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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Superseded

This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.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_NUCLEO_L152RE/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
Child:
339:40bd4701f3e2
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 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 *******************************************************************************
mbed_official 76:aeb1df146756 3 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 4 * All rights reserved.
mbed_official 76:aeb1df146756 5 *
mbed_official 76:aeb1df146756 6 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 7 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 8 *
mbed_official 76:aeb1df146756 9 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 10 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 12 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 13 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 15 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 16 * without specific prior written permission.
mbed_official 76:aeb1df146756 17 *
mbed_official 76:aeb1df146756 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 28 *******************************************************************************
mbed_official 76:aeb1df146756 29 */
mbed_official 227:7bd0639b8911 30 #include "mbed_assert.h"
mbed_official 76:aeb1df146756 31 #include "serial_api.h"
mbed_official 174:8bb9f3a33240 32
mbed_official 174:8bb9f3a33240 33 #if DEVICE_SERIAL
mbed_official 174:8bb9f3a33240 34
mbed_official 76:aeb1df146756 35 #include "cmsis.h"
mbed_official 76:aeb1df146756 36 #include "pinmap.h"
mbed_official 76:aeb1df146756 37 #include <string.h>
mbed_official 76:aeb1df146756 38
mbed_official 76:aeb1df146756 39 static const PinMap PinMap_UART_TX[] = {
mbed_official 129:0182c99221bc 40 {PA_2, UART_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART2)},
mbed_official 76:aeb1df146756 41 {PA_9, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
mbed_official 118:b44c45162f28 42 {PB_6, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
mbed_official 118:b44c45162f28 43 {PB_10, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
mbed_official 174:8bb9f3a33240 44 // {PC_10, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
mbed_official 129:0182c99221bc 45 {PC_10, UART_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART4)},
mbed_official 129:0182c99221bc 46 {PC_12, UART_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART5)},
mbed_official 76:aeb1df146756 47 {NC, NC, 0}
mbed_official 76:aeb1df146756 48 };
mbed_official 76:aeb1df146756 49
mbed_official 76:aeb1df146756 50 static const PinMap PinMap_UART_RX[] = {
mbed_official 129:0182c99221bc 51 {PA_3, UART_2, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART2)},
mbed_official 76:aeb1df146756 52 {PA_10, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
mbed_official 129:0182c99221bc 53 {PB_7, UART_1, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART1)},
mbed_official 118:b44c45162f28 54 {PB_11, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
mbed_official 174:8bb9f3a33240 55 // {PC_11, UART_3, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_USART3)},
mbed_official 118:b44c45162f28 56 {PC_11, UART_4, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART4)},
mbed_official 129:0182c99221bc 57 {PD_2, UART_5, STM_PIN_DATA(GPIO_Mode_AF, GPIO_OType_PP, GPIO_PuPd_UP, GPIO_AF_UART5)},
mbed_official 76:aeb1df146756 58 {NC, NC, 0}
mbed_official 76:aeb1df146756 59 };
