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Programming the Mocrocontroller

The Microcontroller used in this project is the Cypress PSoC CY8C24123A. To program this part, you will need the development kit from Cypress. It is available from Mouser for about $30. It comes with a programming adapter and the development software, PSoC Designer.

In PSoC Designer create a new project for the CY8C24123A and set the language to C. Then set the global parameters and the device parameters as below:

This sets all of the configuration for the PSoC Chip. In the main.c file, paste the following code:

//----------------------------------------------------------------------------
// C main line
//----------------------------------------------------------------------------

#include <m8c.h>        // part specific constants and macros
#include "PSoCAPI.h"    // PSoC API definitions for all User Modules

void main(void)
{

int runmode;
	int softdelay;
	int debounce;
	
    PWR_Start();
    SOFT_Start();
	PWR_Off();
	SOFT_Off();

runmode = 0;  // 0= everything off, 1= charging, 2 = normal run mode

while(1) {
	
		//read the P1 register to sense the switch state.
		if ((PRT1DR & 0x01)==0) {
			
			//if the switch is on (port = 0) then debounce
			if(debounce < 25) {  //initial debounce just increment
				debounce++;
			}
			if (debounce == 25) { //magic value, take action
				debounce++;  //only do this loop once per switch action
				if (runmode == 1) { //if we are currently charging and we hit the switch again, turn everything off
					PWR_Off(); //turn off main power relay
					SOFT_Off(); //turn off soft charge relay
					softdelay = 0; //reset charging timer
					runmode = 0; //reset runmode to off
				} else {
					if (runmode == 0){  //if power is currently off
						SOFT_On(); // set softstart relay to soft mode
						softdelay = 0;  //start timer for soft charging
						PWR_On();  //turn on the main power relay
						runmode = 1; //charging via softstart
					} else {
						//runmode = 2 -> up and running normally, power on, softstart off
						PWR_Off(); //turn off main power relay
						SOFT_Off(); //turn off soft charge relay (should be off already anyway)
						softdelay = 0; //reset charging timer (should be reset anyway)
						runmode = 0; //reset runmode to off
					}
				}
			}
		
		} else {
			//if the switch is off (port>0) then stop debounce
			debounce = 0;
		}

//if we are charging then count the delay
		if (runmode == 1){
			softdelay++;
			
			if(softdelay>=500) { //we have charged enough, time to switch to normal operation
				SOFT_Off(); //switch the softstart relay back to full power mode (OFF)
				runmode = 2;  //indicate normal running mode
				softdelay = 0; //reset softstart delay
			}
		}
	
	
	}
	
	
}

Save and compile the project then program the chip.

If you would like to purchase a pre-programmed microcontroller, or a fully assembled and tested board, please visit the Store.