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mbed library sources

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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_DISCO_F407VG/serial_api.c@268:402bcc0c870b, 2014-07-29 (annotated)

Committer:
mbed_official
Date:
Tue Jul 29 19:00:07 2014 +0100
Revision:
268:402bcc0c870b
Parent:
242:7074e42da0b2 
Synchronized with git revision 490d1a6606b3138f165c5edf2f2370ca616587c0



Full URL: https://github.com/mbedmicro/mbed/commit/490d1a6606b3138f165c5edf2f2370ca616587c0/



[LPC1114] Sleep fix + some device.h settings

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 133:d4dda5c437f0 1 /* mbed Microcontroller Library
mbed_official 133:d4dda5c437f0 2 *******************************************************************************
mbed_official 133:d4dda5c437f0 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 133:d4dda5c437f0 4 * All rights reserved.
mbed_official 133:d4dda5c437f0 5 *
mbed_official 133:d4dda5c437f0 6 * Redistribution and use in source and binary forms, with or without
mbed_official 133:d4dda5c437f0 7 * modification, are permitted provided that the following conditions are met:
mbed_official 133:d4dda5c437f0 8 *
mbed_official 133:d4dda5c437f0 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 133:d4dda5c437f0 10 * this list of conditions and the following disclaimer.
mbed_official 133:d4dda5c437f0 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 133:d4dda5c437f0 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 133:d4dda5c437f0 13 * and/or other materials provided with the distribution.
mbed_official 133:d4dda5c437f0 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 133:d4dda5c437f0 15 * may be used to endorse or promote products derived from this software
mbed_official 133:d4dda5c437f0 16 * without specific prior written permission.
mbed_official 133:d4dda5c437f0 17 *
mbed_official 133:d4dda5c437f0 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 133:d4dda5c437f0 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 133:d4dda5c437f0 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 133:d4dda5c437f0 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 133:d4dda5c437f0 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 133:d4dda5c437f0 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 133:d4dda5c437f0 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 133:d4dda5c437f0 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 133:d4dda5c437f0 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 133:d4dda5c437f0 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 133:d4dda5c437f0 28 *******************************************************************************
mbed_official 133:d4dda5c437f0 29 */
mbed_official 242:7074e42da0b2 30 #include "mbed_assert.h"
mbed_official 133:d4dda5c437f0 31 #include "serial_api.h"
mbed_official 242:7074e42da0b2 32
mbed_official 242:7074e42da0b2 33 #if DEVICE_SERIAL
mbed_official 242:7074e42da0b2 34
mbed_official 133:d4dda5c437f0 35 #include "cmsis.h"
mbed_official 133:d4dda5c437f0 36 #include "pinmap.h"
mbed_official 133:d4dda5c437f0 37 #include <string.h>
mbed_official 133:d4dda5c437f0 38
mbed_official 133:d4dda5c437f0 39 static const PinMap PinMap_UART_TX[] = {
mbed_official 133:d4dda5c437f0 40 {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
mbed_official 133:d4dda5c437f0 41 {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 133:d4dda5c437f0 42 {PA_11, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 133:d4dda5c437f0 43 {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 133:d4dda5c437f0 44 {PC_6, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 133:d4dda5c437f0 45 {NC, NC, 0}
mbed_official 133:d4dda5c437f0 46 };
mbed_official 133:d4dda5c437f0 47
mbed_official 133:d4dda5c437f0 48 static const PinMap PinMap_UART_RX[] = {