mbed_official 76:aeb1df146756 60
mbed_official 118:b44c45162f28 61 #define UART_NUM (5)
mbed_official 76:aeb1df146756 62
mbed_official 76:aeb1df146756 63 static uint32_t serial_irq_ids[UART_NUM] = {0};
mbed_official 76:aeb1df146756 64
mbed_official 76:aeb1df146756 65 static uart_irq_handler irq_handler;
mbed_official 76:aeb1df146756 66
mbed_official 76:aeb1df146756 67 int stdio_uart_inited = 0;
mbed_official 76:aeb1df146756 68 serial_t stdio_uart;
mbed_official 76:aeb1df146756 69
mbed_official 76:aeb1df146756 70 static void init_usart(serial_t *obj) {
mbed_official 76:aeb1df146756 71 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 72 USART_InitTypeDef USART_InitStructure;
mbed_official 174:8bb9f3a33240 73
mbed_official 76:aeb1df146756 74 USART_Cmd(usart, DISABLE);
mbed_official 76:aeb1df146756 75
mbed_official 129:0182c99221bc 76 USART_InitStructure.USART_BaudRate = obj->baudrate;
mbed_official 129:0182c99221bc 77 USART_InitStructure.USART_WordLength = obj->databits;
mbed_official 129:0182c99221bc 78 USART_InitStructure.USART_StopBits = obj->stopbits;
mbed_official 129:0182c99221bc 79 USART_InitStructure.USART_Parity = obj->parity;
mbed_official 76:aeb1df146756 80 USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
mbed_official 242:7074e42da0b2 81
mbed_official 242:7074e42da0b2 82 if (obj->pin_rx == NC) {
mbed_official 242:7074e42da0b2 83 USART_InitStructure.USART_Mode = USART_Mode_Tx;
mbed_official 242:7074e42da0b2 84 } else if (obj->pin_tx == NC) {
mbed_official 242:7074e42da0b2 85 USART_InitStructure.USART_Mode = USART_Mode_Rx;
mbed_official 242:7074e42da0b2 86 } else {
mbed_official 242:7074e42da0b2 87 USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
mbed_official 242:7074e42da0b2 88 }
mbed_official 242:7074e42da0b2 89
mbed_official 76:aeb1df146756 90 USART_Init(usart, &USART_InitStructure);
mbed_official 174:8bb9f3a33240 91
mbed_official 76:aeb1df146756 92 USART_Cmd(usart, ENABLE);
mbed_official 76:aeb1df146756 93 }
mbed_official 76:aeb1df146756 94
mbed_official 174:8bb9f3a33240 95 void serial_init(serial_t *obj, PinName tx, PinName rx) {
mbed_official 76:aeb1df146756 96 // Determine the UART to use (UART_1, UART_2, ...)
mbed_official 76:aeb1df146756 97 UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 98 UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
mbed_official 174:8bb9f3a33240 99
mbed_official 76:aeb1df146756 100 // Get the peripheral name (UART_1, UART_2, ...) from the pin and assign it to the object
mbed_official 76:aeb1df146756 101 obj->uart = (UARTName)pinmap_merge(uart_tx, uart_rx);
mbed_official 227:7bd0639b8911 102 MBED_ASSERT(obj->uart != (UARTName)NC);
mbed_official 76:aeb1df146756 103
mbed_official 76:aeb1df146756 104 // Enable USART clock
mbed_official 76:aeb1df146756 105 if (obj->uart == UART_1) {
mbed_official 174:8bb9f3a33240 106 RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
mbed_official 215:83cf97a28428 107 obj->index = 0;
mbed_official 76:aeb1df146756 108 }
mbed_official 76:aeb1df146756 109 if (obj->uart == UART_2) {
mbed_official 174:8bb9f3a33240 110 RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
mbed_official 215:83cf97a28428 111 obj->index = 1;
mbed_official 76:aeb1df146756 112 }
mbed_official 129:0182c99221bc 113 if (obj->uart == UART_3) {
mbed_official 174:8bb9f3a33240 114 RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
mbed_official 215:83cf97a28428 115 obj->index = 2;
mbed_official 118:b44c45162f28 116 }
mbed_official 129:0182c99221bc 117 if (obj->uart == UART_4) {
mbed_official 174:8bb9f3a33240 118 RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);
mbed_official 215:83cf97a28428 119 obj->index = 3;
