LabsDigital / Mbed 2 deprecated Lab5_MCP4922

Lab5

Dependencies:   mbed

main.cpp@0:59a8574b663a, 2017-11-21 (annotated)

Committer:
Supermil
Date:
Tue Nov 21 16:17:32 2017 +0000
Revision:
0:59a8574b663a
lab6 MCP4922;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Supermil 0:59a8574b663a 1
Supermil 0:59a8574b663a 2 #include "mbed.h"
Supermil 0:59a8574b663a 3 #include "MCP4922.h"
Supermil 0:59a8574b663a 4
Supermil 0:59a8574b663a 5 MCP4922 MCP(SPI_MOSI, SPI_SCK,PB_6); // MOSI, SCLK, CS
Supermil 0:59a8574b663a 6
Supermil 0:59a8574b663a 7
Supermil 0:59a8574b663a 8 /**** Main Function ***/
Supermil 0:59a8574b663a 9 int main(void)
Supermil 0:59a8574b663a 10 {
Supermil 0:59a8574b663a 11 MCP.frequency(3125000);
Supermil 0:59a8574b663a 12
Supermil 0:59a8574b663a 13 uint16_t i=0;
Supermil 0:59a8574b663a 14 int state=0;
Supermil 0:59a8574b663a 15 while(1) {
Supermil 0:59a8574b663a 16 if(i < 0x07FF) {
Supermil 0:59a8574b663a 17 i++;
Supermil 0:59a8574b663a 18 }
Supermil 0:59a8574b663a 19 else {
Supermil 0:59a8574b663a 20 i=0;
Supermil 0:59a8574b663a 21 if (state == 0 ){
Supermil 0:59a8574b663a 22 state = 1;
Supermil 0:59a8574b663a 23 }
Supermil 0:59a8574b663a 24 else if(state == 1) {
Supermil 0:59a8574b663a 25 state = 2;
Supermil 0:59a8574b663a 26 }
Supermil 0:59a8574b663a 27 else if(state == 2){
Supermil 0:59a8574b663a 28 state = 3;
Supermil 0:59a8574b663a 29 }
Supermil 0:59a8574b663a 30 else if(state == 3){
Supermil 0:59a8574b663a 31 state = 0;
Supermil 0:59a8574b663a 32 }
Supermil 0:59a8574b663a 33 }
Supermil 0:59a8574b663a 34
Supermil 0:59a8574b663a 35 if(state ==0) {
Supermil 0:59a8574b663a 36 MCP.writeA(i);
Supermil 0:59a8574b663a 37 }
Supermil 0:59a8574b663a 38 else if (state == 1){
Supermil 0:59a8574b663a 39 MCP.writeA( ((~i))&0x07FF);
Supermil 0:59a8574b663a 40 }
Supermil 0:59a8574b663a 41 else if (state == 2){
Supermil 0:59a8574b663a 42 MCP.writeA( ((~i))&0x0FFF);
Supermil 0:59a8574b663a 43 }
Supermil 0:59a8574b663a 44 else if (state == 3){
Supermil 0:59a8574b663a 45 MCP.writeA(i+0x07FF);
Supermil 0:59a8574b663a 46 }
Supermil 0:59a8574b663a 47 wait_us(2);
Supermil 0:59a8574b663a 48 }
Supermil 0:59a8574b663a 49 }