
mbed_official 508:4f5903e025e6 43
mbed_official 508:4f5903e025e6 44 static uart_irq_handler irq_handler;
mbed_official 508:4f5903e025e6 45
mbed_official 508:4f5903e025e6 46 UART_HandleTypeDef UartHandle;
mbed_official 508:4f5903e025e6 47
mbed_official 508:4f5903e025e6 48 int stdio_uart_inited = 0;
mbed_official 508:4f5903e025e6 49 serial_t stdio_uart;
mbed_official 508:4f5903e025e6 50
mbed_official 508:4f5903e025e6 51 static void init_uart(serial_t *obj)
mbed_official 508:4f5903e025e6 52 {
mbed_official 508:4f5903e025e6 53 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 54
mbed_official 508:4f5903e025e6 55 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 508:4f5903e025e6 56 UartHandle.Init.WordLength = obj->databits;
mbed_official 508:4f5903e025e6 57 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 508:4f5903e025e6 58 UartHandle.Init.Parity = obj->parity;
mbed_official 508:4f5903e025e6 59 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 508:4f5903e025e6 60
mbed_official 508:4f5903e025e6 61 if (obj->pin_rx == NC) {
mbed_official 508:4f5903e025e6 62 UartHandle.Init.Mode = UART_MODE_TX;
mbed_official 508:4f5903e025e6 63 } else if (obj->pin_tx == NC) {
mbed_official 508:4f5903e025e6 64 UartHandle.Init.Mode = UART_MODE_RX;
mbed_official 508:4f5903e025e6 65 } else {
mbed_official 508:4f5903e025e6 66 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 508:4f5903e025e6 67 }
mbed_official 508:4f5903e025e6 68
mbed_official 508:4f5903e025e6 69 // Disable the reception overrun detection
mbed_official 508:4f5903e025e6 70 UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT;
mbed_official 508:4f5903e025e6 71 UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE;
mbed_official 508:4f5903e025e6 72
mbed_official 508:4f5903e025e6 73 HAL_UART_Init(&UartHandle);
mbed_official 508:4f5903e025e6 74 }
mbed_official 508:4f5903e025e6 75
mbed_official 508:4f5903e025e6 76 void serial_init(serial_t *obj, PinName tx, PinName rx)
mbed_official 508:4f5903e025e6 77 {
mbed_official 508:4f5903e025e6 78 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 508:4f5903e025e6 79 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 508:4f5903e025e6 80 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 508:4f5903e025e6 81
mbed_official 508:4f5903e025e6 82 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 508:4f5903e025e6 83 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 508:4f5903e025e6 84 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 508:4f5903e025e6 85
mbed_official 508:4f5903e025e6 86 // Enable USART clock + switch to SystemClock
mbed_official 508:4f5903e025e6 87 if (obj->uart == UART_1) {
mbed_official 508:4f5903e025e6 88 __USART1_CLK_ENABLE();
mbed_official 508:4f5903e025e6 89 __HAL_RCC_USART1_CONFIG(RCC_USART1CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 90 obj->index = 0;
mbed_official 508:4f5903e025e6 91 }
mbed_official 508:4f5903e025e6 92 if (obj->uart == UART_2) {
mbed_official 508:4f5903e025e6 93 __USART2_CLK_ENABLE();
mbed_official 508:4f5903e025e6 94 __HAL_RCC_USART2_CONFIG(RCC_USART2CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 95 obj->index = 1;
mbed_official 508:4f5903e025e6 96 }
mbed_official 632:7687fb9c4f91 97 #if defined(UART3_BASE)
mbed_official 508:4f5903e025e6 98 if (obj->uart == UART_3) {
mbed_official 508:4f5903e025e6 99 __USART3_CLK_ENABLE();