mbed_official 118:b44c45162f28 120 }
mbed_official 129:0182c99221bc 121 if (obj->uart == UART_5) {
mbed_official 174:8bb9f3a33240 122 RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5, ENABLE);
mbed_official 215:83cf97a28428 123 obj->index = 4;
mbed_official 118:b44c45162f28 124 }
mbed_official 129:0182c99221bc 125
mbed_official 76:aeb1df146756 126 // Configure the UART pins
mbed_official 76:aeb1df146756 127 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 128 pinmap_pinout(rx, PinMap_UART_RX);
mbed_official 76:aeb1df146756 129 pin_mode(tx, PullUp);
mbed_official 76:aeb1df146756 130 pin_mode(rx, PullUp);
mbed_official 76:aeb1df146756 131
mbed_official 76:aeb1df146756 132 // Configure UART
mbed_official 76:aeb1df146756 133 obj->baudrate = 9600;
mbed_official 76:aeb1df146756 134 obj->databits = USART_WordLength_8b;
mbed_official 76:aeb1df146756 135 obj->stopbits = USART_StopBits_1;
mbed_official 174:8bb9f3a33240 136 obj->parity = USART_Parity_No;
mbed_official 76:aeb1df146756 137
mbed_official 215:83cf97a28428 138 obj->pin_tx = tx;
mbed_official 215:83cf97a28428 139 obj->pin_rx = rx;
mbed_official 76:aeb1df146756 140
mbed_official 215:83cf97a28428 141 init_usart(obj);
mbed_official 174:8bb9f3a33240 142
mbed_official 76:aeb1df146756 143 // For stdio management
mbed_official 76:aeb1df146756 144 if (obj->uart == STDIO_UART) {
mbed_official 76:aeb1df146756 145 stdio_uart_inited = 1;
mbed_official 76:aeb1df146756 146 memcpy(&stdio_uart, obj, sizeof(serial_t));
mbed_official 174:8bb9f3a33240 147 }
mbed_official 76:aeb1df146756 148 }
mbed_official 76:aeb1df146756 149
mbed_official 76:aeb1df146756 150 void serial_free(serial_t *obj) {
mbed_official 215:83cf97a28428 151 // Reset UART and disable clock
mbed_official 215:83cf97a28428 152 if (obj->uart == UART_1) {
mbed_official 215:83cf97a28428 153 RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, ENABLE);
mbed_official 215:83cf97a28428 154 RCC_APB2PeriphResetCmd(RCC_APB2Periph_USART1, DISABLE);
mbed_official 215:83cf97a28428 155 RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, DISABLE);
mbed_official 215:83cf97a28428 156 }
mbed_official 215:83cf97a28428 157 if (obj->uart == UART_2) {
mbed_official 215:83cf97a28428 158 RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART2, ENABLE);
mbed_official 215:83cf97a28428 159 RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART2, DISABLE);
mbed_official 215:83cf97a28428 160 RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, DISABLE);
mbed_official 215:83cf97a28428 161 }
mbed_official 215:83cf97a28428 162 if (obj->uart == UART_3) {
mbed_official 215:83cf97a28428 163 RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, ENABLE);
mbed_official 215:83cf97a28428 164 RCC_APB1PeriphResetCmd(RCC_APB1Periph_USART3, DISABLE);
mbed_official 215:83cf97a28428 165 RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, DISABLE);
mbed_official 215:83cf97a28428 166 }
mbed_official 215:83cf97a28428 167 if (obj->uart == UART_4) {
mbed_official 215:83cf97a28428 168 RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART4, ENABLE);
mbed_official 215:83cf97a28428 169 RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART4, DISABLE);
mbed_official 215:83cf97a28428 170 RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4, DISABLE);
mbed_official 215:83cf97a28428 171 }
mbed_official 215:83cf97a28428 172 if (obj->uart == UART_5) {
mbed_official 215:83cf97a28428 173 RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART5, ENABLE);
mbed_official 215:83cf97a28428 174 RCC_APB1PeriphResetCmd(RCC_APB1Periph_UART5, DISABLE);
mbed_official 215:83cf97a28428 175 RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART5, DISABLE);
