/*
* Reset the image sensor using GPIO.
*/
void SensorReset(void) {
CyU3PReturnStatus_t apiRetStatus;
uint16_t preTick, posTick;
/* Drive the GPIO low to reset the sensor. */
//apiRetStatus = CyU3PGpioSetValue(SENSOR_POWER_GPIO, CyFalse);
apiRetStatus = CyU3PGpioSetValue(SENSOR_RESET_GPIO, CyFalse);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "GPIO Set Value Error, Error Code = %d\n",
apiRetStatus);
return;
}
CyU3PDebugPrint(4, "GPIO Set Value\r\n");
/* Wait for some time to allow proper reset. */
uint8_t i = 0;
while (i++ < 2){
preTick = CyU3PGetTime();
CyU3PThreadSleep(500); // change the value into 100 from 10.
posTick = CyU3PGetTime();
CyU3PDebugPrint(4, "The ticks %d %d \r\n", preTick, posTick); //additional debug
//;//CyU3PDebugPrint(4, "cpu pause \r\n");
}
/* Drive the GPIO high to bring the sensor out of reset. */
//apiRetStatus = CyU3PGpioSetValue(SENSOR_POWER_GPIO, CyTrue);
apiRetStatus = CyU3PGpioSetValue(SENSOR_RESET_GPIO, CyTrue);
if (apiRetStatus != CY_U3P_SUCCESS) {
CyU3PDebugPrint(4, "GPIO Set Value Error, Error Code = %d\n",
apiRetStatus);
return;
}
/* pause the cpu */
while (i++ < 4){
CyU3PThreadSleep(600); // change the value into 100 from 10.
//;//CyU3PDebugPrint(4, "cpu pause \r\n");
}
return;
}
int FpgaBeginProgram(void)
{
CyBool_t value;
unsigned tEnd;
CyU3PReturnStatus_t apiRetStatus;
apiRetStatus = CyU3PGpioSetValue(GPIO_nCONFIG, CyFalse);
if (apiRetStatus != CY_U3P_SUCCESS) {
return apiRetStatus;
}
tEnd = CyU3PGetTime() + 10;
while (CyU3PGetTime() < tEnd);
apiRetStatus = CyU3PGpioSetValue(GPIO_nCONFIG, CyTrue);
tEnd = CyU3PGetTime() + 1000;
do {
apiRetStatus = CyU3PGpioGetValue(GPIO_nSTATUS, &value);
if (CyU3PGetTime() > tEnd)
return -1;
} while (!value);
return 0;
}
