topic Re: Parallel NOR flash connection with MK64, Data write error in Kinetis Microcontrollers

Parallel NOR flash connection with MK64, Data write error

NEIL4 — Wed, 06 Jul 2022 13:26:43 GMT

SchematicWaveform: CS,ALE,OE,WE,ADDRESS_0

I have interfaced 16bit NOR flash(SST39LF802C) with MK64 via Latch (54ABT16373A), the connections are made as per the above diagram. Programming had done as per App. Note(AN4393).

During read, write and erase, the OE and CS are always at HIGH logic state. Due to which could not able to perform any operation on the flash. Any feedback is really helpful. Thank you!

Re: Parallel NOR flash connection with MK64, Data write error

vicentegomez — Thu, 21 Jul 2022 01:18:42 GMT

Can you check that there is not any hardware issue?

Maybe you have an open pin

Regards

Re: Parallel NOR flash connection with MK64, Data write error

NEIL4 — Fri, 22 Jul 2022 12:58:17 GMT

Can you check that there is not any hardware issue?

Maybe you have an open pin

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1. The GPIO toggle works fine at the Flash end, So don't think so any open air. But any Read and Write doesnot work.

Re: Parallel NOR flash connection with MK64, Data write error

vicentegomez — Sun, 24 Jul 2022 17:19:22 GMT

So you can send data from the K64, the gpio can send the information only the driver for the NOR is not working

Please check that the configurations are correct, I do not know if there is any special set for your NOR Flash