mbed_official 215:83cf97a28428 176 }
mbed_official 215:83cf97a28428 177
mbed_official 215:83cf97a28428 178 // Configure GPIOs
mbed_official 215:83cf97a28428 179 pin_function(obj->pin_tx, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
mbed_official 215:83cf97a28428 180 pin_function(obj->pin_rx, STM_PIN_DATA(GPIO_Mode_IN, 0, GPIO_PuPd_NOPULL, 0xFF));
mbed_official 215:83cf97a28428 181
mbed_official 76:aeb1df146756 182 serial_irq_ids[obj->index] = 0;
mbed_official 76:aeb1df146756 183 }
mbed_official 76:aeb1df146756 184
mbed_official 76:aeb1df146756 185 void serial_baud(serial_t *obj, int baudrate) {
mbed_official 76:aeb1df146756 186 obj->baudrate = baudrate;
mbed_official 76:aeb1df146756 187 init_usart(obj);
mbed_official 76:aeb1df146756 188 }
mbed_official 76:aeb1df146756 189
mbed_official 76:aeb1df146756 190 void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
mbed_official 242:7074e42da0b2 191 if (data_bits == 9) {
mbed_official 242:7074e42da0b2 192 obj->databits = USART_WordLength_9b;
mbed_official 242:7074e42da0b2 193 } else {
mbed_official 76:aeb1df146756 194 obj->databits = USART_WordLength_8b;
mbed_official 76:aeb1df146756 195 }
mbed_official 76:aeb1df146756 196
mbed_official 76:aeb1df146756 197 switch (parity) {
mbed_official 174:8bb9f3a33240 198 case ParityOdd:
mbed_official 174:8bb9f3a33240 199 case ParityForced0:
mbed_official 174:8bb9f3a33240 200 obj->parity = USART_Parity_Odd;
mbed_official 174:8bb9f3a33240 201 break;
mbed_official 174:8bb9f3a33240 202 case ParityEven:
mbed_official 174:8bb9f3a33240 203 case ParityForced1:
mbed_official 174:8bb9f3a33240 204 obj->parity = USART_Parity_Even;
mbed_official 174:8bb9f3a33240 205 break;
mbed_official 174:8bb9f3a33240 206 default: // ParityNone
mbed_official 174:8bb9f3a33240 207 obj->parity = USART_Parity_No;
mbed_official 174:8bb9f3a33240 208 break;
mbed_official 76:aeb1df146756 209 }
mbed_official 174:8bb9f3a33240 210
mbed_official 76:aeb1df146756 211 if (stop_bits == 2) {
mbed_official 76:aeb1df146756 212 obj->stopbits = USART_StopBits_2;
mbed_official 174:8bb9f3a33240 213 } else {
mbed_official 76:aeb1df146756 214 obj->stopbits = USART_StopBits_1;
mbed_official 76:aeb1df146756 215 }
mbed_official 76:aeb1df146756 216
mbed_official 76:aeb1df146756 217 init_usart(obj);
mbed_official 76:aeb1df146756 218 }
mbed_official 76:aeb1df146756 219
mbed_official 76:aeb1df146756 220 /******************************************************************************
mbed_official 76:aeb1df146756 221 * INTERRUPTS HANDLING
mbed_official 76:aeb1df146756 222 ******************************************************************************/
mbed_official 76:aeb1df146756 223
mbed_official 76:aeb1df146756 224 // not api
mbed_official 76:aeb1df146756 225 static void uart_irq(USART_TypeDef* usart, int id) {
mbed_official 76:aeb1df146756 226 if (serial_irq_ids[id] != 0) {
mbed_official 76:aeb1df146756 227 if (USART_GetITStatus(usart, USART_IT_TC) != RESET) {
mbed_official 76:aeb1df146756 228 irq_handler(serial_irq_ids[id], TxIrq);
mbed_official 76:aeb1df146756 229 USART_ClearITPendingBit(usart, USART_IT_TC);
mbed_official 76:aeb1df146756 230 }
mbed_official 76:aeb1df146756 231 if (USART_GetITStatus(usart, USART_IT_RXNE) != RESET) {
mbed_official 76:aeb1df146756 232 irq_handler(serial_irq_ids[id], RxIrq);
mbed_official 76:aeb1df146756 233 USART_ClearITPendingBit(usart, USART_IT_RXNE);
mbed_official 76:aeb1df146756 234 }
mbed_official 76:aeb1df146756 235 }
mbed_official 76:aeb1df146756 236 }
mbed_official 76:aeb1df146756 237
mbed_official 174:8bb9f3a33240 238 static void uart1_irq(void) {