mbed_official 508:4f5903e025e6 100 __HAL_RCC_USART3_CONFIG(RCC_USART3CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 101 obj->index = 2;
mbed_official 508:4f5903e025e6 102 }
mbed_official 632:7687fb9c4f91 103 #endif
mbed_official 508:4f5903e025e6 104 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 105 if (obj->uart == UART_4) {
mbed_official 508:4f5903e025e6 106 __UART4_CLK_ENABLE();
mbed_official 508:4f5903e025e6 107 __HAL_RCC_UART4_CONFIG(RCC_UART4CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 108 obj->index = 3;
mbed_official 508:4f5903e025e6 109 }
mbed_official 508:4f5903e025e6 110 #endif
mbed_official 508:4f5903e025e6 111 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 112 if (obj->uart == UART_5) {
mbed_official 508:4f5903e025e6 113 __UART5_CLK_ENABLE();
mbed_official 508:4f5903e025e6 114 __HAL_RCC_UART5_CONFIG(RCC_UART5CLKSOURCE_SYSCLK);
mbed_official 508:4f5903e025e6 115 obj->index = 4;
mbed_official 508:4f5903e025e6 116 }
mbed_official 508:4f5903e025e6 117 #endif
mbed_official 508:4f5903e025e6 118
mbed_official 508:4f5903e025e6 119 // Configure the UART pins
mbed_official 508:4f5903e025e6 120 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 508:4f5903e025e6 121 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 508:4f5903e025e6 122 if (tx != NC) {
mbed_official 508:4f5903e025e6 123 pin_mode(tx, PullUp);
mbed_official 508:4f5903e025e6 124 }
mbed_official 508:4f5903e025e6 125 if (rx != NC) {
mbed_official 508:4f5903e025e6 126 pin_mode(rx, PullUp);
mbed_official 508:4f5903e025e6 127 }
mbed_official 508:4f5903e025e6 128
mbed_official 508:4f5903e025e6 129 // Configure UART
mbed_official 508:4f5903e025e6 130 obj->baudrate = 9600;
mbed_official 508:4f5903e025e6 131 obj->databits = UART_WORDLENGTH_8B;
mbed_official 508:4f5903e025e6 132 obj->stopbits = UART_STOPBITS_1;
mbed_official 508:4f5903e025e6 133 obj->parity = UART_PARITY_NONE;
mbed_official 508:4f5903e025e6 134
mbed_official 508:4f5903e025e6 135 obj->pin_tx = tx;
mbed_official 508:4f5903e025e6 136 obj->pin_rx = rx;
mbed_official 508:4f5903e025e6 137
mbed_official 508:4f5903e025e6 138 init_uart(obj);
mbed_official 508:4f5903e025e6 139
mbed_official 508:4f5903e025e6 140 // For stdio management
mbed_official 508:4f5903e025e6 141 if (obj->uart == STDIO_UART) {
mbed_official 508:4f5903e025e6 142 stdio_uart_inited = 1;
mbed_official 508:4f5903e025e6 143 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 508:4f5903e025e6 144 }
mbed_official 508:4f5903e025e6 145 }
mbed_official 508:4f5903e025e6 146
mbed_official 508:4f5903e025e6 147 void serial_free(serial_t *obj)
mbed_official 508:4f5903e025e6 148 {
mbed_official 508:4f5903e025e6 149 // Reset UART and disable clock
mbed_official 508:4f5903e025e6 150 if (obj->uart == UART_1) {
mbed_official 508:4f5903e025e6 151 __USART1_FORCE_RESET();
mbed_official 508:4f5903e025e6 152 __USART1_RELEASE_RESET();
mbed_official 508:4f5903e025e6 153 __USART1_CLK_DISABLE();
mbed_official 508:4f5903e025e6 154 }
mbed_official 508:4f5903e025e6 155 if (obj->uart == UART_2) {
mbed_official 508:4f5903e025e6 156 __USART2_FORCE_RESET();
mbed_official 508:4f5903e025e6 157 __USART2_RELEASE_RESET();
mbed_official 508:4f5903e025e6 158 __USART2_CLK_DISABLE();
mbed_official 508:4f5903e025e6 159 }
mbed_official 632:7687fb9c4f91 160 #if defined(UART3_BASE)
mbed_official 508:4f5903e025e6 161 if (obj->uart == UART_3) {
mbed_official 508:4f5903e025e6 162 __USART3_FORCE_RESET();