mbed_official 133:d4dda5c437f0 49 {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART2)},
mbed_official 133:d4dda5c437f0 50 {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 133:d4dda5c437f0 51 {PA_12, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 133:d4dda5c437f0 52 {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF7_USART1)},
mbed_official 133:d4dda5c437f0 53 {PC_7, UART_6, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF8_USART6)},
mbed_official 133:d4dda5c437f0 54 {NC, NC, 0}
mbed_official 133:d4dda5c437f0 55 };
mbed_official 133:d4dda5c437f0 56
mbed_official 133:d4dda5c437f0 57 #define UART_NUM (3)
mbed_official 133:d4dda5c437f0 58
mbed_official 242:7074e42da0b2 59 static uint32_t serial_irq_ids[UART_NUM] = {0, 0, 0};
mbed_official 133:d4dda5c437f0 60
mbed_official 133:d4dda5c437f0 61 static uart_irq_handler irq_handler;
mbed_official 133:d4dda5c437f0 62
mbed_official 133:d4dda5c437f0 63 UART_HandleTypeDef UartHandle;
mbed_official 133:d4dda5c437f0 64
mbed_official 133:d4dda5c437f0 65 int stdio_uart_inited = 0;
mbed_official 133:d4dda5c437f0 66 serial_t stdio_uart;
mbed_official 133:d4dda5c437f0 67
mbed_official 133:d4dda5c437f0 68 static void init_uart(serial_t *obj) {
mbed_official 133:d4dda5c437f0 69 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 70
mbed_official 133:d4dda5c437f0 71 UartHandle.Init.BaudRate = obj->baudrate;
mbed_official 133:d4dda5c437f0 72 UartHandle.Init.WordLength = obj->databits;
mbed_official 133:d4dda5c437f0 73 UartHandle.Init.StopBits = obj->stopbits;
mbed_official 133:d4dda5c437f0 74 UartHandle.Init.Parity = obj->parity;
mbed_official 133:d4dda5c437f0 75 UartHandle.Init.HwFlowCtl = UART_HWCONTROL_NONE;
mbed_official 133:d4dda5c437f0 76 UartHandle.Init.Mode = UART_MODE_TX_RX;
mbed_official 133:d4dda5c437f0 77
mbed_official 227:7bd0639b8911 78 HAL_UART_Init(&UartHandle);
mbed_official 133:d4dda5c437f0 79 }
mbed_official 133:d4dda5c437f0 80
mbed_official 227:7bd0639b8911 81 void serial_init(serial_t *obj, PinName tx, PinName rx) {
mbed_official 133:d4dda5c437f0 82 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 133:d4dda5c437f0 83 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 133:d4dda5c437f0 84 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 133:d4dda5c437f0 85
mbed_official 133:d4dda5c437f0 86 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 133:d4dda5c437f0 87 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 88 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 133:d4dda5c437f0 89
mbed_official 133:d4dda5c437f0 90 // Enable USART clock
mbed_official 133:d4dda5c437f0 91 if (obj->uart == UART_1) {
mbed_official 133:d4dda5c437f0 92 __USART1_CLK_ENABLE();
mbed_official 242:7074e42da0b2 93 obj->index = 0;
mbed_official 133:d4dda5c437f0 94 }
mbed_official 133:d4dda5c437f0 95 if (obj->uart == UART_2) {
mbed_official 133:d4dda5c437f0 96 __USART2_CLK_ENABLE();
mbed_official 242:7074e42da0b2 97 obj->index = 1;
mbed_official 133:d4dda5c437f0 98 }
mbed_official 133:d4dda5c437f0 99 if (obj->uart == UART_6) {
mbed_official 133:d4dda5c437f0 100 __USART6_CLK_ENABLE();
mbed_official 242:7074e42da0b2 101 obj->index = 2;
mbed_official 133:d4dda5c437f0 102 }
mbed_official 133:d4dda5c437f0 103
mbed_official 133:d4dda5c437f0 104 // Configure the UART pins
mbed_official 133:d4dda5c437f0 105 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 133:d4dda5c437f0 106 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 133:d4dda5c437f0 107 pin_mode(tx, PullUp);
mbed_official 133:d4dda5c437f0 108 pin_mode(rx, PullUp);
mbed_official 133:d4dda5c437f0 109
mbed_official 133:d4dda5c437f0 110 // Configure UART
mbed_official 133:d4dda5c437f0 111 obj->baudrate = 9600;
mbed_official 133:d4dda5c437f0 112 obj->databits = UART_WORDLENGTH_8B;
mbed_official 133:d4dda5c437f0 113 obj->stopbits = UART_STOPBITS_1;
mbed_official 227:7bd0639b8911 114 obj->parity = UART_PARITY_NONE;