mbed_official 174:8bb9f3a33240 239 uart_irq((USART_TypeDef*)UART_1, 0);
mbed_official 174:8bb9f3a33240 240 }
mbed_official 174:8bb9f3a33240 241 static void uart2_irq(void) {
mbed_official 174:8bb9f3a33240 242 uart_irq((USART_TypeDef*)UART_2, 1);
mbed_official 174:8bb9f3a33240 243 }
mbed_official 174:8bb9f3a33240 244 static void uart3_irq(void) {
mbed_official 174:8bb9f3a33240 245 uart_irq((USART_TypeDef*)UART_3, 2);
mbed_official 174:8bb9f3a33240 246 }
mbed_official 174:8bb9f3a33240 247 static void uart4_irq(void) {
mbed_official 174:8bb9f3a33240 248 uart_irq((USART_TypeDef*)UART_4, 3);
mbed_official 174:8bb9f3a33240 249 }
mbed_official 174:8bb9f3a33240 250 static void uart5_irq(void) {
mbed_official 174:8bb9f3a33240 251 uart_irq((USART_TypeDef*)UART_5, 4);
mbed_official 174:8bb9f3a33240 252 }
mbed_official 76:aeb1df146756 253
mbed_official 76:aeb1df146756 254 void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
mbed_official 76:aeb1df146756 255 irq_handler = handler;
mbed_official 76:aeb1df146756 256 serial_irq_ids[obj->index] = id;
mbed_official 76:aeb1df146756 257 }
mbed_official 76:aeb1df146756 258
mbed_official 76:aeb1df146756 259 void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
mbed_official 76:aeb1df146756 260 IRQn_Type irq_n = (IRQn_Type)0;
mbed_official 76:aeb1df146756 261 uint32_t vector = 0;
mbed_official 76:aeb1df146756 262 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 263
mbed_official 76:aeb1df146756 264 if (obj->uart == UART_1) {
mbed_official 174:8bb9f3a33240 265 irq_n = USART1_IRQn;
mbed_official 174:8bb9f3a33240 266 vector = (uint32_t)&uart1_irq;
mbed_official 76:aeb1df146756 267 }
mbed_official 174:8bb9f3a33240 268
mbed_official 76:aeb1df146756 269 if (obj->uart == UART_2) {
mbed_official 174:8bb9f3a33240 270 irq_n = USART2_IRQn;
mbed_official 174:8bb9f3a33240 271 vector = (uint32_t)&uart2_irq;
mbed_official 76:aeb1df146756 272 }
mbed_official 129:0182c99221bc 273
mbed_official 118:b44c45162f28 274 if (obj->uart == UART_3) {
mbed_official 174:8bb9f3a33240 275 irq_n = USART3_IRQn;
mbed_official 174:8bb9f3a33240 276 vector = (uint32_t)&uart3_irq;
mbed_official 118:b44c45162f28 277 }
mbed_official 129:0182c99221bc 278
mbed_official 118:b44c45162f28 279 if (obj->uart == UART_4) {
mbed_official 174:8bb9f3a33240 280 irq_n = UART4_IRQn;
mbed_official 174:8bb9f3a33240 281 vector = (uint32_t)&uart4_irq;
mbed_official 118:b44c45162f28 282 }
mbed_official 129:0182c99221bc 283
mbed_official 118:b44c45162f28 284 if (obj->uart == UART_5) {
mbed_official 174:8bb9f3a33240 285 irq_n = UART5_IRQn;
mbed_official 174:8bb9f3a33240 286 vector = (uint32_t)&uart5_irq;
mbed_official 118:b44c45162f28 287 }
mbed_official 174:8bb9f3a33240 288
mbed_official 76:aeb1df146756 289 if (enable) {
mbed_official 174:8bb9f3a33240 290
mbed_official 76:aeb1df146756 291 if (irq == RxIrq) {
mbed_official 76:aeb1df146756 292 USART_ITConfig(usart, USART_IT_RXNE, ENABLE);
mbed_official 174:8bb9f3a33240 293 } else { // TxIrq
mbed_official 76:aeb1df146756 294 USART_ITConfig(usart, USART_IT_TC, ENABLE);
mbed_official 174:8bb9f3a33240 295 }
mbed_official 174:8bb9f3a33240 296
mbed_official 76:aeb1df146756 297 NVIC_SetVector(irq_n, vector);
mbed_official 76:aeb1df146756 298 NVIC_EnableIRQ(irq_n);
mbed_official 174:8bb9f3a33240 299
mbed_official 76:aeb1df146756 300 } else { // disable
mbed_official 174:8bb9f3a33240 301
mbed_official 76:aeb1df146756 302 int all_disabled = 0;
mbed_official 174:8bb9f3a33240 303
mbed_official 76:aeb1df146756 304 if (irq == RxIrq) {
mbed_official 76:aeb1df146756 305 USART_ITConfig(usart, USART_IT_RXNE, DISABLE);
mbed_official 76:aeb1df146756 306 // Check if TxIrq is disabled too
