CUBEBITE / Mbed 2 deprecated Nucleo_blink_led

SPImaster_F042K6

Dependencies:   mbed

Fork of SPImaster_F042K6 by Dongki Bae

main.cpp@0:24e90e3ca3f4, 2016-10-05 (annotated)

Committer:
bcup
Date:
Wed Oct 05 07:02:51 2016 +0000
Revision:
0:24e90e3ca3f4
Child:
1:3a338e553a54
161005_K303K8

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
bcup 0:24e90e3ca3f4 9 SPISlave spislave(PA_7, PA_6, PA_5, PA_4); // MOSI, MISO, SCLK(CLK), SSEL(CS)=NC
bcup 0:24e90e3ca3f4 10 Serial pc(USBTX, USBRX);
bcup 0:24e90e3ca3f4 11
bcup 0:24e90e3ca3f4 12 void SPI_SlaveInit()
bcup 0:24e90e3ca3f4 13 {
bcup 0:24e90e3ca3f4 14 PRINTD("Set the SPI SLAVE format\n");
bcup 0:24e90e3ca3f4 15 spislave.format(8,0); // setup 8bit 0 mode
bcup 0:24e90e3ca3f4 16 PRINTD("Set the SPI SLAVE frequency\n");
bcup 0:24e90e3ca3f4 17 spislave.frequency(); // default 1MHz
bcup 0:24e90e3ca3f4 18 }
bcup 0:24e90e3ca3f4 19
bcup 0:24e90e3ca3f4 20 void SPI_SlaveWrite()
bcup 0:24e90e3ca3f4 21 {
bcup 0:24e90e3ca3f4 22 char tx_buffer[255]={0};
bcup 0:24e90e3ca3f4 23 char reply;
bcup 0:24e90e3ca3f4 24 char i;
bcup 0:24e90e3ca3f4 25 char temp;
bcup 0:24e90e3ca3f4 26 char tx_cnt = 0;
bcup 0:24e90e3ca3f4 27 int value;
bcup 0:24e90e3ca3f4 28 PRINTD("Input Strging=");
bcup 0:24e90e3ca3f4 29 while(1)
bcup 0:24e90e3ca3f4 30 {
bcup 0:24e90e3ca3f4 31
bcup 0:24e90e3ca3f4 32 temp=getchar();
bcup 0:24e90e3ca3f4 33 tx_buffer[tx_cnt++]=temp;
bcup 0:24e90e3ca3f4 34 if(temp==0x0d)
bcup 0:24e90e3ca3f4 35 {
bcup 0:24e90e3ca3f4 36 tx_buffer[tx_cnt]=0;
bcup 0:24e90e3ca3f4 37 PRINTD("\nData send Finish...\n");
bcup 0:24e90e3ca3f4 38 for(i=0;i<=tx_cnt;++i)
bcup 0:24e90e3ca3f4 39 {
bcup 0:24e90e3ca3f4 40 PRINTD("%c[%02x]",tx_buffer[i],tx_buffer[i]);
bcup 0:24e90e3ca3f4 41 }
bcup 0:24e90e3ca3f4 42 PRINTD("\n\n");
bcup 0:24e90e3ca3f4 43 for(i=0;i<=tx_cnt;++i)
bcup 0:24e90e3ca3f4 44 {
bcup 0:24e90e3ca3f4 45 value=tx_buffer[i];
bcup 0:24e90e3ca3f4 46 PRINTD("write[%d]=%c[%02x]\n",i,value,value);
bcup 0:24e90e3ca3f4 47 spislave.reply(value);
bcup 0:24e90e3ca3f4 48 }
bcup 0:24e90e3ca3f4 49 for(i=0;i<tx_cnt;++i)
bcup 0:24e90e3ca3f4 50 {
bcup 0:24e90e3ca3f4 51 tx_buffer[i]=0;
bcup 0:24e90e3ca3f4 52 PRINTD("init_tx_buf[%d]=%c\n",i,tx_buffer[i]);
bcup 0:24e90e3ca3f4 53 }
