Andriy Makukha / Mbed 2 deprecated football_project_wo_output

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Dependencies:   mbed

Fork of football_project by MZJ

io/MySerial.cpp@9:95dc84e9fb7f, 2015-04-19 (annotated)

Committer:
AntonLS
Date:
Sun Apr 19 19:59:46 2015 +0000
Revision:
9:95dc84e9fb7f
Parent:
8:d5d055be2bb8
Child:
15:b86c4b798aa1
RTS HWFC now working.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AntonLS 1:0ba687d4196f 1 /*
AntonLS 1:0ba687d4196f 2 *
AntonLS 1:0ba687d4196f 3 * Replacement for Serial, so UART flow control is inited properly. ALS 20150412
AntonLS 1:0ba687d4196f 4 *
AntonLS 1:0ba687d4196f 5 * MySerialBase is a replacement for SerialBase, to prevent it from calling
AntonLS 1:0ba687d4196f 6 * the faulty-for-nRF51822-uart-init serial_init()
AntonLS 1:0ba687d4196f 7 * in mbed/targets/hal/TARGET_NORDIC/TARGET_MCU_NRF51822/serial_api.c
AntonLS 1:0ba687d4196f 8 *
AntonLS 1:0ba687d4196f 9 */
AntonLS 1:0ba687d4196f 10
AntonLS 1:0ba687d4196f 11 #include "MySerial.h"
AntonLS 1:0ba687d4196f 12
AntonLS 1:0ba687d4196f 13 extern "C"
AntonLS 1:0ba687d4196f 14 {
AntonLS 1:0ba687d4196f 15 void pin_mode( PinName, PinMode );
AntonLS 6:ef758ac3c928 16
AntonLS 8:d5d055be2bb8 17 void UART0_IRQHandler(); // Make sure UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 8:d5d055be2bb8 18 // TODO Maybe move all serial_api.c workarounds into serial_api.c
AntonLS 1:0ba687d4196f 19 }
AntonLS 1:0ba687d4196f 20
AntonLS 1:0ba687d4196f 21 extern int stdio_uart_inited;
AntonLS 1:0ba687d4196f 22 extern serial_t stdio_uart;
AntonLS 1:0ba687d4196f 23
AntonLS 6:ef758ac3c928 24 // Our versions of serial_api.c's...
AntonLS 8:d5d055be2bb8 25 // (serial_free(), etc. in serial_api.c won't work when use our own copy.) TODO Maybe make one in serial_api.c accessible.
AntonLS 6:ef758ac3c928 26 #define UART_NUM 1
AntonLS 6:ef758ac3c928 27 static uint32_t serial_irq_ids[UART_NUM] = {0};
AntonLS 6:ef758ac3c928 28 static uart_irq_handler irq_handler;
AntonLS 6:ef758ac3c928 29
AntonLS 1:0ba687d4196f 30
AntonLS 1:0ba687d4196f 31 using namespace moo;
AntonLS 1:0ba687d4196f 32
AntonLS 1:0ba687d4196f 33
AntonLS 1:0ba687d4196f 34 MySerialBase::MySerialBase( PinName tx, PinName rx,
AntonLS 1:0ba687d4196f 35 PinName rts, PinName cts ) : _my_serial(), _my_baud( 9600 )
AntonLS 1:0ba687d4196f 36 {
AntonLS 2:fe1566cdb6e7 37 my_serial_init( &_my_serial, tx, rx, rts, cts, _my_baud );
AntonLS 8:d5d055be2bb8 38 // serial_irq_handler( &_my_serial, _irq_handler, (uint32_t)this ); // serial_api.c only calls handler for Tx & Rx.
