Seeker of Truth , / Mbed 2 deprecated PLYD_CDMS_independent

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Dependencies:   mbed

Fork of PLYD_CDMS_1 by Siva ram

main.cpp@1:72227bdac415, 2015-07-01 (annotated)

Committer:
Piasiv1206
Date:
Wed Jul 01 08:36:55 2015 +0000
Revision:
1:72227bdac415
Parent:
0:58ec354d3b79
Child:
2:623747e75e3c
PYLD_CDMS I2C and SPI complete working... :-)

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Piasiv1206 0:58ec354d3b79 1
Piasiv1206 0:58ec354d3b79 2
Piasiv1206 0:58ec354d3b79 3 // Payload uC (Tiva) -- > SPI master
Piasiv1206 0:58ec354d3b79 4 // CDMS uC (Freescale) --> SPI slave
Piasiv1206 0:58ec354d3b79 5 // packet length = 32*16 bits (32 bins --> each 2 bytes)
Piasiv1206 0:58ec354d3b79 6
Piasiv1206 0:58ec354d3b79 7 #include "mbed.h"
Piasiv1206 0:58ec354d3b79 8
Piasiv1206 0:58ec354d3b79 9 void FUNC_MASTER_WRITE(void);
Piasiv1206 0:58ec354d3b79 10 const int addr = 0x20<<1;
Piasiv1206 1:72227bdac415 11 const int addr1 = (0x20<<1|0);
Piasiv1206 0:58ec354d3b79 12 Timer Siv ;
Piasiv1206 0:58ec354d3b79 13 I2C master (D14,D15);
Piasiv1206 0:58ec354d3b79 14 InterruptIn PYLD_I2C_Int(PTA13);
Piasiv1206 0:58ec354d3b79 15 SPISlave device(PTD6, PTD7, PTD5,PTD4 ); // mosi, miso, sclk, ssel --> using SPI1
Piasiv1206 0:58ec354d3b79 16 InterruptIn PYLD_SPI_Interrupt(PTD2);
Piasiv1206 0:58ec354d3b79 17 int payloadBins = 32;
Piasiv1206 0:58ec354d3b79 18 float Stability_delay = 0.005228 ;// 0.005228
Piasiv1206 0:58ec354d3b79 19
Piasiv1206 0:58ec354d3b79 20 Serial pc(USBTX, USBRX); // tx, rx --> serial feedback for debug
Piasiv1206 0:58ec354d3b79 21
Piasiv1206 0:58ec354d3b79 22 void payloadProcess() {
Piasiv1206 0:58ec354d3b79 23
Piasiv1206 0:58ec354d3b79 24
Piasiv1206 0:58ec354d3b79 25 //wait(Stability_delay); // wait after interrupt for stability
Piasiv1206 0:58ec354d3b79 26 unsigned short scienceRawPacket[payloadBins];
Piasiv1206 0:58ec354d3b79 27
Piasiv1206 0:58ec354d3b79 28 for(int i=0; i<payloadBins;i++){
Piasiv1206 0:58ec354d3b79 29
Piasiv1206 0:58ec354d3b79 30
Piasiv1206 0:58ec354d3b79 31
Piasiv1206 0:58ec354d3b79 32 while(!device.receive()); // blocking statement --> waiting for data from Payload
Piasiv1206 0:58ec354d3b79 33 scienceRawPacket[i] = device.read(); // Read byte from master
Piasiv1206 0:58ec354d3b79 34
Piasiv1206 0:58ec354d3b79 35 }
Piasiv1206 0:58ec354d3b79 36 // serial feedback
Piasiv1206 0:58ec354d3b79 37 pc.printf("Packet recieved\r\n");
Piasiv1206 0:58ec354d3b79 38 for(int i=0;i<payloadBins;i++){
Piasiv1206 0:58ec354d3b79 39 pc.printf("%d\t",scienceRawPacket[i]);
Piasiv1206 0:58ec354d3b79 40 scienceRawPacket[i] = 0;
Piasiv1206 0:58ec354d3b79 41 }
Piasiv1206 0:58ec354d3b79 42 pc.printf("\r\n");
Piasiv1206 0:58ec354d3b79 43
Piasiv1206 0:58ec354d3b79 44 }
Piasiv1206 0:58ec354d3b79 45 int dt3;
Piasiv1206 0:58ec354d3b79 46 bool f = 1;
Piasiv1206 0:58ec354d3b79 47 char rdata[10],rdata2;
Piasiv1206 0:58ec354d3b79 48 void readds()
Piasiv1206 0:58ec354d3b79 49 {
Piasiv1206 0:58ec354d3b79 50
Piasiv1206 0:58ec354d3b79 51 //wait(Stability_delay);
Piasiv1206 0:58ec354d3b79 52
Piasiv1206 0:58ec354d3b79 53 f = master.read(addr,rdata,2);
