MAX6675_Demo.cpp

Read the current temperature and print it to the terminal

cmake_minimum_required(VERSION 3.12)
find_package(PropWare REQUIRED)
 
project(MAX6675_Demo)
 
create_simple_executable(${PROJECT_NAME} MAX6675_Demo.cpp)

 
#include <PropWare/PropWare.h>
#include <PropWare/sensor/temperature/max6675.h>
 
using PropWare::Port;
using PropWare::SPI;
using PropWare::MAX6675;
 
static const Port::Mask MOSI = Port::Mask::P0;
static const Port::Mask MISO = Port::Mask::P1;
static const Port::Mask SCLK = Port::Mask::P2;
static const Port::Mask CS   = Port::Mask::P5;
 
int main() {
    SPI     spi = SPI::get_instance();
    MAX6675 thermo(spi, MOSI, MISO, SCLK, CS);
 
    // Though this functional call is not necessary (default value is 0), I
    // want to bring attention to this function. It will determine whether the
    // thermo.read* functions will always explicitly set the SPI modes before
    // each call, or assume that the SPI driver is still running in the proper
    // configuration
    thermo.always_set_spi_mode(1);
 
    pwOut << "Welcome to the MAX6675 demo!\n";
 
    uint16_t data;
    while (1) {
        data = thermo.read();
        pwOut.printf("Temp: %u.%uC\n", data >> 2, (data & 0x3) * 25);
        waitcnt(CLKFREQ / 2 + CNT);
    }
}