topic Initialize SDRAM with 166 MHZ via DCD in i.MX RT Crossover MCUs

Initialize SDRAM with 166 MHZ via DCD

Masmiseim — Thu, 16 Jan 2025 09:08:01 GMT

Hello NXP Team,

We are trying to initialize the SDRAM (16 bit) with DCD, except for the clock everything seems to work quite well. But we are not able to set the required 166 MHz. The clock is always set to 198 MHz. Do you have an example for 166 MHz?
I have attached our current configuration.

Thank you very much

Re: Initialize SDRAM with 166 MHZ via DCD

Omar_Anguiano — Thu, 16 Jan 2025 23:06:50 GMT

Please use this configuration for 166Mhz clock.

This will set the SEMC with this source and this divider.

Best regards,
Omar

Re: Initialize SDRAM with 166 MHZ via DCD

Masmiseim — Mon, 27 Jan 2025 15:09:24 GMT

Thanks for the feedback. Seems to work