Piasiv1206 0:58ec354d3b79 54 // dt3 = master.read(1);
Piasiv1206 0:58ec354d3b79 55
Piasiv1206 0:58ec354d3b79 56
Piasiv1206 0:58ec354d3b79 57 }
Piasiv1206 0:58ec354d3b79 58
Piasiv1206 0:58ec354d3b79 59 int loop=1;
Piasiv1206 0:58ec354d3b79 60 char *writedata = new char;
Piasiv1206 1:72227bdac415 61 char data[100]= "kitten";
Piasiv1206 0:58ec354d3b79 62
Piasiv1206 0:58ec354d3b79 63 void FUNC_MASTER_WRITE(void)
Piasiv1206 1:72227bdac415 64 { int data1 = pc.getc();
Piasiv1206 0:58ec354d3b79 65 loop=1;
Piasiv1206 0:58ec354d3b79 66
Piasiv1206 0:58ec354d3b79 67
Piasiv1206 0:58ec354d3b79 68 master.frequency(100000);
Piasiv1206 1:72227bdac415 69 *writedata = data1;
Piasiv1206 0:58ec354d3b79 70 while(loop)
Piasiv1206 0:58ec354d3b79 71 {
Piasiv1206 1:72227bdac415 72 // bool check = (bool)master.write(addr,data,8);
Piasiv1206 1:72227bdac415 73 bool check = (bool)master.write(addr,data,13);
Piasiv1206 1:72227bdac415 74 /*
Piasiv1206 1:72227bdac415 75 master.start();
Piasiv1206 1:72227bdac415 76 bool check1 = master.write(addr1);
Piasiv1206 1:72227bdac415 77 bool check2 = master.write(83);
Piasiv1206 1:72227bdac415 78 master.write(97);
Piasiv1206 1:72227bdac415 79 //wait(1);
Piasiv1206 1:72227bdac415 80 master.write(107);
Piasiv1206 1:72227bdac415 81 master.write(116);
Piasiv1206 1:72227bdac415 82 master.write(104);
Piasiv1206 1:72227bdac415 83 master.write(105);
Piasiv1206 1:72227bdac415 84 master.write(32);
Piasiv1206 1:72227bdac415 85 master.write(80);
Piasiv1206 1:72227bdac415 86 master.write(114);
Piasiv1206 1:72227bdac415 87 master.write(105);
Piasiv1206 1:72227bdac415 88 master.write(121);
Piasiv1206 1:72227bdac415 89 master.write(97);
Piasiv1206 1:72227bdac415 90
Piasiv1206 1:72227bdac415 91 master.stop();
Piasiv1206 1:72227bdac415 92 */
Piasiv1206 1:72227bdac415 93
Piasiv1206 0:58ec354d3b79 94
Piasiv1206 0:58ec354d3b79 95 loop = 0;
Piasiv1206 0:58ec354d3b79 96 }
Piasiv1206 0:58ec354d3b79 97 }
Piasiv1206 0:58ec354d3b79 98 int main() {
Piasiv1206 0:58ec354d3b79 99 int dt1 = 0,dt2 = 0;
Piasiv1206 0:58ec354d3b79 100 device.format(16,0); // SPI format --> 16 bits, mode = 0
Piasiv1206 0:58ec354d3b79 101 device.frequency(1000000);
Piasiv1206 1:72227bdac415 102 master.frequency(400000);
Piasiv1206 0:58ec354d3b79 103
Piasiv1206 0:58ec354d3b79 104 pc.printf("Example code demonstarting Payload - CDMS SPI & I2C communication!\r\n");
Piasiv1206 0:58ec354d3b79 105 PYLD_SPI_Interrupt.rise(&payloadProcess);
Piasiv1206 0:58ec354d3b79 106 PYLD_I2C_Int.rise(&readds);
Piasiv1206 0:58ec354d3b79 107
Piasiv1206 0:58ec354d3b79 108 while(1)
Piasiv1206 0:58ec354d3b79 109 {
Piasiv1206 0:58ec354d3b79 110 FUNC_MASTER_WRITE();
Piasiv1206 0:58ec354d3b79 111 wait(1);
Piasiv1206 0:58ec354d3b79 112 dt1 = rdata[0] ;
Piasiv1206 0:58ec354d3b79 113 dt2 = rdata[1] ;
Piasiv1206 0:58ec354d3b79 114 //pc.printf("Temperature %d \n\r",rdata);
Piasiv1206 0:58ec354d3b79 115 pc.printf("Temperature %d \n\r",dt1);
Piasiv1206 0:58ec354d3b79 116 pc.printf("Temperature2 %d \n\r",dt2);
Piasiv1206 0:58ec354d3b79 117 //pc.printf("Temperature3 %d \n\r",dt3);
Piasiv1206 0:58ec354d3b79 118
Piasiv1206 0:58ec354d3b79 119
Piasiv1206 0:58ec354d3b79 120 }
Piasiv1206 0:58ec354d3b79 121 }