AntonLS 7:205ef63d311a 39
AntonLS 8:d5d055be2bb8 40 // Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 8:d5d055be2bb8 41 my_serial_irq_handler( &_my_serial, _irq_handler, (uint32_t)this );
AntonLS 5:1b9734e68327 42
AntonLS 8:d5d055be2bb8 43 // For uart errors -- Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 8:d5d055be2bb8 44 attach( this, &MySerialBase::error_handler, (Serial::IrqType)ErrIrq );
AntonLS 8:d5d055be2bb8 45 // For cts -- Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 8:d5d055be2bb8 46 attach( this, &MySerialBase::ncts_handler, (Serial::IrqType)NctsIrq );
AntonLS 8:d5d055be2bb8 47 attach( this, &MySerialBase::cts_handler, (Serial::IrqType)CtsIrq );
AntonLS 1:0ba687d4196f 48 }
AntonLS 1:0ba687d4196f 49 void MySerialBase::baud( int baudrate )
AntonLS 1:0ba687d4196f 50 {
AntonLS 1:0ba687d4196f 51 serial_baud( &_my_serial, baudrate );
AntonLS 1:0ba687d4196f 52 _my_baud = baudrate;
AntonLS 1:0ba687d4196f 53 }
AntonLS 1:0ba687d4196f 54 void MySerialBase::format( int bits, SerialBase::Parity parity, int stop_bits )
AntonLS 1:0ba687d4196f 55 {
AntonLS 1:0ba687d4196f 56 serial_format( &_my_serial, bits, (SerialParity)parity, stop_bits );
AntonLS 1:0ba687d4196f 57 }
AntonLS 1:0ba687d4196f 58 int MySerialBase::readable()
AntonLS 1:0ba687d4196f 59 {
AntonLS 1:0ba687d4196f 60 return serial_readable( &_my_serial );
AntonLS 1:0ba687d4196f 61 }
AntonLS 1:0ba687d4196f 62 int MySerialBase::writeable()
AntonLS 1:0ba687d4196f 63 {
AntonLS 1:0ba687d4196f 64 return serial_writable( &_my_serial );
AntonLS 1:0ba687d4196f 65 }
AntonLS 5:1b9734e68327 66 void MySerialBase::attach( void (*fptr)(void), Serial::IrqType type )
AntonLS 1:0ba687d4196f 67 {
AntonLS 1:0ba687d4196f 68 if( fptr )
AntonLS 1:0ba687d4196f 69 {
AntonLS 1:0ba687d4196f 70 _my_irq[type].attach( fptr );
AntonLS 5:1b9734e68327 71 my_serial_irq_set( &_my_serial, (IrqType)type, 1 );
AntonLS 5:1b9734e68327 72
AntonLS 1:0ba687d4196f 73 } else
AntonLS 5:1b9734e68327 74 {
AntonLS 5:1b9734e68327 75 my_serial_irq_set( &_my_serial, (IrqType)type, 0 );
AntonLS 5:1b9734e68327 76 }
AntonLS 1:0ba687d4196f 77 }
AntonLS 2:fe1566cdb6e7 78 void MySerialBase::my_serial_init( serial_t *obj, PinName tx, PinName rx, PinName rts, PinName cts, int baudrate )
AntonLS 2:fe1566cdb6e7 79 {
AntonLS 2:fe1566cdb6e7 80 UARTName uart = UART_0;
AntonLS 2:fe1566cdb6e7 81 obj->uart = (NRF_UART_Type *)uart;
AntonLS 2:fe1566cdb6e7 82
AntonLS 2:fe1566cdb6e7 83 // pin configurations --
AntonLS 2:fe1566cdb6e7 84 NRF_GPIO->DIR |= (1 << tx); // TX_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 85 NRF_GPIO->DIR |= ((NC == rts) ? 0 : (1 << rts)); // RTS_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 86
AntonLS 2:fe1566cdb6e7 87 NRF_GPIO->DIR &= ~(1 << rx); // RX_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 88 NRF_GPIO->DIR &= ~((NC == cts) ? 0 : (1 << cts)); // CTS_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 89
