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Hi Sir,
I have a question about config SPI
io_cfg.useSpi = CyFalse; <- use this setting , the CX3 can work well
io_cfg.useSpi = CyTrue; <- use this setting , the CX3 can not work, the E-CAM can not recognized CX3
it seems the PC host not get the CX3 descriptor.
My setting as below:
#define DUMMY_COMPLEX_GPIO 56
main()
{
...
/* Configure the IO matrix for the device.*/
io_cfg.isDQ32Bit = CyFalse;
io_cfg.useUart = CyTrue;
io_cfg.useI2C = CyTrue;
io_cfg.useI2S = CyFalse;
io_cfg.useSpi = CyFalse;
io_cfg.lppMode = CY_U3P_IO_MATRIX_LPP_DEFAULT;
/* No GPIOs are enabled. */
io_cfg.gpioSimpleEn[0] = 0;
io_cfg.gpioSimpleEn[1] = 0;
io_cfg.gpioComplexEn[0] = 0x0;
io_cfg.gpioComplexEn[1] = 0x1<<(DUMMY_COMPLEX_GPIO-32);
status = CyU3PDeviceConfigureIOMatrix (&io_cfg);
}
BR
Ben
Solved! Go to Solution.
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USB Superspeed Peripherals
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Hi Ben,
Please refer to pin description in the CX3 datasheet : https://www.cypress.com/file/133591/download.
Pin number 56 is for SPI_MISO when SPI is enabled, but in your application, 56 pin is also used as a complex GPIO. Try changing the pin for Complex GPIO.
Also, check if any of the APIs are failing in the firmware.
Best Regards,
AliAsgar
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Hi Ben,
Please refer to pin description in the CX3 datasheet : https://www.cypress.com/file/133591/download.
Pin number 56 is for SPI_MISO when SPI is enabled, but in your application, 56 pin is also used as a complex GPIO. Try changing the pin for Complex GPIO.
Also, check if any of the APIs are failing in the firmware.
Best Regards,
AliAsgar
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Hi Sir,
when i setting the io_cfg.useSpi = CyTrue, and must not setting the complex GPIO, then the CX3 can work well.
Thank you for your answer.
BR
Ben