Renjian Hao / Mbed 2 deprecated Fish_2014Fall

Renjian Hao

Dependencies:   L3G4200D L3GD20 LSM303DLHC LSM303DLM PwmIn Servo mbed

Fork of Fish_2014Fall by Zhan Tu

iSerial/iSerial.cpp@5:a5f0395d2fa4, 2015-08-13 (annotated)

Committer:
RenjianHao
Date:
Thu Aug 13 18:37:15 2015 +0000
Revision:
5:a5f0395d2fa4
Parent:
0:8f37781c0054 
Renjian Hao2015/8/13

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tzxl10000 0:8f37781c0054 1 //
tzxl10000 0:8f37781c0054 2 // iSerial.cpp ... Serial Driver with Interrupt Rec/Send
tzxl10000 0:8f37781c0054 3 //
tzxl10000 0:8f37781c0054 4 // 2009.11.13 ... Originally written by Y.Kuroda for Renesas H83664
tzxl10000 0:8f37781c0054 5 // 2012.08.31 ... Code convert for mbed in C++
tzxl10000 0:8f37781c0054 6 //
tzxl10000 0:8f37781c0054 7 #include <stdarg.h>
tzxl10000 0:8f37781c0054 8 #include "mbed.h"
tzxl10000 0:8f37781c0054 9 #include "RingBuffer.h"
tzxl10000 0:8f37781c0054 10 #include "iSerial.h"
tzxl10000 0:8f37781c0054 11
tzxl10000 0:8f37781c0054 12 //DigitalOut led3(LED3);
tzxl10000 0:8f37781c0054 13 //DigitalOut led4(LED4);
tzxl10000 0:8f37781c0054 14
tzxl10000 0:8f37781c0054 15
tzxl10000 0:8f37781c0054 16 void
tzxl10000 0:8f37781c0054 17 iSerial::enable_uart_irq(void)
tzxl10000 0:8f37781c0054 18 {
tzxl10000 0:8f37781c0054 19 switch(tx){
tzxl10000 0:8f37781c0054 20 case USBTX:
tzxl10000 0:8f37781c0054 21 #if defined(TARGET_LPC1768)
tzxl10000 0:8f37781c0054 22 NVIC_EnableIRQ(UART2_IRQn);
tzxl10000 0:8f37781c0054 23 #elif defined(TARGET_LPC11U24)
tzxl10000 0:8f37781c0054 24 NVIC_EnableIRQ(UART_IRQn);
tzxl10000 0:8f37781c0054 25 #endif
tzxl10000 0:8f37781c0054 26 // led1 = !led1;
tzxl10000 0:8f37781c0054 27 break;
tzxl10000 0:8f37781c0054 28
tzxl10000 0:8f37781c0054 29 case p9:
tzxl10000 0:8f37781c0054 30 #if defined(TARGET_LPC1768)
tzxl10000 0:8f37781c0054 31 NVIC_EnableIRQ(UART1_IRQn);
tzxl10000 0:8f37781c0054 32 #elif defined(TARGET_LPC11U24)
tzxl10000 0:8f37781c0054 33 NVIC_EnableIRQ(UART_IRQn);
tzxl10000 0:8f37781c0054 34 #endif
tzxl10000 0:8f37781c0054 35 break;
tzxl10000 0:8f37781c0054 36
tzxl10000 0:8f37781c0054 37 #if defined(TARGET_LPC1768)
tzxl10000 0:8f37781c0054 38 case p13:
tzxl10000 0:8f37781c0054 39 NVIC_EnableIRQ(UART3_IRQn);
tzxl10000 0:8f37781c0054 40 break;
tzxl10000 0:8f37781c0054 41 case p28:
tzxl10000 0:8f37781c0054 42 NVIC_EnableIRQ(UART0_IRQn);
tzxl10000 0:8f37781c0054 43 break;
tzxl10000 0:8f37781c0054 44 #endif
tzxl10000 0:8f37781c0054 45 }
tzxl10000 0:8f37781c0054 46 }
tzxl10000 0:8f37781c0054 47
tzxl10000 0:8f37781c0054 48 void
tzxl10000 0:8f37781c0054 49 iSerial::disable_uart_irq(void)
tzxl10000 0:8f37781c0054 50 {
tzxl10000 0:8f37781c0054 51 switch(tx){
tzxl10000 0:8f37781c0054 52 case USBTX:
tzxl10000 0:8f37781c0054 53 #if defined(TARGET_LPC1768)
tzxl10000 0:8f37781c0054 54 NVIC_DisableIRQ(UART2_IRQn);
tzxl10000 0:8f37781c0054 55 #elif defined(TARGET_LPC11U24)
tzxl10000 0:8f37781c0054 56 NVIC_DisableIRQ(UART_IRQn);
tzxl10000 0:8f37781c0054 57 #endif
tzxl10000 0:8f37781c0054 58 // led1 = !led1;
tzxl10000 0:8f37781c0054 59 break;