AntonLS 2:fe1566cdb6e7 90 obj->uart->PSELRTS = ((NC == rts) ? 0xFFFFFFFF : rts); // RTS_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 91 obj->uart->PSELTXD = tx; // TX_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 92 obj->uart->PSELCTS = ((NC == cts) ? 0xFFFFFFFF : cts); // CTS_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 93 obj->uart->PSELRXD = rx; // RX_PIN_NUMBER
AntonLS 2:fe1566cdb6e7 94
AntonLS 9:95dc84e9fb7f 95 // set default baud rate and format
AntonLS 9:95dc84e9fb7f 96 serial_baud ( obj, baudrate );
AntonLS 9:95dc84e9fb7f 97 serial_format( obj, 8, ParityNone, 1 );
AntonLS 9:95dc84e9fb7f 98
AntonLS 2:fe1566cdb6e7 99 if( (NC != rts) || (NC != cts) )
AntonLS 2:fe1566cdb6e7 100 {
AntonLS 9:95dc84e9fb7f 101 obj->uart->CONFIG |= UART_CONFIG_HWFC_Msk; // Enable HWFC
AntonLS 2:fe1566cdb6e7 102
AntonLS 2:fe1566cdb6e7 103 } else
AntonLS 2:fe1566cdb6e7 104 {
AntonLS 9:95dc84e9fb7f 105 obj->uart->CONFIG &= ~UART_CONFIG_HWFC_Msk; // Disable HWFC;
AntonLS 2:fe1566cdb6e7 106 }
AntonLS 2:fe1566cdb6e7 107
AntonLS 2:fe1566cdb6e7 108 obj->uart->ENABLE = (UART_ENABLE_ENABLE_Enabled << UART_ENABLE_ENABLE_Pos);
AntonLS 2:fe1566cdb6e7 109 obj->uart->TASKS_STARTTX = 1;
AntonLS 2:fe1566cdb6e7 110 obj->uart->TASKS_STARTRX = 1;
AntonLS 2:fe1566cdb6e7 111 obj->uart->EVENTS_RXDRDY = 0;
AntonLS 2:fe1566cdb6e7 112 // dummy write needed or TXDRDY trails write rather than leads write.
AntonLS 2:fe1566cdb6e7 113 // pins are disconnected so nothing is physically transmitted on the wire
AntonLS 2:fe1566cdb6e7 114 obj->uart->TXD = 0;
AntonLS 2:fe1566cdb6e7 115
AntonLS 2:fe1566cdb6e7 116 obj->index = 0;
AntonLS 9:95dc84e9fb7f 117
AntonLS 2:fe1566cdb6e7 118 // set rx/tx pins in PullUp mode
AntonLS 2:fe1566cdb6e7 119 if (tx != NC) {
AntonLS 2:fe1566cdb6e7 120 pin_mode(tx, PullUp);
AntonLS 2:fe1566cdb6e7 121 }
AntonLS 2:fe1566cdb6e7 122 if (rx != NC) {
AntonLS 2:fe1566cdb6e7 123 pin_mode(rx, PullUp);
AntonLS 2:fe1566cdb6e7 124 }
AntonLS 2:fe1566cdb6e7 125
AntonLS 2:fe1566cdb6e7 126 // Set CTS pin to PullDown mode if used.
AntonLS 2:fe1566cdb6e7 127 if( cts != NC )
AntonLS 2:fe1566cdb6e7 128 {
AntonLS 2:fe1566cdb6e7 129 pin_mode( cts, PullDown );
AntonLS 2:fe1566cdb6e7 130 }
AntonLS 2:fe1566cdb6e7 131
AntonLS 2:fe1566cdb6e7 132
AntonLS 2:fe1566cdb6e7 133 if (uart == STDIO_UART) {
AntonLS 2:fe1566cdb6e7 134 stdio_uart_inited = 1;
AntonLS 2:fe1566cdb6e7 135 memcpy(&stdio_uart, obj, sizeof(serial_t));
AntonLS 2:fe1566cdb6e7 136 }
AntonLS 2:fe1566cdb6e7 137 }
AntonLS 7:205ef63d311a 138
AntonLS 8:d5d055be2bb8 139 // Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 6:ef758ac3c928 140 void MySerialBase::my_serial_irq_handler( serial_t *obj, uart_irq_handler handler, uint32_t id )
AntonLS 6:ef758ac3c928 141 {
AntonLS 6:ef758ac3c928 142 irq_handler = handler;
AntonLS 6:ef758ac3c928 143 serial_irq_ids[obj->index] = id;
AntonLS 6:ef758ac3c928 144 }
AntonLS 8:d5d055be2bb8 145 //
AntonLS 6:ef758ac3c928 146
AntonLS 8:d5d055be2bb8 147 // Replacement for serial_irq_set() in serial_api.c so we can grab uart errors.
