mbed library sources
Fork of mbed-src by
targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/serial_api.c@407:bbbab616ce8f, 2014-11-19 (annotated)
- Committer:
- mbed_official
- Date:
- Wed Nov 19 08:30:07 2014 +0000
- Revision:
- 407:bbbab616ce8f
- Parent:
- 395:bfce16e86ea4
- Child:
- 433:73d4f6083dd2
Synchronized with git revision 7ff3e68a9620bb9eab1f14ca4522c07d60a8329a
Full URL: https://github.com/mbedmicro/mbed/commit/7ff3e68a9620bb9eab1f14ca4522c07d60a8329a/
Tools: NUCLEO_F302R8 - exporters for gcc_arm and coide
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 85:e1a8e879a6a9 | 1 | /* mbed Microcontroller Library |
mbed_official | 104:a6a92e2e5a92 | 2 | * Copyright (c) 2013 Nordic Semiconductor |
mbed_official | 85:e1a8e879a6a9 | 3 | * |
mbed_official | 85:e1a8e879a6a9 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
mbed_official | 85:e1a8e879a6a9 | 5 | * you may not use this file except in compliance with the License. |
mbed_official | 85:e1a8e879a6a9 | 6 | * You may obtain a copy of the License at |
mbed_official | 85:e1a8e879a6a9 | 7 | * |
mbed_official | 85:e1a8e879a6a9 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
mbed_official | 85:e1a8e879a6a9 | 9 | * |
mbed_official | 85:e1a8e879a6a9 | 10 | * Unless required by applicable law or agreed to in writing, software |
mbed_official | 85:e1a8e879a6a9 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
mbed_official | 85:e1a8e879a6a9 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
mbed_official | 85:e1a8e879a6a9 | 13 | * See the License for the specific language governing permissions and |
mbed_official | 85:e1a8e879a6a9 | 14 | * limitations under the License. |
mbed_official | 85:e1a8e879a6a9 | 15 | */ |
mbed_official | 85:e1a8e879a6a9 | 16 | // math.h required for floating point operations for baud rate calculation |
mbed_official | 85:e1a8e879a6a9 | 17 | //#include <math.h> |
mbed_official | 85:e1a8e879a6a9 | 18 | #include <string.h> |
mbed_official | 227:7bd0639b8911 | 19 | #include "mbed_assert.h" |
mbed_official | 85:e1a8e879a6a9 | 20 | |
mbed_official | 85:e1a8e879a6a9 | 21 | #include "serial_api.h" |
mbed_official | 85:e1a8e879a6a9 | 22 | #include "cmsis.h" |
mbed_official | 85:e1a8e879a6a9 | 23 | #include "pinmap.h" |
mbed_official | 227:7bd0639b8911 | 24 | |
mbed_official | 85:e1a8e879a6a9 | 25 | /****************************************************************************** |
mbed_official | 85:e1a8e879a6a9 | 26 | * INITIALIZATION |
mbed_official | 85:e1a8e879a6a9 | 27 | ******************************************************************************/ |
mbed_official | 85:e1a8e879a6a9 | 28 | #define UART_NUM 1 |
mbed_official | 85:e1a8e879a6a9 | 29 | |
mbed_official | 85:e1a8e879a6a9 | 30 | static uint32_t serial_irq_ids[UART_NUM] = {0}; |