mbed_official 508:4f5903e025e6 163 __USART3_RELEASE_RESET();
mbed_official 508:4f5903e025e6 164 __USART3_CLK_DISABLE();
mbed_official 508:4f5903e025e6 165 }
mbed_official 632:7687fb9c4f91 166 #endif
mbed_official 508:4f5903e025e6 167 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 168 if (obj->uart == UART_4) {
mbed_official 508:4f5903e025e6 169 __UART4_FORCE_RESET();
mbed_official 508:4f5903e025e6 170 __UART4_RELEASE_RESET();
mbed_official 508:4f5903e025e6 171 __UART4_CLK_DISABLE();
mbed_official 508:4f5903e025e6 172 }
mbed_official 508:4f5903e025e6 173 #endif
mbed_official 508:4f5903e025e6 174 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 175 if (obj->uart == UART_5) {
mbed_official 508:4f5903e025e6 176 __UART5_FORCE_RESET();
mbed_official 508:4f5903e025e6 177 __UART5_RELEASE_RESET();
mbed_official 508:4f5903e025e6 178 __UART5_CLK_DISABLE();
mbed_official 508:4f5903e025e6 179 }
mbed_official 508:4f5903e025e6 180 #endif
mbed_official 508:4f5903e025e6 181
mbed_official 508:4f5903e025e6 182 // Configure GPIOs
mbed_official 508:4f5903e025e6 183 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 508:4f5903e025e6 184 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 508:4f5903e025e6 185
mbed_official 508:4f5903e025e6 186 serial_irq_ids[obj->index] = 0;
mbed_official 508:4f5903e025e6 187 }
mbed_official 508:4f5903e025e6 188
mbed_official 508:4f5903e025e6 189 void serial_baud(serial_t *obj, int baudrate)
mbed_official 508:4f5903e025e6 190 {
mbed_official 508:4f5903e025e6 191 obj->baudrate = baudrate;
mbed_official 508:4f5903e025e6 192 init_uart(obj);
mbed_official 508:4f5903e025e6 193 }
mbed_official 508:4f5903e025e6 194
mbed_official 508:4f5903e025e6 195 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
mbed_official 508:4f5903e025e6 196 {
mbed_official 508:4f5903e025e6 197 if (data_bits == 9) {
mbed_official 508:4f5903e025e6 198 obj->databits = UART_WORDLENGTH_9B;
mbed_official 508:4f5903e025e6 199 } else {
mbed_official 508:4f5903e025e6 200 obj->databits = UART_WORDLENGTH_8B;
mbed_official 508:4f5903e025e6 201 }
mbed_official 508:4f5903e025e6 202
mbed_official 508:4f5903e025e6 203 switch (parity) {
mbed_official 508:4f5903e025e6 204 case ParityOdd:
mbed_official 508:4f5903e025e6 205 case ParityForced0:
mbed_official 508:4f5903e025e6 206 obj->parity = UART_PARITY_ODD;
mbed_official 508:4f5903e025e6 207 break;
mbed_official 508:4f5903e025e6 208 case ParityEven:
mbed_official 508:4f5903e025e6 209 case ParityForced1:
mbed_official 508:4f5903e025e6 210 obj->parity = UART_PARITY_EVEN;
mbed_official 508:4f5903e025e6 211 break;
mbed_official 508:4f5903e025e6 212 default: // ParityNone
mbed_official 508:4f5903e025e6 213 obj->parity = UART_PARITY_NONE;
mbed_official 508:4f5903e025e6 214 break;
mbed_official 508:4f5903e025e6 215 }
mbed_official 508:4f5903e025e6 216
mbed_official 508:4f5903e025e6 217 if (stop_bits == 2) {
mbed_official 508:4f5903e025e6 218 obj->stopbits = UART_STOPBITS_2;
mbed_official 508:4f5903e025e6 219 } else {
mbed_official 508:4f5903e025e6 220 obj->stopbits = UART_STOPBITS_1;
mbed_official 508:4f5903e025e6 221 }
mbed_official 508:4f5903e025e6 222
mbed_official 508:4f5903e025e6 223 init_uart(obj);
mbed_official 508:4f5903e025e6 224 }
mbed_official 508:4f5903e025e6 225
mbed_official 508:4f5903e025e6 226 /******************************************************************************
