CUBEBITE / Mbed 2 deprecated 161006_BDK_SPIslave

161006_BDK_SPIslave

Dependencies:   mbed

Fork of Nucleo_SPIslave_F303K8_KSS by CUBEBITE

main.cpp@4:cc97d7a33efc, 2016-10-06 (annotated)

Committer:
bcup
Date:
Thu Oct 06 00:11:39 2016 +0000
Revision:
4:cc97d7a33efc
Parent:
3:4bb95aa46ebc 
161006_BDK_SPIslave

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bcup 0:24e90e3ca3f4 1 #include "mbed.h"
bcup 0:24e90e3ca3f4 2
bcup 0:24e90e3ca3f4 3 #define DEBUG_SPI
bcup 0:24e90e3ca3f4 4
bcup 0:24e90e3ca3f4 5 #ifdef DEBUG_SPI
bcup 0:24e90e3ca3f4 6 #define PRINTD(arg1,arg2...) printf(arg1,##arg2)
bcup 0:24e90e3ca3f4 7 #endif
bcup 0:24e90e3ca3f4 8
gandol2 3:4bb95aa46ebc 9
gandol2 3:4bb95aa46ebc 10 #define SPI_MOSI PA_7
gandol2 3:4bb95aa46ebc 11 #define SPI_MISO PA_6
gandol2 3:4bb95aa46ebc 12 #define SPI_SCLK PA_5
gandol2 3:4bb95aa46ebc 13 #define SPI_SSEL PA_4
gandol2 3:4bb95aa46ebc 14
gandol2 3:4bb95aa46ebc 15
gandol2 3:4bb95aa46ebc 16 SPISlave spi_slave(SPI_MOSI, SPI_MISO, SPI_SCLK, SPI_SSEL); // MOSI, MISO, SCLK(CLK), SSEL(CS)=NC
gandol2 3:4bb95aa46ebc 17 Serial pc_serial(USBTX, USBRX);
bcup 0:24e90e3ca3f4 18
bcup 2:5311ad7c83e6 19 void SPI_SlaveInit()
bcup 0:24e90e3ca3f4 20 {
bcup 2:5311ad7c83e6 21 PRINTD("Set the SPI SLAVE format\n");
gandol2 3:4bb95aa46ebc 22 spi_slave.format(8,0); // setup 8bit 0 mode
bcup 2:5311ad7c83e6 23 PRINTD("Set the SPI SLAVE frequency\n");
gandol2 3:4bb95aa46ebc 24 spi_slave.frequency(); // default 1MHz
bcup 0:24e90e3ca3f4 25 }
bcup 0:24e90e3ca3f4 26
bcup 2:5311ad7c83e6 27 void SPI_SlaveWrite()
bcup 0:24e90e3ca3f4 28 {
bcup 2:5311ad7c83e6 29 char tx_buffer[255]={0};
bcup 2:5311ad7c83e6 30 char reply;
bcup 2:5311ad7c83e6 31 char i;
bcup 1:3a338e553a54 32 char temp;
bcup 2:5311ad7c83e6 33 char tx_cnt = 0;
bcup 2:5311ad7c83e6 34 int value;
bcup 2:5311ad7c83e6 35 PRINTD("Input Strging=");
bcup 0:24e90e3ca3f4 36 while(1)
bcup 0:24e90e3ca3f4 37 {
bcup 0:24e90e3ca3f4 38
bcup 0:24e90e3ca3f4 39 temp=getchar();
bcup 2:5311ad7c83e6 40 tx_buffer[tx_cnt++]=temp;
bcup 0:24e90e3ca3f4 41 if(temp==0x0d)
bcup 0:24e90e3ca3f4 42 {
bcup 0:24e90e3ca3f4 43 tx_buffer[tx_cnt]=0;