mbed_official | 85:e1a8e879a6a9 | 31 | static uart_irq_handler irq_handler; |
mbed_official | 407:bbbab616ce8f | 32 | static uint32_t acceptedSpeeds[17][2] = {{1200, UART_BAUDRATE_BAUDRATE_Baud1200}, |
mbed_official | 300:55638feb26a4 | 33 | {2400, UART_BAUDRATE_BAUDRATE_Baud2400}, |
mbed_official | 300:55638feb26a4 | 34 | {4800, UART_BAUDRATE_BAUDRATE_Baud4800}, |
mbed_official | 300:55638feb26a4 | 35 | {9600, UART_BAUDRATE_BAUDRATE_Baud9600}, |
mbed_official | 300:55638feb26a4 | 36 | {14400, UART_BAUDRATE_BAUDRATE_Baud14400}, |
mbed_official | 300:55638feb26a4 | 37 | {19200, UART_BAUDRATE_BAUDRATE_Baud19200}, |
mbed_official | 300:55638feb26a4 | 38 | {28800, UART_BAUDRATE_BAUDRATE_Baud28800}, |
mbed_official | 407:bbbab616ce8f | 39 | {31250, (0x00800000UL) /* 31250 baud */}, |
mbed_official | 300:55638feb26a4 | 40 | {38400, UART_BAUDRATE_BAUDRATE_Baud38400}, |
mbed_official | 300:55638feb26a4 | 41 | {57600, UART_BAUDRATE_BAUDRATE_Baud57600}, |
mbed_official | 300:55638feb26a4 | 42 | {76800, UART_BAUDRATE_BAUDRATE_Baud76800}, |
mbed_official | 300:55638feb26a4 | 43 | {115200, UART_BAUDRATE_BAUDRATE_Baud115200}, |
mbed_official | 300:55638feb26a4 | 44 | {230400, UART_BAUDRATE_BAUDRATE_Baud230400}, |
mbed_official | 300:55638feb26a4 | 45 | {250000, UART_BAUDRATE_BAUDRATE_Baud250000}, |
mbed_official | 300:55638feb26a4 | 46 | {460800, UART_BAUDRATE_BAUDRATE_Baud460800}, |
mbed_official | 300:55638feb26a4 | 47 | {921600, UART_BAUDRATE_BAUDRATE_Baud921600}, |
mbed_official | 300:55638feb26a4 | 48 | {1000000, UART_BAUDRATE_BAUDRATE_Baud1M}}; |
mbed_official | 85:e1a8e879a6a9 | 49 | |
mbed_official | 85:e1a8e879a6a9 | 50 | int stdio_uart_inited = 0; |
mbed_official | 85:e1a8e879a6a9 | 51 | serial_t stdio_uart; |
mbed_official | 85:e1a8e879a6a9 | 52 | |
mbed_official | 85:e1a8e879a6a9 | 53 | |
mbed_official | 85:e1a8e879a6a9 | 54 | void serial_init(serial_t *obj, PinName tx, PinName rx) { |
mbed_official | 288:17565898c031 | 55 | UARTName uart = UART_0; |
mbed_official | 85:e1a8e879a6a9 | 56 | obj->uart = (NRF_UART_Type *)uart; |
mbed_official | 300:55638feb26a4 | 57 | |
mbed_official | 227:7bd0639b8911 | 58 | //pin configurations -- |
mbed_official | 227:7bd0639b8911 | 59 | //outputs |
mbed_official | 300:55638feb26a4 | 60 | NRF_GPIO->DIR |= (1 << tx); //TX_PIN_NUMBER); |
mbed_official | 300:55638feb26a4 | 61 | NRF_GPIO->DIR |= (1 << RTS_PIN_NUMBER); |
mbed_official | 85:e1a8e879a6a9 | 62 | |
mbed_official | 300:55638feb26a4 | 63 | NRF_GPIO->DIR &= ~(1 << rx); //RX_PIN_NUMBER); |
mbed_official | 300:55638feb26a4 | 64 | NRF_GPIO->DIR &= ~(1 << CTS_PIN_NUMBER); |
mbed_official | 300:55638feb26a4 | 65 | |
mbed_official | 85:e1a8e879a6a9 | 66 | obj->uart->PSELRTS = RTS_PIN_NUMBER; |
mbed_official | 300:55638feb26a4 | 67 | obj->uart->PSELTXD = tx; //TX_PIN_NUMBER; |
mbed_official | 300:55638feb26a4 | 68 | |