mbed_official 508:4f5903e025e6 227 * INTERRUPTS HANDLING
mbed_official 508:4f5903e025e6 228 ******************************************************************************/
mbed_official 508:4f5903e025e6 229
mbed_official 508:4f5903e025e6 230 static void uart_irq(UARTName name, int id)
mbed_official 508:4f5903e025e6 231 {
mbed_official 508:4f5903e025e6 232 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 508:4f5903e025e6 233 if (serial_irq_ids[id] != 0) {
mbed_official 508:4f5903e025e6 234 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 508:4f5903e025e6 235 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 508:4f5903e025e6 236 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 508:4f5903e025e6 237 }
mbed_official 508:4f5903e025e6 238 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 508:4f5903e025e6 239 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 508:4f5903e025e6 240 volatile uint32_t tmpval = UartHandle.Instance->RDR; // Clear RXNE bit
mbed_official 508:4f5903e025e6 241 }
mbed_official 508:4f5903e025e6 242 }
mbed_official 508:4f5903e025e6 243 }
mbed_official 508:4f5903e025e6 244
mbed_official 508:4f5903e025e6 245 static void uart1_irq(void)
mbed_official 508:4f5903e025e6 246 {
mbed_official 508:4f5903e025e6 247 uart_irq(UART_1, 0);
mbed_official 508:4f5903e025e6 248 }
mbed_official 508:4f5903e025e6 249
mbed_official 508:4f5903e025e6 250 static void uart2_irq(void)
mbed_official 508:4f5903e025e6 251 {
mbed_official 508:4f5903e025e6 252 uart_irq(UART_2, 1);
mbed_official 508:4f5903e025e6 253 }
mbed_official 508:4f5903e025e6 254
mbed_official 632:7687fb9c4f91 255 #if defined(UART3_BASE)
mbed_official 508:4f5903e025e6 256 static void uart3_irq(void)
mbed_official 508:4f5903e025e6 257 {
mbed_official 508:4f5903e025e6 258 uart_irq(UART_3, 2);
mbed_official 508:4f5903e025e6 259 }
mbed_official 632:7687fb9c4f91 260 #endif
mbed_official 508:4f5903e025e6 261
mbed_official 508:4f5903e025e6 262 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 263 static void uart4_irq(void)
mbed_official 508:4f5903e025e6 264 {
mbed_official 508:4f5903e025e6 265 uart_irq(UART_4, 3);
mbed_official 508:4f5903e025e6 266 }
mbed_official 508:4f5903e025e6 267 #endif
mbed_official 508:4f5903e025e6 268
mbed_official 508:4f5903e025e6 269 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 270 static void uart5_irq(void)
mbed_official 508:4f5903e025e6 271 {
mbed_official 508:4f5903e025e6 272 uart_irq(UART_5, 4);
mbed_official 508:4f5903e025e6 273 }
mbed_official 508:4f5903e025e6 274 #endif
mbed_official 508:4f5903e025e6 275
mbed_official 508:4f5903e025e6 276 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
mbed_official 508:4f5903e025e6 277 {
mbed_official 508:4f5903e025e6 278 irq_handler = handler;
mbed_official 508:4f5903e025e6 279 serial_irq_ids[obj->index] = id;
mbed_official 508:4f5903e025e6 280 }
mbed_official 508:4f5903e025e6 281
mbed_official 508:4f5903e025e6 282 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
mbed_official 508:4f5903e025e6 283 {
mbed_official 508:4f5903e025e6 284 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 508:4f5903e025e6 285 uint32_t vector = 0;
mbed_official 508:4f5903e025e6 286
mbed_official 508:4f5903e025e6 287 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 288
mbed_official 508:4f5903e025e6 289 if (obj->uart == UART_1) {
mbed_official 508:4f5903e025e6 290 irq_n = USART1_IRQn;