AntonLS 5:1b9734e68327 148 void MySerialBase::my_serial_irq_set( serial_t *obj, IrqType irq, uint32_t enable )
AntonLS 5:1b9734e68327 149 {
AntonLS 5:1b9734e68327 150 IRQn_Type irq_n = (IRQn_Type)0;
AntonLS 5:1b9734e68327 151
AntonLS 5:1b9734e68327 152 switch( (int)obj->uart )
AntonLS 5:1b9734e68327 153 {
AntonLS 5:1b9734e68327 154 case UART_0:
AntonLS 5:1b9734e68327 155 irq_n = UART0_IRQn;
AntonLS 5:1b9734e68327 156 break;
AntonLS 5:1b9734e68327 157 }
AntonLS 5:1b9734e68327 158
AntonLS 5:1b9734e68327 159 if( enable )
AntonLS 5:1b9734e68327 160 {
AntonLS 5:1b9734e68327 161 switch( irq )
AntonLS 5:1b9734e68327 162 {
AntonLS 5:1b9734e68327 163 case RxIrq:
AntonLS 8:d5d055be2bb8 164 obj->uart->INTENSET = UART_INTENSET_RXDRDY_Msk;
AntonLS 5:1b9734e68327 165 break;
AntonLS 5:1b9734e68327 166 case TxIrq:
AntonLS 8:d5d055be2bb8 167 obj->uart->INTENSET = UART_INTENSET_TXDRDY_Msk;
AntonLS 5:1b9734e68327 168 break;
AntonLS 5:1b9734e68327 169 case ErrIrq:
AntonLS 8:d5d055be2bb8 170 obj->uart->INTENSET = UART_INTENSET_ERROR_Msk;
AntonLS 5:1b9734e68327 171 break;
AntonLS 7:205ef63d311a 172 case CtsIrq:
AntonLS 8:d5d055be2bb8 173 obj->uart->INTENSET = UART_INTENSET_CTS_Msk;
AntonLS 7:205ef63d311a 174 break;
AntonLS 7:205ef63d311a 175 case NctsIrq:
AntonLS 8:d5d055be2bb8 176 obj->uart->INTENSET = UART_INTENSET_NCTS_Msk;
AntonLS 7:205ef63d311a 177 break;
AntonLS 7:205ef63d311a 178 case RxtoIrq:
AntonLS 8:d5d055be2bb8 179 obj->uart->INTENSET = UART_INTENSET_RXTO_Msk;
AntonLS 7:205ef63d311a 180 break;
AntonLS 5:1b9734e68327 181 }
AntonLS 5:1b9734e68327 182 NVIC_SetPriority( irq_n, 3 );
AntonLS 5:1b9734e68327 183 NVIC_EnableIRQ( irq_n );
AntonLS 5:1b9734e68327 184
AntonLS 5:1b9734e68327 185 } else
AntonLS 8:d5d055be2bb8 186 { // Disable
AntonLS 5:1b9734e68327 187 switch( irq )
AntonLS 5:1b9734e68327 188 {
AntonLS 5:1b9734e68327 189 case RxIrq:
AntonLS 8:d5d055be2bb8 190 obj->uart->INTENCLR = UART_INTENCLR_RXDRDY_Msk;
AntonLS 5:1b9734e68327 191 break;
AntonLS 5:1b9734e68327 192 case TxIrq:
AntonLS 8:d5d055be2bb8 193 obj->uart->INTENCLR = UART_INTENCLR_TXDRDY_Msk;
AntonLS 5:1b9734e68327 194 break;
AntonLS 5:1b9734e68327 195 case ErrIrq:
AntonLS 8:d5d055be2bb8 196 obj->uart->INTENCLR = UART_INTENCLR_ERROR_Msk;
AntonLS 5:1b9734e68327 197 break;
AntonLS 7:205ef63d311a 198 case CtsIrq:
AntonLS 8:d5d055be2bb8 199 obj->uart->INTENCLR = UART_INTENCLR_CTS_Msk;
AntonLS 7:205ef63d311a 200 break;
AntonLS 7:205ef63d311a 201 case NctsIrq:
AntonLS 8:d5d055be2bb8 202 obj->uart->INTENCLR = UART_INTENCLR_NCTS_Msk;