mbed_official | 85:e1a8e879a6a9 | 69 | //inputs |
mbed_official | 85:e1a8e879a6a9 | 70 | obj->uart->PSELCTS = CTS_PIN_NUMBER; |
mbed_official | 300:55638feb26a4 | 71 | obj->uart->PSELRXD = rx; //RX_PIN_NUMBER; |
mbed_official | 300:55638feb26a4 | 72 | |
mbed_official | 300:55638feb26a4 | 73 | |
mbed_official | 85:e1a8e879a6a9 | 74 | // set default baud rate and format |
mbed_official | 85:e1a8e879a6a9 | 75 | serial_baud (obj, 9600); |
mbed_official | 85:e1a8e879a6a9 | 76 | serial_format(obj, 8, ParityNone, 1); |
mbed_official | 300:55638feb26a4 | 77 | |
mbed_official | 300:55638feb26a4 | 78 | obj->uart->ENABLE = (UART_ENABLE_ENABLE_Enabled << UART_ENABLE_ENABLE_Pos); |
mbed_official | 85:e1a8e879a6a9 | 79 | obj->uart->TASKS_STARTTX = 1; |
mbed_official | 85:e1a8e879a6a9 | 80 | obj->uart->TASKS_STARTRX = 1; |
mbed_official | 300:55638feb26a4 | 81 | obj->uart->EVENTS_RXDRDY = 0; |
mbed_official | 300:55638feb26a4 | 82 | |
mbed_official | 85:e1a8e879a6a9 | 83 | obj->index = 0; |
mbed_official | 300:55638feb26a4 | 84 | |
mbed_official | 85:e1a8e879a6a9 | 85 | // set rx/tx pins in PullUp mode |
mbed_official | 339:40bd4701f3e2 | 86 | if (tx != NC) { |
mbed_official | 339:40bd4701f3e2 | 87 | pin_mode(tx, PullUp); |
mbed_official | 339:40bd4701f3e2 | 88 | } |
mbed_official | 339:40bd4701f3e2 | 89 | if (rx != NC) { |
mbed_official | 339:40bd4701f3e2 | 90 | pin_mode(rx, PullUp); |
mbed_official | 339:40bd4701f3e2 | 91 | } |
mbed_official | 300:55638feb26a4 | 92 | |
mbed_official | 85:e1a8e879a6a9 | 93 | if (uart == STDIO_UART) { |
mbed_official | 85:e1a8e879a6a9 | 94 | stdio_uart_inited = 1; |
mbed_official | 85:e1a8e879a6a9 | 95 | memcpy(&stdio_uart, obj, sizeof(serial_t)); |
mbed_official | 85:e1a8e879a6a9 | 96 | } |
mbed_official | 85:e1a8e879a6a9 | 97 | } |
mbed_official | 85:e1a8e879a6a9 | 98 | |
mbed_official | 300:55638feb26a4 | 99 | void serial_free(serial_t *obj) |
mbed_official | 300:55638feb26a4 | 100 | { |
mbed_official | 85:e1a8e879a6a9 | 101 | serial_irq_ids[obj->index] = 0; |
mbed_official | 85:e1a8e879a6a9 | 102 | } |
mbed_official | 85:e1a8e879a6a9 | 103 | |
mbed_official | 85:e1a8e879a6a9 | 104 | // serial_baud |
mbed_official | 85:e1a8e879a6a9 | 105 | // set the baud rate, taking in to account the current SystemFrequency |
mbed_official | 300:55638feb26a4 | 106 | void serial_baud(serial_t *obj, int baudrate) |
mbed_official | 300:55638feb26a4 | 107 | { |
mbed_official | 300:55638feb26a4 | 108 | if (baudrate<=1200) { |
mbed_official | 85:e1a8e879a6a9 | 109 | obj->uart->BAUDRATE = UART_BAUDRATE_BAUDRATE_Baud1200; |
mbed_official | 85:e1a8e879a6a9 | 110 | return; |
mbed_official | 227:7bd0639b8911 | 111 | } |
mbed_official | 300:55638feb26a4 | 112 | |
mbed_official | 407:bbbab616ce8f | 113 | for (int i = 1; i<17; i++) { |
mbed_official | 300:55638feb26a4 | 114 | if (baudrate<acceptedSpeeds[i][0]) { |