bcup 0:24e90e3ca3f4 44 PRINTD("\nData send Finish...\n");
bcup 0:24e90e3ca3f4 45 for(i=0;i<=tx_cnt;++i)
bcup 0:24e90e3ca3f4 46 {
bcup 0:24e90e3ca3f4 47 PRINTD("%c[%02x]",tx_buffer[i],tx_buffer[i]);
bcup 0:24e90e3ca3f4 48 }
bcup 0:24e90e3ca3f4 49 PRINTD("\n\n");
bcup 0:24e90e3ca3f4 50 for(i=0;i<=tx_cnt;++i)
bcup 0:24e90e3ca3f4 51 {
bcup 0:24e90e3ca3f4 52 value=tx_buffer[i];
bcup 2:5311ad7c83e6 53 PRINTD("write[%d]=%c[%02x]\n",i,value,value);
gandol2 3:4bb95aa46ebc 54 spi_slave.reply(value);
bcup 0:24e90e3ca3f4 55 }
bcup 2:5311ad7c83e6 56 for(i=0;i<tx_cnt;++i)
bcup 0:24e90e3ca3f4 57 {
bcup 0:24e90e3ca3f4 58 tx_buffer[i]=0;
bcup 2:5311ad7c83e6 59 PRINTD("init_tx_buf[%d]=%c\n",i,tx_buffer[i]);
bcup 0:24e90e3ca3f4 60 }
bcup 2:5311ad7c83e6 61 tx_cnt=0;
bcup 2:5311ad7c83e6 62 PRINTD("break\n");
bcup 2:5311ad7c83e6 63 break;
bcup 0:24e90e3ca3f4 64 }
bcup 0:24e90e3ca3f4 65 else
bcup 0:24e90e3ca3f4 66 {
bcup 0:24e90e3ca3f4 67 PRINTD("%c[%02x]",tx_buffer[tx_cnt],tx_buffer[tx_cnt]);
bcup 0:24e90e3ca3f4 68 }
bcup 0:24e90e3ca3f4 69 }
bcup 2:5311ad7c83e6 70 return;
bcup 0:24e90e3ca3f4 71 }
bcup 0:24e90e3ca3f4 72
bcup 0:24e90e3ca3f4 73 int main()
bcup 0:24e90e3ca3f4 74 {
gandol2 3:4bb95aa46ebc 75 char serialTxReadyFlag = 0;
gandol2 3:4bb95aa46ebc 76 int spiRxTempBuf = 0;
gandol2 3:4bb95aa46ebc 77 char spiRxBuf[255];
gandol2 3:4bb95aa46ebc 78 int spiRxTempCnt = 0;
gandol2 3:4bb95aa46ebc 79 int spiRxLen = 0;
gandol2 3:4bb95aa46ebc 80
gandol2 3:4bb95aa46ebc 81
gandol2 3:4bb95aa46ebc 82 int spiTxCnt = 0;
gandol2 3:4bb95aa46ebc 83 char spiTxReadyFlag = 0;
gandol2 3:4bb95aa46ebc 84
gandol2 3:4bb95aa46ebc 85 char serialRxBuf[255];
gandol2 3:4bb95aa46ebc 86 int serialRxLen = 0;
gandol2 3:4bb95aa46ebc 87
gandol2 3:4bb95aa46ebc 88 SPI_SlaveInit();
gandol2 3:4bb95aa46ebc 89 spi_slave.reply(0x00); // Prime SPI with first reply
gandol2 3:4bb95aa46ebc 90
gandol2 3:4bb95aa46ebc 91
gandol2 3:4bb95aa46ebc 92 pc_serial.printf("\n\n========== KSS SPI Slave [Start] ==========\n");
gandol2 3:4bb95aa46ebc 93
gandol2 3:4bb95aa46ebc 94 while(1)
gandol2 3:4bb95aa46ebc 95 {
gandol2 3:4bb95aa46ebc 96 if(spi_slave.receive()) // wait SPI data input...
