File content as of revision 0:1ebe7d222470:

// ----------------------------------------------------------------------
// LaserMon-Main.cpp
//
// Fredric L. Rice, June 2019
//
// ----------------------------------------------------------------------

#include "mbed.h"                   // The mbed operating system
#include "LCD_DISCO_F429ZI.h"       // For controlling the LCD
#include "TS_DISCO_F429ZI.h"        // For controlling the touch screen
#include "LaserMon-TestOutput.h"    // For generating test output signal
#include "LaserMon-ScanInput.h"     // For monitoring laser power pin
#include "LaserMon-Main.h"          // Always include ourself

// ----------------------------------------------------------------------
// Local data storage
//
// ----------------------------------------------------------------------

    const char * pch_firstMessage  = "Test signal on PA_5";
    const char * pch_secondMessage = "Laser Scan on PC_1";

// ----------------------------------------------------------------------
// Define global data storage which we will export
//
// ----------------------------------------------------------------------

    // We will be using the LCD so instantiate an object locally
    LCD_DISCO_F429ZI st_lcd;

    // We will be using the touch screen so instantiate an object
    TS_DISCO_F429ZI st_touchScreen;
    
// ----------------------------------------------------------------------
// MainInit()
//
// ----------------------------------------------------------------------
static void MainInit(void)
{
    // Bring the LCD up 
    st_lcd.Clear(LCD_COLOR_WHITE);
    
    // Set the default text color
    st_lcd.SetTextColor(LCD_COLOR_BLUE);
    
    // Set the background color
    st_lcd.SetBackColor(LCD_COLOR_WHITE);        

    // Set the default font size
    BSP_LCD_SetFont(&Font16);
}

// ----------------------------------------------------------------------
// main()
//
//
// ----------------------------------------------------------------------
int main(void)
{
    // Perform local module initialization, if any
    MainInit();
    
    // Start generating the putput test signal
    TestOutputInit();
    
    // Start scanning the laser drive power
    ScanInputInit();
    
    // Display information about what signal pigs have what
    st_lcd.DisplayStringAt(1, LINE(1), (uint8_t *)pch_firstMessage, LEFT_MODE);
    st_lcd.DisplayStringAt(1, LINE(2), (uint8_t *)pch_secondMessage, LEFT_MODE);
    
    // Go in to a forever loop for the main thread which does nothing
    while(true)
    {
        // Wait for 1 second and then wait again
        wait(1.0);
    }
}

// ----------------------------------------------------------------------
// accurate_wait_ms()
//
// Because the wait() and wait_ms() library calls for the board we are
// using is not accurate, this function is provided which uses
// microseconds to scale the requested wait offered in milliseconds.
//
// ----------------------------------------------------------------------
void accurate_wait_ms(uint16_t u16_thisManyMilliseconds)
{
    // There are one million microseconds in a second
    // There are one thousand milliseconds in a second
    // Compute how many microseconds would normally be needed to
    // perform the reqested number of milliseconds to wait if the
    // system clock / crystal were accurate
    uint64_t u64_thisManyMicroseconds = (u16_thisManyMilliseconds * 100000);
    
    // Since the clock appears to run much faster than expected by 
    // the mbed library, divide the number of microseconds by a
    // hard-coded scaling factor to attempt to yield a number that
    // is closer to what we actually get
    u64_thisManyMicroseconds /= 300ul;
    
    // Now wait that many microseconds asking the library to do it
    wait_us((int)u64_thisManyMicroseconds);
}

// End of file