mbed_official | 300:55638feb26a4 | 115 | obj->uart->BAUDRATE = acceptedSpeeds[i - 1][1]; |
mbed_official | 85:e1a8e879a6a9 | 116 | return; |
mbed_official | 85:e1a8e879a6a9 | 117 | } |
mbed_official | 85:e1a8e879a6a9 | 118 | } |
mbed_official | 85:e1a8e879a6a9 | 119 | obj->uart->BAUDRATE = UART_BAUDRATE_BAUDRATE_Baud1M; |
mbed_official | 85:e1a8e879a6a9 | 120 | } |
mbed_official | 85:e1a8e879a6a9 | 121 | |
mbed_official | 300:55638feb26a4 | 122 | void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) |
mbed_official | 300:55638feb26a4 | 123 | { |
mbed_official | 85:e1a8e879a6a9 | 124 | // 0: 1 stop bits, 1: 2 stop bits |
mbed_official | 300:55638feb26a4 | 125 | // int parity_enable, parity_select; |
mbed_official | 85:e1a8e879a6a9 | 126 | switch (parity) { |
mbed_official | 227:7bd0639b8911 | 127 | case ParityNone: |
mbed_official | 300:55638feb26a4 | 128 | obj->uart->CONFIG = 0; |
mbed_official | 300:55638feb26a4 | 129 | break; |
mbed_official | 85:e1a8e879a6a9 | 130 | default: |
mbed_official | 300:55638feb26a4 | 131 | obj->uart->CONFIG = (UART_CONFIG_PARITY_Included << UART_CONFIG_PARITY_Pos); |
mbed_official | 85:e1a8e879a6a9 | 132 | return; |
mbed_official | 85:e1a8e879a6a9 | 133 | } |
mbed_official | 85:e1a8e879a6a9 | 134 | //no Flow Control |
mbed_official | 85:e1a8e879a6a9 | 135 | } |
mbed_official | 85:e1a8e879a6a9 | 136 | |
mbed_official | 85:e1a8e879a6a9 | 137 | //****************************************************************************** |
mbed_official | 85:e1a8e879a6a9 | 138 | // * INTERRUPT HANDLING |
mbed_official | 85:e1a8e879a6a9 | 139 | //****************************************************************************** |
mbed_official | 300:55638feb26a4 | 140 | static inline void uart_irq(uint32_t iir, uint32_t index) |
mbed_official | 300:55638feb26a4 | 141 | { |
mbed_official | 85:e1a8e879a6a9 | 142 | SerialIrq irq_type; |
mbed_official | 85:e1a8e879a6a9 | 143 | switch (iir) { |
mbed_official | 227:7bd0639b8911 | 144 | case 1: |
mbed_official | 227:7bd0639b8911 | 145 | irq_type = TxIrq; |
mbed_official | 300:55638feb26a4 | 146 | break; |
mbed_official | 227:7bd0639b8911 | 147 | case 2: |
mbed_official | 227:7bd0639b8911 | 148 | irq_type = RxIrq; |
mbed_official | 300:55638feb26a4 | 149 | break; |
mbed_official | 300:55638feb26a4 | 150 | |
mbed_official | 300:55638feb26a4 | 151 | default: |
mbed_official | 300:55638feb26a4 | 152 | return; |
mbed_official | 85:e1a8e879a6a9 | 153 | } |
mbed_official | 300:55638feb26a4 | 154 | |
mbed_official | 300:55638feb26a4 | 155 | if (serial_irq_ids[index] != 0) { |
mbed_official | 85:e1a8e879a6a9 | 156 | irq_handler(serial_irq_ids[index], irq_type); |
mbed_official | 85:e1a8e879a6a9 | 157 | } |
mbed_official | 85:e1a8e879a6a9 | 158 | } |
mbed_official | 300:55638feb26a4 | 159 | |