tzxl10000 0:8f37781c0054 60
tzxl10000 0:8f37781c0054 61 case p9:
tzxl10000 0:8f37781c0054 62 #if defined(TARGET_LPC1768)
tzxl10000 0:8f37781c0054 63 NVIC_DisableIRQ(UART1_IRQn);
tzxl10000 0:8f37781c0054 64 #elif defined(TARGET_LPC11U24)
tzxl10000 0:8f37781c0054 65 NVIC_DisableIRQ(UART_IRQn);
tzxl10000 0:8f37781c0054 66 #endif
tzxl10000 0:8f37781c0054 67 break;
tzxl10000 0:8f37781c0054 68
tzxl10000 0:8f37781c0054 69 #if defined(TARGET_LPC1768)
tzxl10000 0:8f37781c0054 70 case p13:
tzxl10000 0:8f37781c0054 71 NVIC_DisableIRQ(UART3_IRQn);
tzxl10000 0:8f37781c0054 72 break;
tzxl10000 0:8f37781c0054 73 case p28:
tzxl10000 0:8f37781c0054 74 NVIC_DisableIRQ(UART0_IRQn);
tzxl10000 0:8f37781c0054 75 break;
tzxl10000 0:8f37781c0054 76 #endif
tzxl10000 0:8f37781c0054 77 }
tzxl10000 0:8f37781c0054 78 }
tzxl10000 0:8f37781c0054 79
tzxl10000 0:8f37781c0054 80 /*
tzxl10000 0:8f37781c0054 81 * Interrupt Function
tzxl10000 0:8f37781c0054 82 */
tzxl10000 0:8f37781c0054 83 void
tzxl10000 0:8f37781c0054 84 iSerial::rx_handler(void)
tzxl10000 0:8f37781c0054 85 {
tzxl10000 0:8f37781c0054 86 // led3 = 1;
tzxl10000 0:8f37781c0054 87 while(Serial::readable())
tzxl10000 0:8f37781c0054 88 rxbuf.save(Serial::getc());
tzxl10000 0:8f37781c0054 89 // led3 = 0;
tzxl10000 0:8f37781c0054 90 }
tzxl10000 0:8f37781c0054 91
tzxl10000 0:8f37781c0054 92 void
tzxl10000 0:8f37781c0054 93 iSerial::tx_handler(void)
tzxl10000 0:8f37781c0054 94 {
tzxl10000 0:8f37781c0054 95 // led4 = 1;
tzxl10000 0:8f37781c0054 96 while(Serial::writeable() && txbuf.check())
tzxl10000 0:8f37781c0054 97 Serial::putc( txbuf.read() );
tzxl10000 0:8f37781c0054 98 // led4 = 0;
tzxl10000 0:8f37781c0054 99 }
tzxl10000 0:8f37781c0054 100
tzxl10000 0:8f37781c0054 101 iSerial::iSerial(PinName _tx, PinName _rx, int _txbufsize, int _rxbufsize)
tzxl10000 0:8f37781c0054 102 : Serial(_tx, _rx),
tzxl10000 0:8f37781c0054 103 tx(_tx),
tzxl10000 0:8f37781c0054 104 rx(_rx),
tzxl10000 0:8f37781c0054 105 txbufsize(_txbufsize),
tzxl10000 0:8f37781c0054 106 rxbufsize(_rxbufsize),
tzxl10000 0:8f37781c0054 107 txbuf(RingBuffer(txbufsize)),
tzxl10000 0:8f37781c0054 108 rxbuf(RingBuffer(rxbufsize)),
tzxl10000 0:8f37781c0054 109 str(new char [txbufsize])
tzxl10000 0:8f37781c0054 110 {
tzxl10000 0:8f37781c0054 111 __disable_irq();
tzxl10000 0:8f37781c0054 112
tzxl10000 0:8f37781c0054 113 attach(this, &iSerial::tx_handler, Serial::TxIrq);
tzxl10000 0:8f37781c0054 114 attach(this, &iSerial::rx_handler, Serial::RxIrq);
tzxl10000 0:8f37781c0054 115
tzxl10000 0:8f37781c0054 116 // format(8,Serial::None,1); // default
tzxl10000 0:8f37781c0054 117 // baud(baudrate);
tzxl10000 0:8f37781c0054 118
tzxl10000 0:8f37781c0054 119 __enable_irq();
tzxl10000 0:8f37781c0054 120 enable_uart_irq();
tzxl10000 0:8f37781c0054 121 }
tzxl10000 0:8f37781c0054 122
tzxl10000 0:8f37781c0054 123 iSerial::~iSerial()
tzxl10000 0:8f37781c0054 124 {
tzxl10000 0:8f37781c0054 125 delete [] str;
tzxl10000 0:8f37781c0054 126 }
tzxl10000 0:8f37781c0054 127
tzxl10000 0:8f37781c0054 128 int
tzxl10000 0:8f37781c0054 129 iSerial::readable(void)
