1
Discussion - Drivers / Re: Support different maximum clock frequency on UMFT4222EV and FT4222HQ
« on: May 24, 2024, 04:41:27 pm »
Hello,
Sure if you try system clock to 60MHz, then use FT4222_SPIMaster_Init and set clock_div to CLK_DIV_2 (1/2 System Clock) which should give 30MHz on SCK.
Your issue could be weak SPI signals when you configure clock to 30MHz or 40MHz.
You can try adding pull high resistor on the SPI pins especially the clock.
If you are still having issues contact our Taiwan Support team:
tw.support1@ftdichip.com
Best Regards,
FTDI Community
Sure if you try system clock to 60MHz, then use FT4222_SPIMaster_Init and set clock_div to CLK_DIV_2 (1/2 System Clock) which should give 30MHz on SCK.
Your issue could be weak SPI signals when you configure clock to 30MHz or 40MHz.
You can try adding pull high resistor on the SPI pins especially the clock.
If you are still having issues contact our Taiwan Support team:
tw.support1@ftdichip.com
Best Regards,
FTDI Community