gandol2 3:4bb95aa46ebc 97 {
gandol2 3:4bb95aa46ebc 98 spiRxTempBuf = spi_slave.read();
gandol2 3:4bb95aa46ebc 99 spiRxBuf[spiRxTempCnt++] = spiRxTempBuf;
gandol2 3:4bb95aa46ebc 100
gandol2 3:4bb95aa46ebc 101 if(0x00 == spiRxTempBuf)
gandol2 3:4bb95aa46ebc 102 {
gandol2 3:4bb95aa46ebc 103 serialTxReadyFlag = 1;
gandol2 3:4bb95aa46ebc 104 //pc_serial.printf("SPI Recive Byte [%d]\n", spiRxTempCnt-1);
gandol2 3:4bb95aa46ebc 105 spiRxLen = strlen(spiRxBuf);
gandol2 3:4bb95aa46ebc 106 spiRxTempCnt = 0;
gandol2 3:4bb95aa46ebc 107 }
gandol2 3:4bb95aa46ebc 108 }
gandol2 3:4bb95aa46ebc 109 if(1 == serialTxReadyFlag)
gandol2 3:4bb95aa46ebc 110 {
gandol2 3:4bb95aa46ebc 111 serialTxReadyFlag = 0;
gandol2 3:4bb95aa46ebc 112 pc_serial.printf("len=[%d] %s\n", spiRxLen, spiRxBuf);
gandol2 3:4bb95aa46ebc 113 }
gandol2 3:4bb95aa46ebc 114
gandol2 3:4bb95aa46ebc 115
gandol2 3:4bb95aa46ebc 116
gandol2 3:4bb95aa46ebc 117
bcup 4:cc97d7a33efc 118 /* TODO "serial -> slave ----(SPI)-----> " */
gandol2 3:4bb95aa46ebc 119
gandol2 3:4bb95aa46ebc 120 if(0 != pc_serial.readable()) // wait serial input..
gandol2 3:4bb95aa46ebc 121 {
gandol2 3:4bb95aa46ebc 122 pc_serial.scanf("%s", serialRxBuf);
gandol2 3:4bb95aa46ebc 123 serialRxLen = strlen(serialRxBuf);
gandol2 3:4bb95aa46ebc 124 pc_serial.printf("len=[%d] %s\n", serialRxLen, serialRxBuf);
gandol2 3:4bb95aa46ebc 125 spiTxReadyFlag = 1;
gandol2 3:4bb95aa46ebc 126 }
gandol2 3:4bb95aa46ebc 127 if(1 == spiTxReadyFlag)
gandol2 3:4bb95aa46ebc 128 {
bcup 4:cc97d7a33efc 129 PRINTD("spiTxReadyFlag=%d\n",spiTxReadyFlag);
gandol2 3:4bb95aa46ebc 130 // SPI Send Start
gandol2 3:4bb95aa46ebc 131
bcup 4:cc97d7a33efc 132 #if 0
gandol2 3:4bb95aa46ebc 133 for(spiTxCnt = 0 ; spiTxCnt < serialRxLen + 1 ; ++spiTxCnt)
gandol2 3:4bb95aa46ebc 134 {
gandol2 3:4bb95aa46ebc 135 //printf("send Cnt[%d] [0x%02X]\n", spiTxCnt, serialRxBuf[spiTxCnt]);
gandol2 3:4bb95aa46ebc 136 spi_slave.reply(serialRxBuf[spiTxCnt]);
bcup 4:cc97d7a33efc 137 }
bcup 4:cc97d7a33efc 138 #endif
bcup 4:cc97d7a33efc 139 for(spiTxCnt = 0 ; spiTxCnt < 1 ; ++spiTxCnt)
bcup 4:cc97d7a33efc 140 {
bcup 4:cc97d7a33efc 141 //printf("send Cnt[%d] [0x%02X]\n", spiTxCnt, serialRxBuf[spiTxCnt]);
bcup 4:cc97d7a33efc 142
bcup 4:cc97d7a33efc 143 spi_slave.reply(serialRxBuf[spiTxCnt]);
bcup 4:cc97d7a33efc 144 PRINTD("reply=%c\n",serialRxBuf[spiTxCnt]);
bcup 4:cc97d7a33efc 145 }
gandol2 3:4bb95aa46ebc 146
gandol2 3:4bb95aa46ebc 147
gandol2 3:4bb95aa46ebc 148 spiTxReadyFlag = 0;
bcup 4:cc97d7a33efc 149 PRINTD("spiTxReadyFlag =0\n");