tzxl10000 0:8f37781c0054 130 {
tzxl10000 0:8f37781c0054 131 return rxbuf.check();
tzxl10000 0:8f37781c0054 132 }
tzxl10000 0:8f37781c0054 133
tzxl10000 0:8f37781c0054 134 int
tzxl10000 0:8f37781c0054 135 iSerial::getc(void)
tzxl10000 0:8f37781c0054 136 {
tzxl10000 0:8f37781c0054 137 unsigned short int c;
tzxl10000 0:8f37781c0054 138
tzxl10000 0:8f37781c0054 139 while(!rxbuf.check()); // wait receiving a character
tzxl10000 0:8f37781c0054 140 disable_uart_irq();
tzxl10000 0:8f37781c0054 141 c = rxbuf.read();
tzxl10000 0:8f37781c0054 142 enable_uart_irq();
tzxl10000 0:8f37781c0054 143
tzxl10000 0:8f37781c0054 144 return c;
tzxl10000 0:8f37781c0054 145 }
tzxl10000 0:8f37781c0054 146
tzxl10000 0:8f37781c0054 147 void
tzxl10000 0:8f37781c0054 148 iSerial::putc(short ch)
tzxl10000 0:8f37781c0054 149 {
tzxl10000 0:8f37781c0054 150 if(txbuf.check()==0 && Serial::writeable()){
tzxl10000 0:8f37781c0054 151 Serial::putc(ch);
tzxl10000 0:8f37781c0054 152
tzxl10000 0:8f37781c0054 153 } else {
tzxl10000 0:8f37781c0054 154 while(txbuf.full()){
tzxl10000 0:8f37781c0054 155 disable_uart_irq();
tzxl10000 0:8f37781c0054 156 tx_handler();
tzxl10000 0:8f37781c0054 157 enable_uart_irq();
tzxl10000 0:8f37781c0054 158 }
tzxl10000 0:8f37781c0054 159
tzxl10000 0:8f37781c0054 160 disable_uart_irq();
tzxl10000 0:8f37781c0054 161 txbuf.save(ch);
tzxl10000 0:8f37781c0054 162 enable_uart_irq();
tzxl10000 0:8f37781c0054 163 }
tzxl10000 0:8f37781c0054 164 }
tzxl10000 0:8f37781c0054 165
tzxl10000 0:8f37781c0054 166 short int
tzxl10000 0:8f37781c0054 167 iSerial::putstr(const char* s)
tzxl10000 0:8f37781c0054 168 {
tzxl10000 0:8f37781c0054 169 int i=0;
tzxl10000 0:8f37781c0054 170 for(; ; i++){
tzxl10000 0:8f37781c0054 171 if(*s==0) break;
tzxl10000 0:8f37781c0054 172 putc(*s++);
tzxl10000 0:8f37781c0054 173 }
tzxl10000 0:8f37781c0054 174 return i;
tzxl10000 0:8f37781c0054 175 }
tzxl10000 0:8f37781c0054 176
tzxl10000 0:8f37781c0054 177 short int
tzxl10000 0:8f37781c0054 178 iSerial::puts(const char* s)
tzxl10000 0:8f37781c0054 179 {
tzxl10000 0:8f37781c0054 180 short int n = putstr(s);
tzxl10000 0:8f37781c0054 181 putc(CR);
tzxl10000 0:8f37781c0054 182 putc(LF);
tzxl10000 0:8f37781c0054 183 return n;
tzxl10000 0:8f37781c0054 184 }
tzxl10000 0:8f37781c0054 185
tzxl10000 0:8f37781c0054 186 char*
tzxl10000 0:8f37781c0054 187 iSerial::printf(const char* format, ...)
tzxl10000 0:8f37781c0054 188 {
tzxl10000 0:8f37781c0054 189 va_list arg;
tzxl10000 0:8f37781c0054 190 va_start(arg,format);
tzxl10000 0:8f37781c0054 191 vsprintf(str, format, arg);
tzxl10000 0:8f37781c0054 192 va_end(arg);
tzxl10000 0:8f37781c0054 193 putstr(str);
tzxl10000 0:8f37781c0054 194 return str;
tzxl10000 0:8f37781c0054 195 }
tzxl10000 0:8f37781c0054 196
tzxl10000 0:8f37781c0054 197
tzxl10000 0:8f37781c0054 198 void
tzxl10000 0:8f37781c0054 199 iSerial::flush(void)
tzxl10000 0:8f37781c0054 200 {
tzxl10000 0:8f37781c0054 201 while(txbuf.check())
tzxl10000 0:8f37781c0054 202 enable_uart_irq();
tzxl10000 0:8f37781c0054 203 }
tzxl10000 0:8f37781c0054 204
tzxl10000 0:8f37781c0054 205