mbed_official 133:d4dda5c437f0 115
mbed_official 242:7074e42da0b2 116 obj->pin_tx = tx;
mbed_official 242:7074e42da0b2 117 obj->pin_rx = rx;
mbed_official 133:d4dda5c437f0 118
mbed_official 242:7074e42da0b2 119 init_uart(obj);
mbed_official 133:d4dda5c437f0 120
mbed_official 133:d4dda5c437f0 121 // For stdio management
mbed_official 133:d4dda5c437f0 122 if (obj->uart == STDIO_UART) {
mbed_official 133:d4dda5c437f0 123 stdio_uart_inited = 1;
mbed_official 133:d4dda5c437f0 124 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 133:d4dda5c437f0 125 }
mbed_official 133:d4dda5c437f0 126
mbed_official 133:d4dda5c437f0 127 }
mbed_official 133:d4dda5c437f0 128
mbed_official 133:d4dda5c437f0 129 void serial_free(serial_t *obj) {
mbed_official 242:7074e42da0b2 130 // Reset UART and disable clock
mbed_official 242:7074e42da0b2 131 if (obj->uart == UART_1) {
mbed_official 242:7074e42da0b2 132 __USART1_FORCE_RESET();
mbed_official 242:7074e42da0b2 133 __USART1_RELEASE_RESET();
mbed_official 242:7074e42da0b2 134 __USART1_CLK_DISABLE();
mbed_official 242:7074e42da0b2 135 }
mbed_official 242:7074e42da0b2 136 if (obj->uart == UART_2) {
mbed_official 242:7074e42da0b2 137 __USART2_FORCE_RESET();
mbed_official 242:7074e42da0b2 138 __USART2_RELEASE_RESET();
mbed_official 242:7074e42da0b2 139 __USART2_CLK_DISABLE();
mbed_official 242:7074e42da0b2 140 }
mbed_official 242:7074e42da0b2 141 if (obj->uart == UART_6) {
mbed_official 242:7074e42da0b2 142 __USART6_FORCE_RESET();
mbed_official 242:7074e42da0b2 143 __USART6_RELEASE_RESET();
mbed_official 242:7074e42da0b2 144 __USART6_CLK_DISABLE();
mbed_official 242:7074e42da0b2 145 }
mbed_official 242:7074e42da0b2 146
mbed_official 242:7074e42da0b2 147 // Configure GPIOs
mbed_official 242:7074e42da0b2 148 pin_function(obj->pin_tx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 242:7074e42da0b2 149 pin_function(obj->pin_rx, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
mbed_official 242:7074e42da0b2 150
mbed_official 133:d4dda5c437f0 151 serial_irq_ids[obj->index] = 0;
mbed_official 133:d4dda5c437f0 152 }
mbed_official 133:d4dda5c437f0 153
mbed_official 133:d4dda5c437f0 154 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 133:d4dda5c437f0 155 obj->baudrate = baudrate;
mbed_official 133:d4dda5c437f0 156 init_uart(obj);
mbed_official 133:d4dda5c437f0 157 }
mbed_official 133:d4dda5c437f0 158
mbed_official 133:d4dda5c437f0 159 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 133:d4dda5c437f0 160 if (data_bits == 8) {
mbed_official 133:d4dda5c437f0 161 obj->databits = UART_WORDLENGTH_8B;
mbed_official 242:7074e42da0b2 162 } else {
mbed_official 133:d4dda5c437f0 163 obj->databits = UART_WORDLENGTH_9B;
mbed_official 133:d4dda5c437f0 164 }
mbed_official 133:d4dda5c437f0 165
mbed_official 133:d4dda5c437f0 166 switch (parity) {
mbed_official 133:d4dda5c437f0 167 case ParityOdd:
mbed_official 133:d4dda5c437f0 168 case ParityForced0:
mbed_official 133:d4dda5c437f0 169 obj->parity = UART_PARITY_ODD;
mbed_official 133:d4dda5c437f0 170 break;
mbed_official 133:d4dda5c437f0 171 case ParityEven:
mbed_official 227:7bd0639b8911 172 case ParityForced1:
mbed_official 133:d4dda5c437f0 173 obj->parity = UART_PARITY_EVEN;
mbed_official 133:d4dda5c437f0 174 break;
mbed_official 133:d4dda5c437f0 175 default: // ParityNone
mbed_official 133:d4dda5c437f0 176 obj->parity = UART_PARITY_NONE;
mbed_official 133:d4dda5c437f0 177 break;
mbed_official 133:d4dda5c437f0 178 }
mbed_official 133:d4dda5c437f0 179
mbed_official 133:d4dda5c437f0 180 if (stop_bits == 2) {
mbed_official 133:d4dda5c437f0 181 obj->stopbits = UART_STOPBITS_2;
mbed_official 242:7074e42da0b2 182 } else {
mbed_official 133:d4dda5c437f0 183 obj->stopbits = UART_STOPBITS_1;
mbed_official 133:d4dda5c437f0 184 }
mbed_official 133:d4dda5c437f0 185
mbed_official 133:d4dda5c437f0 186 init_uart(obj);
mbed_official 133:d4dda5c437f0 187 }
mbed_official 133:d4dda5c437f0 188