gandol2 3:4bb95aa46ebc 150 }
gandol2 3:4bb95aa46ebc 151
bcup 4:cc97d7a33efc 152
gandol2 3:4bb95aa46ebc 153
gandol2 3:4bb95aa46ebc 154
gandol2 3:4bb95aa46ebc 155
gandol2 3:4bb95aa46ebc 156
gandol2 3:4bb95aa46ebc 157
gandol2 3:4bb95aa46ebc 158
gandol2 3:4bb95aa46ebc 159
gandol2 3:4bb95aa46ebc 160 }
gandol2 3:4bb95aa46ebc 161
gandol2 3:4bb95aa46ebc 162
gandol2 3:4bb95aa46ebc 163
gandol2 3:4bb95aa46ebc 164
gandol2 3:4bb95aa46ebc 165
gandol2 3:4bb95aa46ebc 166
gandol2 3:4bb95aa46ebc 167
gandol2 3:4bb95aa46ebc 168
gandol2 3:4bb95aa46ebc 169
gandol2 3:4bb95aa46ebc 170 #if 0 // 161005_BDK_slave backup start
bcup 2:5311ad7c83e6 171 int i;
bcup 2:5311ad7c83e6 172 char valueFromMaster;
bcup 2:5311ad7c83e6 173 char rx_buffer[255]={0};
bcup 2:5311ad7c83e6 174 char rx_cnt = -1;
bcup 2:5311ad7c83e6 175 PRINTD("\n=========SLAVE=========\n");
bcup 2:5311ad7c83e6 176 SPI_SlaveInit();
bcup 2:5311ad7c83e6 177
bcup 0:24e90e3ca3f4 178 while(1)
bcup 0:24e90e3ca3f4 179 {
bcup 2:5311ad7c83e6 180
gandol2 3:4bb95aa46ebc 181 if(spi_slave.receive())
bcup 2:5311ad7c83e6 182 {
bcup 2:5311ad7c83e6 183 PRINTD("----1\n");
bcup 2:5311ad7c83e6 184 if(pc.readable())
bcup 2:5311ad7c83e6 185 {
bcup 2:5311ad7c83e6 186 SPI_SlaveWrite();
bcup 2:5311ad7c83e6 187 }
bcup 2:5311ad7c83e6 188 PRINTD("----2\n");
gandol2 3:4bb95aa46ebc 189 valueFromMaster = spi_slave.read();
bcup 2:5311ad7c83e6 190 PRINTD("----3\n");
bcup 2:5311ad7c83e6 191 //PRINTD("valueFromMaster=");
bcup 2:5311ad7c83e6 192 //PRINTD("[%c]%x\n",valueFromMaster,valueFromMaster);
bcup 2:5311ad7c83e6 193 rx_buffer[++rx_cnt]=valueFromMaster;
bcup 2:5311ad7c83e6 194 if(valueFromMaster==0)
bcup 2:5311ad7c83e6 195 {
bcup 2:5311ad7c83e6 196 PRINTD("rx_string=");
bcup 2:5311ad7c83e6 197 for(i=0;i<rx_cnt;i++)
bcup 2:5311ad7c83e6 198 {
bcup 2:5311ad7c83e6 199 PRINTD("%c",rx_buffer[i]);
bcup 2:5311ad7c83e6 200 }
bcup 2:5311ad7c83e6 201 PRINTD("\n");
bcup 2:5311ad7c83e6 202 for(i=0;i<=rx_cnt;i++)
bcup 2:5311ad7c83e6 203 {
bcup 2:5311ad7c83e6 204 rx_buffer[i]=0;
bcup 2:5311ad7c83e6 205 PRINTD("Init_rx_buf[%d]=%c\n",i,rx_buffer[i]);
bcup 2:5311ad7c83e6 206 }
bcup 2:5311ad7c83e6 207 rx_cnt=-1;
bcup 2:5311ad7c83e6 208
bcup 2:5311ad7c83e6 209 }//valueFromMaster if
bcup 2:5311ad7c83e6 210
gandol2 3:4bb95aa46ebc 211 }// spi_slave.receive() if
bcup 2:5311ad7c83e6 212 /*
bcup 2:5311ad7c83e6 213
bcup 2:5311ad7c83e6 214 */
bcup 2:5311ad7c83e6 215 }//end of while
gandol2 3:4bb95aa46ebc 216 #endif // 161005_BDK_slave backup end
bcup 2:5311ad7c83e6 217 }//end of main