AntonLS 7:205ef63d311a 203 break;
AntonLS 7:205ef63d311a 204 case RxtoIrq:
AntonLS 8:d5d055be2bb8 205 obj->uart->INTENCLR = UART_INTENCLR_RXTO_Msk;
AntonLS 7:205ef63d311a 206 break;
AntonLS 5:1b9734e68327 207 }
AntonLS 5:1b9734e68327 208
AntonLS 5:1b9734e68327 209 if( 0 == obj->uart->INTENCLR )
AntonLS 5:1b9734e68327 210 {
AntonLS 5:1b9734e68327 211 NVIC_DisableIRQ( irq_n );
AntonLS 5:1b9734e68327 212 }
AntonLS 5:1b9734e68327 213 }
AntonLS 5:1b9734e68327 214 }
AntonLS 1:0ba687d4196f 215 void MySerialBase::_irq_handler( uint32_t id, SerialIrq irq_type )
AntonLS 1:0ba687d4196f 216 {
AntonLS 1:0ba687d4196f 217 MySerialBase *handler = (MySerialBase*)id;
AntonLS 1:0ba687d4196f 218 handler->_my_irq[irq_type].call();
AntonLS 1:0ba687d4196f 219 }
AntonLS 6:ef758ac3c928 220
AntonLS 8:d5d055be2bb8 221 // Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 5:1b9734e68327 222 void MySerialBase::error_handler()
AntonLS 5:1b9734e68327 223 {
AntonLS 8:d5d055be2bb8 224 // Apparently handler will be continuously called until [error] condition is gone even though cleared.
AntonLS 5:1b9734e68327 225
AntonLS 5:1b9734e68327 226 if( (UART_ERRORSRC_OVERRUN_Present << UART_ERRORSRC_OVERRUN_Pos) == (UART_ERRORSRC_OVERRUN_Msk & _my_serial.uart->ERRORSRC) )
AntonLS 5:1b9734e68327 227 {
AntonLS 5:1b9734e68327 228 puts( "\r\n[ERR: OVERRUN]\r\n" );
AntonLS 5:1b9734e68327 229
AntonLS 5:1b9734e68327 230 // Clear the error
AntonLS 5:1b9734e68327 231 _my_serial.uart->ERRORSRC = (UART_ERRORSRC_OVERRUN_Clear << UART_ERRORSRC_OVERRUN_Pos);
AntonLS 8:d5d055be2bb8 232
AntonLS 8:d5d055be2bb8 233 } else if( (UART_ERRORSRC_PARITY_Present << UART_ERRORSRC_PARITY_Pos) == (UART_ERRORSRC_PARITY_Msk & _my_serial.uart->ERRORSRC) )
AntonLS 8:d5d055be2bb8 234 {
AntonLS 8:d5d055be2bb8 235 puts( "\r\n[ERR: PARITY]\r\n" );
AntonLS 8:d5d055be2bb8 236
AntonLS 8:d5d055be2bb8 237 // Clear the error
AntonLS 8:d5d055be2bb8 238 _my_serial.uart->ERRORSRC = (UART_ERRORSRC_PARITY_Clear << UART_ERRORSRC_PARITY_Pos);
AntonLS 8:d5d055be2bb8 239
AntonLS 8:d5d055be2bb8 240 } else if( (UART_ERRORSRC_FRAMING_Present << UART_ERRORSRC_FRAMING_Pos) == (UART_ERRORSRC_FRAMING_Msk & _my_serial.uart->ERRORSRC) )
AntonLS 8:d5d055be2bb8 241 {
AntonLS 8:d5d055be2bb8 242 puts( "\r\n[ERR: FRAMING]\r\n" );
AntonLS 8:d5d055be2bb8 243
AntonLS 8:d5d055be2bb8 244 // Clear the error
AntonLS 8:d5d055be2bb8 245 _my_serial.uart->ERRORSRC = (UART_ERRORSRC_FRAMING_Clear << UART_ERRORSRC_FRAMING_Pos);
AntonLS 8:d5d055be2bb8 246