mbed_official 508:4f5903e025e6 291 vector = (uint32_t)&uart1_irq;
mbed_official 508:4f5903e025e6 292 }
mbed_official 508:4f5903e025e6 293
mbed_official 508:4f5903e025e6 294 if (obj->uart == UART_2) {
mbed_official 508:4f5903e025e6 295 irq_n = USART2_IRQn;
mbed_official 508:4f5903e025e6 296 vector = (uint32_t)&uart2_irq;
mbed_official 508:4f5903e025e6 297 }
mbed_official 508:4f5903e025e6 298
mbed_official 632:7687fb9c4f91 299 #if defined(UART3_BASE)
mbed_official 508:4f5903e025e6 300 if (obj->uart == UART_3) {
mbed_official 508:4f5903e025e6 301 irq_n = USART3_IRQn;
mbed_official 508:4f5903e025e6 302 vector = (uint32_t)&uart3_irq;
mbed_official 508:4f5903e025e6 303 }
mbed_official 632:7687fb9c4f91 304 #endif
mbed_official 508:4f5903e025e6 305
mbed_official 508:4f5903e025e6 306 #if defined(UART4_BASE)
mbed_official 508:4f5903e025e6 307 if (obj->uart == UART_4) {
mbed_official 508:4f5903e025e6 308 irq_n = UART4_IRQn;
mbed_official 508:4f5903e025e6 309 vector = (uint32_t)&uart4_irq;
mbed_official 508:4f5903e025e6 310 }
mbed_official 508:4f5903e025e6 311 #endif
mbed_official 508:4f5903e025e6 312
mbed_official 508:4f5903e025e6 313 #if defined(UART5_BASE)
mbed_official 508:4f5903e025e6 314 if (obj->uart == UART_5) {
mbed_official 508:4f5903e025e6 315 irq_n = UART5_IRQn;
mbed_official 508:4f5903e025e6 316 vector = (uint32_t)&uart5_irq;
mbed_official 508:4f5903e025e6 317 }
mbed_official 508:4f5903e025e6 318 #endif
mbed_official 508:4f5903e025e6 319
mbed_official 508:4f5903e025e6 320 if (enable) {
mbed_official 508:4f5903e025e6 321
mbed_official 508:4f5903e025e6 322 if (irq == RxIrq) {
mbed_official 508:4f5903e025e6 323 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 508:4f5903e025e6 324 } else { // TxIrq
mbed_official 508:4f5903e025e6 325 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 508:4f5903e025e6 326 }
mbed_official 508:4f5903e025e6 327
mbed_official 508:4f5903e025e6 328 NVIC_SetVector(irq_n, vector);
mbed_official 508:4f5903e025e6 329 NVIC_EnableIRQ(irq_n);
mbed_official 508:4f5903e025e6 330
mbed_official 508:4f5903e025e6 331 } else { // disable
mbed_official 508:4f5903e025e6 332
mbed_official 508:4f5903e025e6 333 int all_disabled = 0;
mbed_official 508:4f5903e025e6 334
mbed_official 508:4f5903e025e6 335 if (irq == RxIrq) {
mbed_official 508:4f5903e025e6 336 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 508:4f5903e025e6 337 // Check if TxIrq is disabled too
mbed_official 508:4f5903e025e6 338 if ((UartHandle.Instance->CR1 & USART_CR1_TCIE) == 0) all_disabled = 1;
mbed_official 508:4f5903e025e6 339 } else { // TxIrq
mbed_official 508:4f5903e025e6 340 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 508:4f5903e025e6 341 // Check if RxIrq is disabled too
mbed_official 508:4f5903e025e6 342 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 508:4f5903e025e6 343 }
mbed_official 508:4f5903e025e6 344
mbed_official 508:4f5903e025e6 345 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 508:4f5903e025e6 346
mbed_official 508:4f5903e025e6 347 }
mbed_official 508:4f5903e025e6 348 }
mbed_official 508:4f5903e025e6 349
mbed_official 508:4f5903e025e6 350 /******************************************************************************
mbed_official 508:4f5903e025e6 351 * READ/WRITE
mbed_official 508:4f5903e025e6 352 ******************************************************************************/
mbed_official 508:4f5903e025e6 353