mbed_official | 85:e1a8e879a6a9 | 160 | #ifdef __cplusplus |
mbed_official | 85:e1a8e879a6a9 | 161 | extern "C" { |
mbed_official | 227:7bd0639b8911 | 162 | #endif |
mbed_official | 85:e1a8e879a6a9 | 163 | void UART0_IRQHandler() |
mbed_official | 85:e1a8e879a6a9 | 164 | { |
mbed_official | 300:55638feb26a4 | 165 | uint32_t irtype = 0; |
mbed_official | 300:55638feb26a4 | 166 | |
mbed_official | 340:28d1f895c6fe | 167 | if((NRF_UART0->INTENSET & 0x80) && NRF_UART0->EVENTS_TXDRDY) { |
mbed_official | 300:55638feb26a4 | 168 | irtype = 1; |
mbed_official | 340:28d1f895c6fe | 169 | } else if((NRF_UART0->INTENSET & 0x04) && NRF_UART0->EVENTS_RXDRDY) { |
mbed_official | 300:55638feb26a4 | 170 | irtype = 2; |
mbed_official | 85:e1a8e879a6a9 | 171 | } |
mbed_official | 85:e1a8e879a6a9 | 172 | uart_irq(irtype, 0); |
mbed_official | 85:e1a8e879a6a9 | 173 | } |
mbed_official | 300:55638feb26a4 | 174 | |
mbed_official | 85:e1a8e879a6a9 | 175 | #ifdef __cplusplus |
mbed_official | 85:e1a8e879a6a9 | 176 | } |
mbed_official | 227:7bd0639b8911 | 177 | #endif |
mbed_official | 300:55638feb26a4 | 178 | void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) |
mbed_official | 300:55638feb26a4 | 179 | { |
mbed_official | 300:55638feb26a4 | 180 | irq_handler = handler; |
mbed_official | 85:e1a8e879a6a9 | 181 | serial_irq_ids[obj->index] = id; |
mbed_official | 85:e1a8e879a6a9 | 182 | } |
mbed_official | 85:e1a8e879a6a9 | 183 | |
mbed_official | 300:55638feb26a4 | 184 | void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) |
mbed_official | 300:55638feb26a4 | 185 | { |
mbed_official | 85:e1a8e879a6a9 | 186 | IRQn_Type irq_n = (IRQn_Type)0; |
mbed_official | 85:e1a8e879a6a9 | 187 | |
mbed_official | 85:e1a8e879a6a9 | 188 | switch ((int)obj->uart) { |
mbed_official | 300:55638feb26a4 | 189 | case UART_0: |
mbed_official | 300:55638feb26a4 | 190 | irq_n = UART0_IRQn; |
mbed_official | 85:e1a8e879a6a9 | 191 | break; |
mbed_official | 85:e1a8e879a6a9 | 192 | } |
mbed_official | 300:55638feb26a4 | 193 | |
mbed_official | 85:e1a8e879a6a9 | 194 | if (enable) { |
mbed_official | 85:e1a8e879a6a9 | 195 | switch (irq) { |
mbed_official | 300:55638feb26a4 | 196 | case RxIrq: |
mbed_official | 300:55638feb26a4 | 197 | obj->uart->INTENSET |= (UART_INTENSET_RXDRDY_Msk); |
mbed_official | 300:55638feb26a4 | 198 | break; |
mbed_official | 300:55638feb26a4 | 199 | case TxIrq: |
mbed_official | 300:55638feb26a4 | 200 | obj->uart->INTENSET |= (UART_INTENSET_TXDRDY_Msk); |
mbed_official | 300:55638feb26a4 | 201 | break; |
mbed_official | 85:e1a8e879a6a9 | 202 | } |
mbed_official | 85:e1a8e879a6a9 | 203 | NVIC_SetPriority(irq_n, 3); |
mbed_official | 85:e1a8e879a6a9 | 204 | NVIC_EnableIRQ(irq_n); |
mbed_official | 300:55638feb26a4 | 205 | } else { // disable |
mbed_official | 85:e1a8e879a6a9 | 206 | int all_disabled = 0; |