AntonLS 8:d5d055be2bb8 247 } else if( (UART_ERRORSRC_BREAK_Present << UART_ERRORSRC_BREAK_Pos) == (UART_ERRORSRC_BREAK_Msk & _my_serial.uart->ERRORSRC) )
AntonLS 8:d5d055be2bb8 248 {
AntonLS 8:d5d055be2bb8 249 puts( "\r\n[ERR: BREAK]\r\n" );
AntonLS 8:d5d055be2bb8 250
AntonLS 8:d5d055be2bb8 251 // Clear the error
AntonLS 8:d5d055be2bb8 252 _my_serial.uart->ERRORSRC = (UART_ERRORSRC_BREAK_Clear << UART_ERRORSRC_BREAK_Pos);
AntonLS 8:d5d055be2bb8 253
AntonLS 8:d5d055be2bb8 254 } else
AntonLS 8:d5d055be2bb8 255 {
AntonLS 8:d5d055be2bb8 256 // Clear the error interrupt...
AntonLS 8:d5d055be2bb8 257 _my_serial.uart->EVENTS_ERROR = 0;
AntonLS 8:d5d055be2bb8 258 }
AntonLS 5:1b9734e68327 259 }
AntonLS 6:ef758ac3c928 260
AntonLS 8:d5d055be2bb8 261 // Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 6:ef758ac3c928 262 void MySerialBase::cts_handler()
AntonLS 6:ef758ac3c928 263 {
AntonLS 8:d5d055be2bb8 264 // Clear interrupt.
AntonLS 8:d5d055be2bb8 265 _my_serial.uart->EVENTS_CTS = 0;
AntonLS 8:d5d055be2bb8 266
AntonLS 8:d5d055be2bb8 267 // puts( "\r\n[CTS: Clear]\r\n" );
AntonLS 8:d5d055be2bb8 268 }
AntonLS 8:d5d055be2bb8 269
AntonLS 8:d5d055be2bb8 270 // Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 8:d5d055be2bb8 271 void MySerialBase::ncts_handler()
AntonLS 8:d5d055be2bb8 272 {
AntonLS 8:d5d055be2bb8 273 // Attempt to clear interrupt.
AntonLS 8:d5d055be2bb8 274 _my_serial.uart->EVENTS_NCTS = 0;
AntonLS 8:d5d055be2bb8 275
AntonLS 6:ef758ac3c928 276 puts( "\r\n[CTS: High]\r\n" );
AntonLS 6:ef758ac3c928 277 }
AntonLS 6:ef758ac3c928 278
AntonLS 1:0ba687d4196f 279 int MySerialBase::_base_getc()
AntonLS 1:0ba687d4196f 280 {
AntonLS 1:0ba687d4196f 281 return serial_getc( &_my_serial );
AntonLS 1:0ba687d4196f 282 }
AntonLS 1:0ba687d4196f 283 int MySerialBase::_base_putc( int c )
AntonLS 1:0ba687d4196f 284 {
AntonLS 1:0ba687d4196f 285 serial_putc( &_my_serial, c );
AntonLS 1:0ba687d4196f 286 return c;
AntonLS 1:0ba687d4196f 287 }
AntonLS 8:d5d055be2bb8 288
AntonLS 1:0ba687d4196f 289 void MySerialBase::send_break()
AntonLS 1:0ba687d4196f 290 {
AntonLS 1:0ba687d4196f 291 // Wait for 1.5 frames before clearing the break condition
AntonLS 1:0ba687d4196f 292 // This will have different effects on our platforms, but should
AntonLS 1:0ba687d4196f 293 // ensure that we keep the break active for at least one frame.
AntonLS 1:0ba687d4196f 294 // We consider a full frame (1 start bit + 8 data bits bits +
AntonLS 1:0ba687d4196f 295 // 1 parity bit + 2 stop bits = 12 bits) for computation.
