topic Re: i.MXRT1062: SEMC 16b data, 13b addr, CS,CLK,WR can be used to access external devices ? in i.MX RT Crossover MCUs

i.MXRT1062: SEMC 16b data, 13b addr, CS,CLK,WR can be used to access external devices ?

Soos — Thu, 02 May 2024 20:30:21 GMT

Hi All,

Anybody has used i.MX RT 1062 as a processor with external address/data bus & control signals like RD/WR, CLK, CS ?

I want to use this controller to replace Freescale processor of our legacy product.

If you know any reference design or application note, please provide me link.

Thanks a lot !

Re: i.MXRT1062: SEMC 16b data, 13b addr, CS,CLK,WR can be used to access external devices ?

onyourlight — Fri, 03 May 2024 15:30:38 GMT

What is the Freescale processor model of the old product?

Re: i.MXRT1062: SEMC 16b data, 13b addr, CS,CLK,WR can be used to access external devices ?

Soos — Fri, 03 May 2024 17:12:49 GMT

MCF5272CVM66 & MCF5328CVM240J

Re: i.MXRT1062: SEMC 16b data, 13b addr, CS,CLK,WR can be used to access external devices ?

Omar_Anguiano — Tue, 07 May 2024 00:19:30 GMT

The SEMC can be used to access external devices such as SDRAM, NAND, etc. There is an example of this module on the EVKs as they integrate an SDRAM connected through this module.

Is this the use case you are searching or how you want to interface it?

Best regards,
Omar

Re: i.MXRT1062: SEMC 16b data, 13b addr, CS,CLK,WR can be used to access external devices ?

Soos — Wed, 08 May 2024 13:15:43 GMT

We want to interface external SRAM, FLASH & some latches, decoders.

Re: i.MXRT1062: SEMC 16b data, 13b addr, CS,CLK,WR can be used to access external devices ?

Omar_Anguiano — Wed, 08 May 2024 23:09:20 GMT

There is only an example of the SDRAM usage as the EVKs have this memory connected.
You can check some guides on how to connect different devices in the SEMC chapter of the Reference Manual.

Best regards,
Omar