Joe Danlloh / Mbed 2 deprecated digitalPot

ddd

Dependencies:   lwip mbed

Fork of EthernetTester by Michael Wei

main.cpp

Committer:
idijoeteque
Date:
2017-08-03
Revision:
1:818e764b86f2
Parent:
0:83f7908c81b1

File content as of revision 1:818e764b86f2:

#include "mbed.h"



void setup() {  
//setup SPI, 8 bit data, high steady state clock,
//second edge capture, 1MHz clock rate
spi.format(8,3);
spi.frequency(1000000);
}

void loop() {
    for(int level=0; level<255; level++) {
        digitalPotWrite(level);
        wait(0.1);
    }
    //wait a second at the top
    wait(1);
    for(int level = 0; level < 255; level++) {
        digitalPotWrite(255-level);
        wait(0.1);
    }
    
void digitalPotWrite(int addresss, int value) {
    //take the SS pin low to select the chip
    cs = 0;
    //send in the address and value via SPI
    spi.write(address);
    spi.write(value);
    //take the SS pin high to deselect the chip
    cs = 1;
}