mbed_official 133:d4dda5c437f0 189 /******************************************************************************
mbed_official 133:d4dda5c437f0 190 * INTERRUPTS HANDLING
mbed_official 133:d4dda5c437f0 191 ******************************************************************************/
mbed_official 133:d4dda5c437f0 192
mbed_official 133:d4dda5c437f0 193 static void uart_irq(UARTName name, int id) {
mbed_official 133:d4dda5c437f0 194 UartHandle.Instance = (USART_TypeDef *)name;
mbed_official 133:d4dda5c437f0 195 if (serial_irq_ids[id] != 0) {
mbed_official 133:d4dda5c437f0 196 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
mbed_official 133:d4dda5c437f0 197 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 133:d4dda5c437f0 198 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TC);
mbed_official 133:d4dda5c437f0 199 }
mbed_official 133:d4dda5c437f0 200 if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) {
mbed_official 133:d4dda5c437f0 201 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 133:d4dda5c437f0 202 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 133:d4dda5c437f0 203 }
mbed_official 133:d4dda5c437f0 204 }
mbed_official 133:d4dda5c437f0 205 }
mbed_official 133:d4dda5c437f0 206
mbed_official 242:7074e42da0b2 207 static void uart1_irq(void) {
mbed_official 242:7074e42da0b2 208 uart_irq(UART_1, 0);
mbed_official 242:7074e42da0b2 209 }
mbed_official 242:7074e42da0b2 210 static void uart2_irq(void) {
mbed_official 242:7074e42da0b2 211 uart_irq(UART_2, 1);
mbed_official 242:7074e42da0b2 212 }
mbed_official 242:7074e42da0b2 213 static void uart6_irq(void) {
mbed_official 242:7074e42da0b2 214 uart_irq(UART_6, 2);
mbed_official 242:7074e42da0b2 215 }
mbed_official 133:d4dda5c437f0 216
mbed_official 133:d4dda5c437f0 217 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 133:d4dda5c437f0 218 irq_handler = handler;
mbed_official 133:d4dda5c437f0 219 serial_irq_ids[obj->index] = id;
mbed_official 133:d4dda5c437f0 220 }
mbed_official 133:d4dda5c437f0 221
mbed_official 133:d4dda5c437f0 222 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 133:d4dda5c437f0 223 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 133:d4dda5c437f0 224 uint32_t vector = 0;
mbed_official 133:d4dda5c437f0 225
mbed_official 133:d4dda5c437f0 226 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 227
mbed_official 133:d4dda5c437f0 228 if (obj->uart == UART_1) {
mbed_official 133:d4dda5c437f0 229 irq_n = USART1_IRQn;
mbed_official 133:d4dda5c437f0 230 vector = (uint32_t)&uart1_irq;
mbed_official 133:d4dda5c437f0 231 }
mbed_official 133:d4dda5c437f0 232
mbed_official 133:d4dda5c437f0 233 if (obj->uart == UART_2) {
mbed_official 133:d4dda5c437f0 234 irq_n = USART2_IRQn;
mbed_official 133:d4dda5c437f0 235 vector = (uint32_t)&uart2_irq;
mbed_official 133:d4dda5c437f0 236 }
mbed_official 133:d4dda5c437f0 237
mbed_official 133:d4dda5c437f0 238 if (obj->uart == UART_6) {
mbed_official 133:d4dda5c437f0 239 irq_n = USART6_IRQn;
mbed_official 133:d4dda5c437f0 240 vector = (uint32_t)&uart6_irq;
mbed_official 133:d4dda5c437f0 241 }
mbed_official 133:d4dda5c437f0 242
mbed_official 133:d4dda5c437f0 243 if (enable) {
mbed_official 133:d4dda5c437f0 244
mbed_official 133:d4dda5c437f0 245 if (irq == RxIrq) {
mbed_official 133:d4dda5c437f0 246 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 242:7074e42da0b2 247 } else { // TxIrq
mbed_official 133:d4dda5c437f0 248 __HAL_UART_ENABLE_IT(&UartHandle, UART_IT_TC);
mbed_official 227:7bd0639b8911 249 }
mbed_official 133:d4dda5c437f0 250
mbed_official 133:d4dda5c437f0 251 NVIC_SetVector(irq_n, vector);
mbed_official 133:d4dda5c437f0 252 NVIC_EnableIRQ(irq_n);
mbed_official 133:d4dda5c437f0 253
mbed_official 133:d4dda5c437f0 254 } else { // disable
mbed_official 133:d4dda5c437f0 255
mbed_official 133:d4dda5c437f0 256 int all_disabled = 0;
mbed_official 133:d4dda5c437f0 257