mbed_official | 85:e1a8e879a6a9 | 207 | switch (irq) { |
mbed_official | 300:55638feb26a4 | 208 | case RxIrq: |
mbed_official | 300:55638feb26a4 | 209 | obj->uart->INTENSET &= ~(UART_INTENSET_RXDRDY_Msk); |
mbed_official | 300:55638feb26a4 | 210 | all_disabled = (obj->uart->INTENSET & (UART_INTENSET_TXDRDY_Msk))==0; |
mbed_official | 300:55638feb26a4 | 211 | break; |
mbed_official | 300:55638feb26a4 | 212 | case TxIrq: |
mbed_official | 300:55638feb26a4 | 213 | obj->uart->INTENSET &= ~(UART_INTENSET_TXDRDY_Msk); |
mbed_official | 300:55638feb26a4 | 214 | all_disabled = (obj->uart->INTENSET & (UART_INTENSET_RXDRDY_Msk))==0; |
mbed_official | 300:55638feb26a4 | 215 | break; |
mbed_official | 85:e1a8e879a6a9 | 216 | } |
mbed_official | 300:55638feb26a4 | 217 | |
mbed_official | 300:55638feb26a4 | 218 | if (all_disabled) { |
mbed_official | 85:e1a8e879a6a9 | 219 | NVIC_DisableIRQ(irq_n); |
mbed_official | 85:e1a8e879a6a9 | 220 | } |
mbed_official | 85:e1a8e879a6a9 | 221 | } |
mbed_official | 85:e1a8e879a6a9 | 222 | } |
mbed_official | 85:e1a8e879a6a9 | 223 | |
mbed_official | 85:e1a8e879a6a9 | 224 | //****************************************************************************** |
mbed_official | 85:e1a8e879a6a9 | 225 | //* READ/WRITE |
mbed_official | 85:e1a8e879a6a9 | 226 | //****************************************************************************** |
mbed_official | 300:55638feb26a4 | 227 | int serial_getc(serial_t *obj) |
mbed_official | 300:55638feb26a4 | 228 | { |
mbed_official | 300:55638feb26a4 | 229 | while (!serial_readable(obj)) { |
mbed_official | 300:55638feb26a4 | 230 | } |
mbed_official | 300:55638feb26a4 | 231 | |
mbed_official | 85:e1a8e879a6a9 | 232 | obj->uart->EVENTS_RXDRDY = 0; |
mbed_official | 300:55638feb26a4 | 233 | |
mbed_official | 85:e1a8e879a6a9 | 234 | return (uint8_t)obj->uart->RXD; |
mbed_official | 85:e1a8e879a6a9 | 235 | } |
mbed_official | 85:e1a8e879a6a9 | 236 | |
mbed_official | 300:55638feb26a4 | 237 | void serial_putc(serial_t *obj, int c) |
mbed_official | 300:55638feb26a4 | 238 | { |
mbed_official | 85:e1a8e879a6a9 | 239 | obj->uart->TXD = (uint8_t)c; |
mbed_official | 300:55638feb26a4 | 240 | |
mbed_official | 300:55638feb26a4 | 241 | while (!serial_writable(obj)) { |
mbed_official | 300:55638feb26a4 | 242 | } |
mbed_official | 300:55638feb26a4 | 243 | |
mbed_official | 300:55638feb26a4 | 244 | obj->uart->EVENTS_TXDRDY = 0; |
mbed_official | 85:e1a8e879a6a9 | 245 | } |
mbed_official | 85:e1a8e879a6a9 | 246 | |
mbed_official | 300:55638feb26a4 | 247 | int serial_readable(serial_t *obj) |
mbed_official | 300:55638feb26a4 | 248 | { |
mbed_official | 85:e1a8e879a6a9 | 249 | return (obj->uart->EVENTS_RXDRDY == 1); |
mbed_official | 85:e1a8e879a6a9 | 250 | } |
mbed_official | 85:e1a8e879a6a9 | 251 | |
