Sonder Design Team / Mbed 2 deprecated QSB_SPI_MEM

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Dependencies:   USBDevice mbed

spimem.cpp@0:67a2a0e8c475, 2016-02-25 (annotated)

Committer:
ThomasSonderDesign
Date:
Thu Feb 25 00:51:18 2016 +0000
Revision:
0:67a2a0e8c475
Test od programing flash over SPI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ThomasSonderDesign 0:67a2a0e8c475 1 /*
ThomasSonderDesign 0:67a2a0e8c475 2 Test Writes to spi flash, all works
ThomasSonderDesign 0:67a2a0e8c475 3
ThomasSonderDesign 0:67a2a0e8c475 4 */
ThomasSonderDesign 0:67a2a0e8c475 5 #include "mbed.h"
ThomasSonderDesign 0:67a2a0e8c475 6 #include "USBSerial.h"
ThomasSonderDesign 0:67a2a0e8c475 7
ThomasSonderDesign 0:67a2a0e8c475 8
ThomasSonderDesign 0:67a2a0e8c475 9 //DigitalOut myled(LED1);
ThomasSonderDesign 0:67a2a0e8c475 10 USBSerial pc;
ThomasSonderDesign 0:67a2a0e8c475 11 //Timer t;
ThomasSonderDesign 0:67a2a0e8c475 12
ThomasSonderDesign 0:67a2a0e8c475 13 DigitalOut cs(P0_22);
ThomasSonderDesign 0:67a2a0e8c475 14 DigitalIn button(P1_15);
ThomasSonderDesign 0:67a2a0e8c475 15 int dummy = 0;
ThomasSonderDesign 0:67a2a0e8c475 16 //Serial pc(USBTX, USBRX); // tx, rx
ThomasSonderDesign 0:67a2a0e8c475 17
ThomasSonderDesign 0:67a2a0e8c475 18
ThomasSonderDesign 0:67a2a0e8c475 19
ThomasSonderDesign 0:67a2a0e8c475 20 int main()
ThomasSonderDesign 0:67a2a0e8c475 21 {
ThomasSonderDesign 0:67a2a0e8c475 22 while(1) {
ThomasSonderDesign 0:67a2a0e8c475 23 char c = 0;
ThomasSonderDesign 0:67a2a0e8c475 24 while(c==0) {
ThomasSonderDesign 0:67a2a0e8c475 25 c = pc.getc();
ThomasSonderDesign 0:67a2a0e8c475 26 pc.printf("Waiting");
ThomasSonderDesign 0:67a2a0e8c475 27 wait(1);
ThomasSonderDesign 0:67a2a0e8c475 28
ThomasSonderDesign 0:67a2a0e8c475 29 }
ThomasSonderDesign 0:67a2a0e8c475 30
ThomasSonderDesign 0:67a2a0e8c475 31 pc.printf("\n\rtime = ");
ThomasSonderDesign 0:67a2a0e8c475 32 for(int i = 0; i<5; i++) {
ThomasSonderDesign 0:67a2a0e8c475 33 pc.printf("%.d", 5-i);
ThomasSonderDesign 0:67a2a0e8c475 34 wait(1);
ThomasSonderDesign 0:67a2a0e8c475 35 pc.putc(8);
ThomasSonderDesign 0:67a2a0e8c475 36 }
ThomasSonderDesign 0:67a2a0e8c475 37 SPI my_spi(P0_9,P0_8,P0_10); // mosi, miso, sclk
ThomasSonderDesign 0:67a2a0e8c475 38 // Chip must be deselected
ThomasSonderDesign 0:67a2a0e8c475 39 cs = 1;
ThomasSonderDesign 0:67a2a0e8c475 40 my_spi.format(8,3);// Setup the spi for 8 bit data, low steady state clock,
ThomasSonderDesign 0:67a2a0e8c475 41 my_spi.frequency(10000);// second edge capture, with a 1MHz clock rate
ThomasSonderDesign 0:67a2a0e8c475 42 /*
ThomasSonderDesign 0:67a2a0e8c475 43 cs = 0;
ThomasSonderDesign 0:67a2a0e8c475 44 int v1 = my_spi.write(0x05); // Send Read status reg command
ThomasSonderDesign 0:67a2a0e8c475 45 int v2 = my_spi.write(0x1);