bcup 0:24e90e3ca3f4 54 tx_cnt=0;
bcup 0:24e90e3ca3f4 55 PRINTD("break\n");
bcup 0:24e90e3ca3f4 56 break;
bcup 0:24e90e3ca3f4 57 }
bcup 0:24e90e3ca3f4 58 else
bcup 0:24e90e3ca3f4 59 {
bcup 0:24e90e3ca3f4 60 PRINTD("%c[%02x]",tx_buffer[tx_cnt],tx_buffer[tx_cnt]);
bcup 0:24e90e3ca3f4 61 }
bcup 0:24e90e3ca3f4 62 }
bcup 0:24e90e3ca3f4 63 return;
bcup 0:24e90e3ca3f4 64 }
bcup 0:24e90e3ca3f4 65
bcup 0:24e90e3ca3f4 66 int main()
bcup 0:24e90e3ca3f4 67 {
bcup 0:24e90e3ca3f4 68 int i;
bcup 0:24e90e3ca3f4 69 char valueFromMaster;
bcup 0:24e90e3ca3f4 70 char rx_buffer[255]={0};
bcup 0:24e90e3ca3f4 71 char rx_cnt = -1;
bcup 0:24e90e3ca3f4 72 PRINTD("\n=========SLAVE=========\n");
bcup 0:24e90e3ca3f4 73 SPI_SlaveInit();
bcup 0:24e90e3ca3f4 74
bcup 0:24e90e3ca3f4 75 while(1)
bcup 0:24e90e3ca3f4 76 {
bcup 0:24e90e3ca3f4 77
bcup 0:24e90e3ca3f4 78 if(spislave.receive())
bcup 0:24e90e3ca3f4 79 {
bcup 0:24e90e3ca3f4 80 PRINTD("----1\n");
bcup 0:24e90e3ca3f4 81 if(pc.readable())
bcup 0:24e90e3ca3f4 82 {
bcup 0:24e90e3ca3f4 83 SPI_SlaveWrite();
bcup 0:24e90e3ca3f4 84 }
bcup 0:24e90e3ca3f4 85 PRINTD("----2\n");
bcup 0:24e90e3ca3f4 86 valueFromMaster = spislave.read();
bcup 0:24e90e3ca3f4 87 PRINTD("----3\n");
bcup 0:24e90e3ca3f4 88 //PRINTD("valueFromMaster=");
bcup 0:24e90e3ca3f4 89 //PRINTD("[%c]%x\n",valueFromMaster,valueFromMaster);
bcup 0:24e90e3ca3f4 90 rx_buffer[++rx_cnt]=valueFromMaster;
bcup 0:24e90e3ca3f4 91 if(valueFromMaster==0)
bcup 0:24e90e3ca3f4 92 {
bcup 0:24e90e3ca3f4 93 PRINTD("rx_string=");
bcup 0:24e90e3ca3f4 94 for(i=0;i<rx_cnt;i++)
bcup 0:24e90e3ca3f4 95 {
bcup 0:24e90e3ca3f4 96 PRINTD("%c",rx_buffer[i]);
bcup 0:24e90e3ca3f4 97 }
bcup 0:24e90e3ca3f4 98 PRINTD("\n");
bcup 0:24e90e3ca3f4 99 for(i=0;i<=rx_cnt;i++)
bcup 0:24e90e3ca3f4 100 {
bcup 0:24e90e3ca3f4 101 rx_buffer[i]=0;
bcup 0:24e90e3ca3f4 102 PRINTD("Init_rx_buf[%d]=%c\n",i,rx_buffer[i]);
bcup 0:24e90e3ca3f4 103 }
bcup 0:24e90e3ca3f4 104 rx_cnt=-1;
bcup 0:24e90e3ca3f4 105
bcup 0:24e90e3ca3f4 106 }//valueFromMaster if
bcup 0:24e90e3ca3f4 107
bcup 0:24e90e3ca3f4 108 }// spislave.receive() if
bcup 0:24e90e3ca3f4 109 /*
bcup 0:24e90e3ca3f4 110
bcup 0:24e90e3ca3f4 111 */
bcup 0:24e90e3ca3f4 112 }//end of while
bcup 0:24e90e3ca3f4 113 }//end of main