mbed_official 508:4f5903e025e6 354 int serial_getc(serial_t *obj)
mbed_official 508:4f5903e025e6 355 {
mbed_official 508:4f5903e025e6 356 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 357 while (!serial_readable(obj));
mbed_official 508:4f5903e025e6 358 if (obj->databits == UART_WORDLENGTH_8B) {
mbed_official 508:4f5903e025e6 359 return (int)(uart->RDR & (uint8_t)0xFF);
mbed_official 508:4f5903e025e6 360 } else {
mbed_official 508:4f5903e025e6 361 return (int)(uart->RDR & (uint16_t)0x1FF);
mbed_official 508:4f5903e025e6 362 }
mbed_official 508:4f5903e025e6 363 }
mbed_official 508:4f5903e025e6 364
mbed_official 508:4f5903e025e6 365 void serial_putc(serial_t *obj, int c)
mbed_official 508:4f5903e025e6 366 {
mbed_official 508:4f5903e025e6 367 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 368 while (!serial_writable(obj));
mbed_official 508:4f5903e025e6 369 if (obj->databits == UART_WORDLENGTH_8B) {
mbed_official 508:4f5903e025e6 370 uart->TDR = (uint8_t)(c & (uint8_t)0xFF);
mbed_official 508:4f5903e025e6 371 } else {
mbed_official 508:4f5903e025e6 372 uart->TDR = (uint16_t)(c & (uint16_t)0x1FF);
mbed_official 508:4f5903e025e6 373 }
mbed_official 508:4f5903e025e6 374 }
mbed_official 508:4f5903e025e6 375
mbed_official 508:4f5903e025e6 376 int serial_readable(serial_t *obj)
mbed_official 508:4f5903e025e6 377 {
mbed_official 508:4f5903e025e6 378 int status;
mbed_official 508:4f5903e025e6 379 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 380 // Check if data is received
mbed_official 508:4f5903e025e6 381 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 508:4f5903e025e6 382 return status;
mbed_official 508:4f5903e025e6 383 }
mbed_official 508:4f5903e025e6 384
mbed_official 508:4f5903e025e6 385 int serial_writable(serial_t *obj)
mbed_official 508:4f5903e025e6 386 {
mbed_official 508:4f5903e025e6 387 int status;
mbed_official 508:4f5903e025e6 388 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 389 // Check if data is transmitted
mbed_official 508:4f5903e025e6 390 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 508:4f5903e025e6 391 return status;
mbed_official 508:4f5903e025e6 392 }
mbed_official 508:4f5903e025e6 393
mbed_official 508:4f5903e025e6 394 void serial_clear(serial_t *obj)
mbed_official 508:4f5903e025e6 395 {
mbed_official 508:4f5903e025e6 396 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 397 __HAL_UART_CLEAR_IT(&UartHandle, UART_FLAG_TC);
mbed_official 508:4f5903e025e6 398 __HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
mbed_official 508:4f5903e025e6 399 }
mbed_official 508:4f5903e025e6 400
mbed_official 508:4f5903e025e6 401 void serial_pinout_tx(PinName tx)
mbed_official 508:4f5903e025e6 402 {
mbed_official 508:4f5903e025e6 403 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 508:4f5903e025e6 404 }
mbed_official 508:4f5903e025e6 405
mbed_official 508:4f5903e025e6 406 void serial_break_set(serial_t *obj)
mbed_official 508:4f5903e025e6 407 {
mbed_official 508:4f5903e025e6 408 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 508:4f5903e025e6 409 HAL_LIN_SendBreak(&UartHandle);
mbed_official 508:4f5903e025e6 410 }
mbed_official 508:4f5903e025e6 411
mbed_official 508:4f5903e025e6 412 void serial_break_clear(serial_t *obj)
mbed_official 508:4f5903e025e6 413 {
mbed_official 508:4f5903e025e6 414 }
mbed_official 508:4f5903e025e6 415
mbed_official 508:4f5903e025e6 416 #endif