AntonLS 1:0ba687d4196f 296 // One bit time (in us) = 1000000/_my_baud
AntonLS 1:0ba687d4196f 297 // Twelve bits: 12000000/baud delay
AntonLS 1:0ba687d4196f 298 // 1.5 frames: 18000000/baud delay
AntonLS 1:0ba687d4196f 299 serial_break_set( &_my_serial );
AntonLS 1:0ba687d4196f 300 wait_us( 18000000/_my_baud );
AntonLS 1:0ba687d4196f 301 serial_break_clear( &_my_serial );
AntonLS 1:0ba687d4196f 302 }
AntonLS 1:0ba687d4196f 303
AntonLS 1:0ba687d4196f 304
AntonLS 1:0ba687d4196f 305 MySerial::MySerial( PinName tx, PinName rx, const char *name,
AntonLS 1:0ba687d4196f 306 PinName rts, PinName cts ) : MySerialBase( tx, rx, rts, cts ), Stream( name )
AntonLS 1:0ba687d4196f 307 {
AntonLS 1:0ba687d4196f 308 }
AntonLS 1:0ba687d4196f 309 int MySerial::_getc()
AntonLS 1:0ba687d4196f 310 {
AntonLS 1:0ba687d4196f 311 return _base_getc();
AntonLS 1:0ba687d4196f 312 }
AntonLS 1:0ba687d4196f 313 int MySerial::_putc( int c )
AntonLS 1:0ba687d4196f 314 {
AntonLS 1:0ba687d4196f 315 return _base_putc( c );
AntonLS 1:0ba687d4196f 316 }
AntonLS 1:0ba687d4196f 317 int MySerial::puts( const char *str )
AntonLS 1:0ba687d4196f 318 {
AntonLS 1:0ba687d4196f 319 while( *str )
AntonLS 1:0ba687d4196f 320 putc( *str ++ );
AntonLS 1:0ba687d4196f 321
AntonLS 1:0ba687d4196f 322 return 0;
AntonLS 1:0ba687d4196f 323 }
AntonLS 4:17b8edf264c3 324
AntonLS 1:0ba687d4196f 325 int MySerial::printf( const char *format, ... )
AntonLS 1:0ba687d4196f 326 {
AntonLS 1:0ba687d4196f 327 va_list arg;
AntonLS 1:0ba687d4196f 328 va_start( arg, format );
AntonLS 1:0ba687d4196f 329
AntonLS 1:0ba687d4196f 330 int len = MySerial::vprintf( format, arg );
AntonLS 1:0ba687d4196f 331
AntonLS 1:0ba687d4196f 332 va_end( arg );
AntonLS 1:0ba687d4196f 333
AntonLS 1:0ba687d4196f 334 return len;
AntonLS 1:0ba687d4196f 335 }
AntonLS 1:0ba687d4196f 336 int MySerial::vprintf( const char *format, va_list arg )
AntonLS 1:0ba687d4196f 337 {
AntonLS 1:0ba687d4196f 338 int len = vsnprintf( NULL, 0, format, arg );
AntonLS 1:0ba687d4196f 339 if( len < STRING_STACK_LIMIT )
AntonLS 1:0ba687d4196f 340 {
AntonLS 1:0ba687d4196f 341 char temp[STRING_STACK_LIMIT];
AntonLS 1:0ba687d4196f 342 vsprintf( temp, format, arg );
AntonLS 1:0ba687d4196f 343 puts( temp );
AntonLS 1:0ba687d4196f 344
AntonLS 1:0ba687d4196f 345 } else
AntonLS 1:0ba687d4196f 346 {
AntonLS 1:0ba687d4196f 347 char *temp = new char[len + 1];
AntonLS 1:0ba687d4196f 348 vsprintf( temp, format, arg );
AntonLS 1:0ba687d4196f 349 puts( temp );
AntonLS 1:0ba687d4196f 350 delete[] temp;
AntonLS 1:0ba687d4196f 351 }
AntonLS 1:0ba687d4196f 352
AntonLS 1:0ba687d4196f 353 return len;
AntonLS 1:0ba687d4196f 354 }
AntonLS 1:0ba687d4196f 355
AntonLS 8:d5d055be2bb8 356 // Won't work unless UART0_IRQHandler is commented-out in serial_api.c (rebuild mbed lib.)