ThomasSonderDesign 0:67a2a0e8c475 46 int v3 = my_spi.write(0x1);
ThomasSonderDesign 0:67a2a0e8c475 47 pc.printf("Staus reg = %.x %.x %.x\n\r",v1, v2, v3);
ThomasSonderDesign 0:67a2a0e8c475 48 cs = 1;
ThomasSonderDesign 0:67a2a0e8c475 49 wait_ms(2);
ThomasSonderDesign 0:67a2a0e8c475 50
ThomasSonderDesign 0:67a2a0e8c475 51 cs = 0;
ThomasSonderDesign 0:67a2a0e8c475 52 v1 = my_spi.write(0x9f); // Send Read status reg command
ThomasSonderDesign 0:67a2a0e8c475 53 v2 = my_spi.write(0x1);
ThomasSonderDesign 0:67a2a0e8c475 54 v3 = my_spi.write(0x1);
ThomasSonderDesign 0:67a2a0e8c475 55 v1 = my_spi.write(0x1);
ThomasSonderDesign 0:67a2a0e8c475 56 pc.printf("RID = %.x %.x %.x \n\r",v1, v2, v3);
ThomasSonderDesign 0:67a2a0e8c475 57 cs = 1;
ThomasSonderDesign 0:67a2a0e8c475 58 */
ThomasSonderDesign 0:67a2a0e8c475 59
ThomasSonderDesign 0:67a2a0e8c475 60
ThomasSonderDesign 0:67a2a0e8c475 61
ThomasSonderDesign 0:67a2a0e8c475 62 cs=1;
ThomasSonderDesign 0:67a2a0e8c475 63
ThomasSonderDesign 0:67a2a0e8c475 64 // while (1){//(button ==1) {
ThomasSonderDesign 0:67a2a0e8c475 65 pc.printf("\n\rStart___________________________________\n\r");
ThomasSonderDesign 0:67a2a0e8c475 66 //t.start();
ThomasSonderDesign 0:67a2a0e8c475 67
ThomasSonderDesign 0:67a2a0e8c475 68 cs = 0; // Bring chip select low to write to FeRAM
ThomasSonderDesign 0:67a2a0e8c475 69 my_spi.write(0x06); // Send WREN command
ThomasSonderDesign 0:67a2a0e8c475 70 cs = 1; // Bring chip select high to stop writing
ThomasSonderDesign 0:67a2a0e8c475 71
ThomasSonderDesign 0:67a2a0e8c475 72 // Thought I would wait a bit to get a cleaner scope trace
ThomasSonderDesign 0:67a2a0e8c475 73 wait_us(10);
ThomasSonderDesign 0:67a2a0e8c475 74
ThomasSonderDesign 0:67a2a0e8c475 75 /**** START OF WRITE SEQUENCE ****/
ThomasSonderDesign 0:67a2a0e8c475 76 for(int i = 0; i>256; i++) {
ThomasSonderDesign 0:67a2a0e8c475 77 cs = 0; // Bring chip select low to write to FeRAM
ThomasSonderDesign 0:67a2a0e8c475 78 my_spi.write(0x02); // Send write command
ThomasSonderDesign 0:67a2a0e8c475 79 my_spi.write(0x00); // Send top address byte to wrtie to
ThomasSonderDesign 0:67a2a0e8c475 80 my_spi.write(0x00); // Send Middle address byte to wrtie to
ThomasSonderDesign 0:67a2a0e8c475 81 my_spi.write(i); // Send Bottom address byte to wrtie to
ThomasSonderDesign 0:67a2a0e8c475 82 // Send data to be write
ThomasSonderDesign 0:67a2a0e8c475 83 my_spi.write(i+1);
ThomasSonderDesign 0:67a2a0e8c475 84 cs = 1;
ThomasSonderDesign 0:67a2a0e8c475 85 wait_us(5);
ThomasSonderDesign 0:67a2a0e8c475 86 }
ThomasSonderDesign 0:67a2a0e8c475 87 //pc.printf("last i %.d", i);
ThomasSonderDesign 0:67a2a0e8c475 88
ThomasSonderDesign 0:67a2a0e8c475 89
ThomasSonderDesign 0:67a2a0e8c475 90 /**** END OF WRITE SEQUENCE ****/