mbed_official 133:d4dda5c437f0 258 if (irq == RxIrq) {
mbed_official 133:d4dda5c437f0 259 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_RXNE);
mbed_official 133:d4dda5c437f0 260 // Check if TxIrq is disabled too
mbed_official 133:d4dda5c437f0 261 if ((UartHandle.Instance->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 242:7074e42da0b2 262 } else { // TxIrq
mbed_official 133:d4dda5c437f0 263 __HAL_UART_DISABLE_IT(&UartHandle, UART_IT_TXE);
mbed_official 133:d4dda5c437f0 264 // Check if RxIrq is disabled too
mbed_official 227:7bd0639b8911 265 if ((UartHandle.Instance->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 133:d4dda5c437f0 266 }
mbed_official 133:d4dda5c437f0 267
mbed_official 133:d4dda5c437f0 268 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 133:d4dda5c437f0 269
mbed_official 227:7bd0639b8911 270 }
mbed_official 133:d4dda5c437f0 271 }
mbed_official 133:d4dda5c437f0 272
mbed_official 133:d4dda5c437f0 273 /******************************************************************************
mbed_official 133:d4dda5c437f0 274 * READ/WRITE
mbed_official 133:d4dda5c437f0 275 ******************************************************************************/
mbed_official 133:d4dda5c437f0 276
mbed_official 133:d4dda5c437f0 277 int serial_getc(serial_t *obj) {
mbed_official 133:d4dda5c437f0 278 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 279 while (!serial_readable(obj));
mbed_official 133:d4dda5c437f0 280 return (int)(uart->DR & 0x1FF);
mbed_official 133:d4dda5c437f0 281 }
mbed_official 133:d4dda5c437f0 282
mbed_official 133:d4dda5c437f0 283 void serial_putc(serial_t *obj, int c) {
mbed_official 133:d4dda5c437f0 284 USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 285 while (!serial_writable(obj));
mbed_official 133:d4dda5c437f0 286 uart->DR = (uint32_t)(c & 0x1FF);
mbed_official 133:d4dda5c437f0 287 }
mbed_official 133:d4dda5c437f0 288
mbed_official 133:d4dda5c437f0 289 int serial_readable(serial_t *obj) {
mbed_official 133:d4dda5c437f0 290 int status;
mbed_official 133:d4dda5c437f0 291 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 292 // Check if data is received
mbed_official 133:d4dda5c437f0 293 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 133:d4dda5c437f0 294 return status;
mbed_official 133:d4dda5c437f0 295 }
mbed_official 133:d4dda5c437f0 296
mbed_official 133:d4dda5c437f0 297 int serial_writable(serial_t *obj) {
mbed_official 133:d4dda5c437f0 298 int status;
mbed_official 133:d4dda5c437f0 299 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 300 // Check if data is transmitted
mbed_official 133:d4dda5c437f0 301 status = ((__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 133:d4dda5c437f0 302 return status;
mbed_official 133:d4dda5c437f0 303 }
mbed_official 133:d4dda5c437f0 304
mbed_official 133:d4dda5c437f0 305 void serial_clear(serial_t *obj) {
mbed_official 133:d4dda5c437f0 306 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 307 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_TXE);
mbed_official 133:d4dda5c437f0 308 __HAL_UART_CLEAR_FLAG(&UartHandle, UART_FLAG_RXNE);
mbed_official 133:d4dda5c437f0 309 }
mbed_official 133:d4dda5c437f0 310
mbed_official 133:d4dda5c437f0 311 void serial_pinout_tx(PinName tx) {
mbed_official 133:d4dda5c437f0 312 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 133:d4dda5c437f0 313 }
mbed_official 133:d4dda5c437f0 314
mbed_official 133:d4dda5c437f0 315 void serial_break_set(serial_t *obj) {
mbed_official 133:d4dda5c437f0 316 UartHandle.Instance = (USART_TypeDef *)(obj->uart);
mbed_official 133:d4dda5c437f0 317 HAL_LIN_SendBreak(&UartHandle);
mbed_official 133:d4dda5c437f0 318 }
mbed_official 133:d4dda5c437f0 319
mbed_official 133:d4dda5c437f0 320 void serial_break_clear(serial_t *obj) {
mbed_official 133:d4dda5c437f0 321 }
mbed_official 242:7074e42da0b2 322
mbed_official 242:7074e42da0b2 323 #endif