mbed_official 76:aeb1df146756 307 if ((usart->CR1 & USART_CR1_TXEIE) == 0) all_disabled = 1;
mbed_official 174:8bb9f3a33240 308 } else { // TxIrq
mbed_official 76:aeb1df146756 309 USART_ITConfig(usart, USART_IT_TXE, DISABLE);
mbed_official 76:aeb1df146756 310 // Check if RxIrq is disabled too
mbed_official 174:8bb9f3a33240 311 if ((usart->CR1 & USART_CR1_RXNEIE) == 0) all_disabled = 1;
mbed_official 76:aeb1df146756 312 }
mbed_official 174:8bb9f3a33240 313
mbed_official 76:aeb1df146756 314 if (all_disabled) NVIC_DisableIRQ(irq_n);
mbed_official 174:8bb9f3a33240 315
mbed_official 174:8bb9f3a33240 316 }
mbed_official 76:aeb1df146756 317 }
mbed_official 76:aeb1df146756 318
mbed_official 76:aeb1df146756 319 /******************************************************************************
mbed_official 76:aeb1df146756 320 * READ/WRITE
mbed_official 76:aeb1df146756 321 ******************************************************************************/
mbed_official 76:aeb1df146756 322
mbed_official 76:aeb1df146756 323 int serial_getc(serial_t *obj) {
mbed_official 76:aeb1df146756 324 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 325 while (!serial_readable(obj));
mbed_official 76:aeb1df146756 326 return (int)(USART_ReceiveData(usart));
mbed_official 76:aeb1df146756 327 }
mbed_official 76:aeb1df146756 328
mbed_official 76:aeb1df146756 329 void serial_putc(serial_t *obj, int c) {
mbed_official 76:aeb1df146756 330 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 331 while (!serial_writable(obj));
mbed_official 76:aeb1df146756 332 USART_SendData(usart, (uint16_t)c);
mbed_official 76:aeb1df146756 333 }
mbed_official 76:aeb1df146756 334
mbed_official 76:aeb1df146756 335 int serial_readable(serial_t *obj) {
mbed_official 76:aeb1df146756 336 int status;
mbed_official 76:aeb1df146756 337 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 338 // Check if data is received
mbed_official 76:aeb1df146756 339 status = ((USART_GetFlagStatus(usart, USART_FLAG_RXNE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 340 return status;
mbed_official 76:aeb1df146756 341 }
mbed_official 76:aeb1df146756 342
mbed_official 76:aeb1df146756 343 int serial_writable(serial_t *obj) {
mbed_official 76:aeb1df146756 344 int status;
mbed_official 76:aeb1df146756 345 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 346 // Check if data is transmitted
mbed_official 76:aeb1df146756 347 status = ((USART_GetFlagStatus(usart, USART_FLAG_TXE) != RESET) ? 1 : 0);
mbed_official 76:aeb1df146756 348 return status;
mbed_official 76:aeb1df146756 349 }
mbed_official 76:aeb1df146756 350
mbed_official 76:aeb1df146756 351 void serial_clear(serial_t *obj) {
mbed_official 76:aeb1df146756 352 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 353 USART_ClearFlag(usart, USART_FLAG_TXE);
mbed_official 76:aeb1df146756 354 USART_ClearFlag(usart, USART_FLAG_RXNE);
mbed_official 76:aeb1df146756 355 }
mbed_official 76:aeb1df146756 356
mbed_official 76:aeb1df146756 357 void serial_pinout_tx(PinName tx) {
mbed_official 76:aeb1df146756 358 pinmap_pinout(tx, PinMap_UART_TX);
mbed_official 76:aeb1df146756 359 }
mbed_official 76:aeb1df146756 360
mbed_official 76:aeb1df146756 361 void serial_break_set(serial_t *obj) {
mbed_official 76:aeb1df146756 362 USART_TypeDef *usart = (USART_TypeDef *)(obj->uart);
mbed_official 76:aeb1df146756 363 USART_SendBreak(usart);
mbed_official 76:aeb1df146756 364 }
mbed_official 76:aeb1df146756 365
mbed_official 76:aeb1df146756 366 void serial_break_clear(serial_t *obj) {
mbed_official 76:aeb1df146756 367 }
mbed_official 174:8bb9f3a33240 368
mbed_official 174:8bb9f3a33240 369 #endif