AntonLS 6:ef758ac3c928 357 #ifdef __cplusplus
AntonLS 6:ef758ac3c928 358 extern "C"
AntonLS 6:ef758ac3c928 359 {
AntonLS 6:ef758ac3c928 360 #endif
AntonLS 8:d5d055be2bb8 361 void UART0_IRQHandler()
AntonLS 6:ef758ac3c928 362 {
AntonLS 6:ef758ac3c928 363 MySerial::IrqType irq_type;
AntonLS 6:ef758ac3c928 364
AntonLS 6:ef758ac3c928 365 if( (NRF_UART0->INTENSET & UART_INTENSET_TXDRDY_Msk) && NRF_UART0->EVENTS_TXDRDY )
AntonLS 6:ef758ac3c928 366 {
AntonLS 6:ef758ac3c928 367 irq_type = MySerial::TxIrq;
AntonLS 6:ef758ac3c928 368
AntonLS 6:ef758ac3c928 369 } else if( (NRF_UART0->INTENSET & UART_INTENSET_RXDRDY_Msk) && NRF_UART0->EVENTS_RXDRDY )
AntonLS 6:ef758ac3c928 370 {
AntonLS 6:ef758ac3c928 371 irq_type = MySerial::RxIrq;
AntonLS 6:ef758ac3c928 372
AntonLS 6:ef758ac3c928 373 } else if( (NRF_UART0->INTENSET & UART_INTENSET_ERROR_Msk) && NRF_UART0->EVENTS_ERROR )
AntonLS 6:ef758ac3c928 374 {
AntonLS 6:ef758ac3c928 375 irq_type = MySerial::ErrIrq;
AntonLS 6:ef758ac3c928 376
AntonLS 6:ef758ac3c928 377 } else if( (NRF_UART0->INTENSET & UART_INTENSET_CTS_Msk) && NRF_UART0->EVENTS_CTS )
AntonLS 6:ef758ac3c928 378 {
AntonLS 6:ef758ac3c928 379 irq_type = MySerial::CtsIrq;
AntonLS 6:ef758ac3c928 380
AntonLS 6:ef758ac3c928 381 } else if( (NRF_UART0->INTENSET & UART_INTENSET_NCTS_Msk) && NRF_UART0->EVENTS_NCTS )
AntonLS 6:ef758ac3c928 382 {
AntonLS 6:ef758ac3c928 383 irq_type = MySerial::NctsIrq;
AntonLS 6:ef758ac3c928 384
AntonLS 6:ef758ac3c928 385 } else if( (NRF_UART0->INTENSET & UART_INTENSET_RXTO_Msk) && NRF_UART0->EVENTS_RXTO )
AntonLS 6:ef758ac3c928 386 {
AntonLS 6:ef758ac3c928 387 irq_type = MySerial::RxtoIrq;
AntonLS 6:ef758ac3c928 388
AntonLS 6:ef758ac3c928 389 } else
AntonLS 6:ef758ac3c928 390 {
AntonLS 6:ef758ac3c928 391 return;
AntonLS 6:ef758ac3c928 392 }
AntonLS 6:ef758ac3c928 393
AntonLS 6:ef758ac3c928 394 if( serial_irq_ids[0] != 0 )
AntonLS 6:ef758ac3c928 395 {
AntonLS 6:ef758ac3c928 396 irq_handler( serial_irq_ids[0], (SerialIrq)irq_type );
AntonLS 6:ef758ac3c928 397 }
AntonLS 6:ef758ac3c928 398 }
AntonLS 6:ef758ac3c928 399 #ifdef __cplusplus
AntonLS 6:ef758ac3c928 400 }
AntonLS 6:ef758ac3c928 401 #endif
AntonLS 8:d5d055be2bb8 402 //
AntonLS 7:205ef63d311a 403
AntonLS 1:0ba687d4196f 404 /* EOF */