Hello,
Please make the following modifications to the code:
1. In the IO_Matrix part:
io_cfg.isDQ32Bit = CyFalse;
io_cfg.useUart = CyTrue;
io_cfg.useI2C = CyTrue;
io_cfg.useI2S = CyFalse;
io_cfg.useSpi = CyTrue;
io_cfg.lppMode = CY_U3P_IO_MATRIX_LPP_DEFAULT;
/* GPIOs 50,51 and 52 enabled. */
io_cfg.gpioSimpleEn[0] = 0;
io_cfg.gpioSimpleEn[1] = 0;
io_cfg.gpioComplexEn[0] = 0;
io_cfg.gpioComplexEn[1] = 0x001C0000;
status = CyU3PDeviceConfigureIOMatrix (&io_cfg);
if (status != CY_U3P_SUCCESS)
{
goto handle_fatal_error;
}
2. You need not call CyU3PGpioInit() as it is called internally by the API CyU3PMipicsiInitializeGPIO().
3. You need not override GPIO50 as it is already configured as a complex in the IO_Matrix.
4. For configuring complex GPIO 50 as PWM, use the following lines of code after the API CyU3PMipicsiInitializeGPIO() is called:
/* Configure GPIO 50 as PWM output */
gpioConfig.outValue = CyFalse;
gpioConfig.inputEn = CyFalse;
gpioConfig.driveLowEn = CyTrue;
gpioConfig.driveHighEn = CyTrue;
gpioConfig.pinMode = CY_U3P_GPIO_MODE_PWM;
gpioConfig.intrMode = CY_U3P_GPIO_NO_INTR;
gpioConfig.timerMode = CY_U3P_GPIO_TIMER_HIGH_FREQ;
gpioConfig.timer = 0;
gpioConfig.period = CY_FX_PWM_PERIOD;
gpioConfig.threshold = CY_FX_PWM_25P_THRESHOLD;
status = CyU3PGpioSetComplexConfig(50, &gpioConfig);
if (status != CY_U3P_SUCCESS)
{
CyU3PDebugPrint (4, "CyU3PGpioSetComplexConfig failed, error code = %d\n",
status);
}
where CY_FX_PWM_PERIOD = (201600 - 1)
and CY_FX_PWM_25P_THRESHOLD = (50400 - 1)
You can use your own period and threshold.
Please let me know if you still face any error after making the modifications mentioned above.
Best Regards,
Jayakrishna
Best Regards,
Jayakrishna