ThomasSonderDesign 0:67a2a0e8c475 91
ThomasSonderDesign 0:67a2a0e8c475 92 // Thought I would wait a bit again
ThomasSonderDesign 0:67a2a0e8c475 93 wait_us(10);
ThomasSonderDesign 0:67a2a0e8c475 94
ThomasSonderDesign 0:67a2a0e8c475 95 /**** START OF READ SEQUENCE ****/
ThomasSonderDesign 0:67a2a0e8c475 96 int my_val[1200]; // Variable to store the read data
ThomasSonderDesign 0:67a2a0e8c475 97 cs = 0;
ThomasSonderDesign 0:67a2a0e8c475 98 my_spi.write(0x03); // Send read command
ThomasSonderDesign 0:67a2a0e8c475 99 my_spi.write(0x00); // Send top address byte to wrtie to
ThomasSonderDesign 0:67a2a0e8c475 100 my_spi.write(0x00); // Send Middle address byte to wrtie to
ThomasSonderDesign 0:67a2a0e8c475 101 my_spi.write(0x00); // Send Bottom address byte to wrtie to
ThomasSonderDesign 0:67a2a0e8c475 102 //pc.printf("\n\r %.d", my_spi.write(dummy));
ThomasSonderDesign 0:67a2a0e8c475 103
ThomasSonderDesign 0:67a2a0e8c475 104 for(int i=0; i<256; i++) {
ThomasSonderDesign 0:67a2a0e8c475 105 wait_us(10);
ThomasSonderDesign 0:67a2a0e8c475 106 my_spi.write(0);
ThomasSonderDesign 0:67a2a0e8c475 107 }
ThomasSonderDesign 0:67a2a0e8c475 108 cs=1;
ThomasSonderDesign 0:67a2a0e8c475 109 //t.stop();
ThomasSonderDesign 0:67a2a0e8c475 110 //float time = t.read();
ThomasSonderDesign 0:67a2a0e8c475 111 //pc.printf("The time taken was %f seconds\n", time);
ThomasSonderDesign 0:67a2a0e8c475 112 /*
ThomasSonderDesign 0:67a2a0e8c475 113 int counter = 0;
ThomasSonderDesign 0:67a2a0e8c475 114 for(int i=0; i<1200; i++) {
ThomasSonderDesign 0:67a2a0e8c475 115 wait_us(5);
ThomasSonderDesign 0:67a2a0e8c475 116 pc.printf("%x",my_val[i]);
ThomasSonderDesign 0:67a2a0e8c475 117 /*
ThomasSonderDesign 0:67a2a0e8c475 118 if(my_val[i]>00){
ThomasSonderDesign 0:67a2a0e8c475 119 pc.printf("#");
ThomasSonderDesign 0:67a2a0e8c475 120 counter++;
ThomasSonderDesign 0:67a2a0e8c475 121 }
ThomasSonderDesign 0:67a2a0e8c475 122 else{
ThomasSonderDesign 0:67a2a0e8c475 123 pc.printf(" ");
ThomasSonderDesign 0:67a2a0e8c475 124 counter = 0;
ThomasSonderDesign 0:67a2a0e8c475 125 }
ThomasSonderDesign 0:67a2a0e8c475 126
ThomasSonderDesign 0:67a2a0e8c475 127 if ((i%60)==0) {
ThomasSonderDesign 0:67a2a0e8c475 128 pc.printf("\n ");
ThomasSonderDesign 0:67a2a0e8c475 129 }
ThomasSonderDesign 0:67a2a0e8c475 130
ThomasSonderDesign 0:67a2a0e8c475 131 }
ThomasSonderDesign 0:67a2a0e8c475 132
ThomasSonderDesign 0:67a2a0e8c475 133 int val = my_spi.write(0);
ThomasSonderDesign 0:67a2a0e8c475 134 pc.printf("\n\rDone %.x",val);
ThomasSonderDesign 0:67a2a0e8c475 135 cs=1;
ThomasSonderDesign 0:67a2a0e8c475 136 //}
ThomasSonderDesign 0:67a2a0e8c475 137 }
ThomasSonderDesign 0:67a2a0e8c475 138 */
ThomasSonderDesign 0:67a2a0e8c475 139 }
ThomasSonderDesign 0:67a2a0e8c475 140 }