mbed_official | 300:55638feb26a4 | 252 | int serial_writable(serial_t *obj) |
mbed_official | 300:55638feb26a4 | 253 | { |
mbed_official | 85:e1a8e879a6a9 | 254 | return (obj->uart->EVENTS_TXDRDY ==1); |
mbed_official | 85:e1a8e879a6a9 | 255 | } |
mbed_official | 85:e1a8e879a6a9 | 256 | |
mbed_official | 300:55638feb26a4 | 257 | void serial_break_set(serial_t *obj) |
mbed_official | 300:55638feb26a4 | 258 | { |
mbed_official | 85:e1a8e879a6a9 | 259 | obj->uart->TASKS_SUSPEND = 1; |
mbed_official | 85:e1a8e879a6a9 | 260 | } |
mbed_official | 85:e1a8e879a6a9 | 261 | |
mbed_official | 300:55638feb26a4 | 262 | void serial_break_clear(serial_t *obj) |
mbed_official | 300:55638feb26a4 | 263 | { |
mbed_official | 85:e1a8e879a6a9 | 264 | obj->uart->TASKS_STARTTX = 1; |
mbed_official | 85:e1a8e879a6a9 | 265 | obj->uart->TASKS_STARTRX = 1; |
mbed_official | 85:e1a8e879a6a9 | 266 | } |
mbed_official | 340:28d1f895c6fe | 267 | |
mbed_official | 340:28d1f895c6fe | 268 | void serial_set_flow_control(serial_t *obj, FlowControl type, PinName rxflow, PinName txflow) |
mbed_official | 340:28d1f895c6fe | 269 | { |
mbed_official | 340:28d1f895c6fe | 270 | |
mbed_official | 340:28d1f895c6fe | 271 | if (type == FlowControlRTSCTS || type == FlowControlRTS) { |
mbed_official | 340:28d1f895c6fe | 272 | NRF_GPIO->DIR |= (1<<rxflow); |
mbed_official | 340:28d1f895c6fe | 273 | pin_mode(rxflow, PullUp); |
mbed_official | 340:28d1f895c6fe | 274 | obj->uart->PSELRTS = rxflow; |
mbed_official | 340:28d1f895c6fe | 275 | |
mbed_official | 340:28d1f895c6fe | 276 | obj->uart->CONFIG |= 0x01; // Enable HWFC |
mbed_official | 340:28d1f895c6fe | 277 | } |
mbed_official | 340:28d1f895c6fe | 278 | |
mbed_official | 340:28d1f895c6fe | 279 | if (type == FlowControlRTSCTS || type == FlowControlCTS) { |
mbed_official | 340:28d1f895c6fe | 280 | NRF_GPIO->DIR &= ~(1<<txflow); |
mbed_official | 340:28d1f895c6fe | 281 | pin_mode(txflow, PullUp); |
mbed_official | 340:28d1f895c6fe | 282 | obj->uart->PSELCTS = txflow; |
mbed_official | 340:28d1f895c6fe | 283 | |
mbed_official | 340:28d1f895c6fe | 284 | obj->uart->CONFIG |= 0x01; // Enable HWFC; |
mbed_official | 340:28d1f895c6fe | 285 | } |
mbed_official | 340:28d1f895c6fe | 286 | |
mbed_official | 340:28d1f895c6fe | 287 | if (type == FlowControlNone) { |
mbed_official | 340:28d1f895c6fe | 288 | obj->uart->PSELRTS = 0xFFFFFFFF; // Disable RTS |
mbed_official | 340:28d1f895c6fe | 289 | obj->uart->PSELCTS = 0xFFFFFFFF; // Disable CTS |
mbed_official | 340:28d1f895c6fe | 290 | |
mbed_official | 340:28d1f895c6fe | 291 | obj->uart->CONFIG &= ~0x01; // Enable HWFC; |
mbed_official | 340:28d1f895c6fe | 292 | } |
mbed_official | 340:28d1f895c6fe | 293 | } |
mbed_official | 340:28d1f895c6fe | 294 | |
mbed_official | 340:28d1f895c6fe | 295 | void serial_clear(serial_t *obj) { |
mbed_official | 340:28d1f895c6fe | 296 | } |