gistfile1.txt

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/*
 * helloworld.c: simple test application
 *
 * This application configures UART 16550 to baud rate 9600.
 * PS7 UART (Zynq) is not initialized by this application, since
 * bootrom/bsp configures it to baud rate 115200
 *
 * ------------------------------------------------
 * | UART TYPE   BAUD RATE                        |
 * ------------------------------------------------
 *   uartns550   9600
 *   uartlite    Configurable only in HW design //115200
 *   ps7_uart    115200 (configured by bootrom/bsp)
 */


/***************************** Include Files *********************************/
#include <stdio.h>
#include "platform.h"
#include "xil_printf.h"
#include "PmodHYGRO.h"
#include "PmodALS.h"
#include "xgpio.h"
#include "sleep.h"
#include "xil_cache.h"
#include "xil_types.h"
#include "xparameters.h"

/************************** Constant Definitions *****************************/
#define LEDONE 0x01


/************************** Function Prototypes ******************************/
void hardwareSetup();
void cleanup_caches();
int pollALS(int lightVal);


/************************** Variable Definitions *****************************/

/*
 * The following are declared globally so they are zeroed and so they are
 * easily accessible from a debugger
 */
PmodALS ALS;
PmodHYGRO hygro;
XGpio Gpio;


int main()
{

    init_platform();
    hardwareSetup();

    xil_printf("Plant Monitoring System\n\r");
    // HYGRO
    float temp_degc, hum_perrh, temp_degf;
    // ALS
    int printLight = 0;


    while(1)
    {
		temp_degc = HYGRO_getTemperature(&hygro);
	    temp_degf = HYGRO_tempC2F(temp_degc);
	    hum_perrh = HYGRO_getHumidity(&hygro);
	    xil_printf(
		 "Temperature: %d.%02d deg F  Humidity: %d.%02d RH\n\r",
		 (int) temp_degf,
		 ((int) (temp_degf * 100)) % 100,
		 (int) hum_perrh,
		 ((int) (hum_perrh * 100)) % 100
		  );

	    // ALS

	    printLight = pollALS(printLight);
	    xil_printf("Light = %d\n\r", printLight);



    }

    cleanup_platform();
    return 0;
}



// polls the ALS pmod 5 times, averages runs, and rets an int
int pollALS(int lightVal) {
	int alsArr[5];
	// poll the als 5 times
	for(int i = 0; i < 6; i++) {
		alsArr[i] = ALS_read(&ALS);
	}
	// and average em together & ret
	lightVal = (alsArr[0] + alsArr[1] + alsArr[2] + alsArr[3] + alsArr[4]) / 5;
	return lightVal;
}


void hardwareSetup()
{
		xil_printf("starting HYGRO\n\r");
		HYGRO_begin(&hygro,XPAR_PMODHYGRO_0_AXI_LITE_IIC_BASEADDR,
				0x40,
				XPAR_PMODHYGRO_0_AXI_LITE_TMR_BASEADDR,
			    XPAR_PMODHYGRO_0_DEVICE_ID,
				XPAR_CPU_M_AXI_DP_FREQ_HZ);//start hygro with axi addr of base and timer, address 40(from IC), AXI speed.

		// ALS //
		xil_printf("starting ALS\n\r");
		ALS_begin(&ALS, XPAR_PMODALS_0_AXI_LITE_SPI_BASEADDR);

		// GPIO //
		int Status;
		Status = XGpio_Initialize(&Gpio, XPAR_GPIO_1_DEVICE_ID);
		if (Status != XST_SUCCESS) {
				xil_printf("Gpio Initialization Failed\r\n");
			}
		xil_printf("GPIO started\r\n");

		XGpio_SetDataDirection(&Gpio, 1, 3);
		XGpio_SetDataDirection(&Gpio, 1, 4);
		XGpio_SetDataDirection(&Gpio, 1, 5);
		XGpio_SetDataDirection(&Gpio, 1, 6);
		XGpio_SetDataDirection(&Gpio, 1, 7);
		XGpio_SetDataDirection(&Gpio, 1, 8);

}