topic Re: RT1064 flash driver API in i.MX RT Crossover MCUs

RT1064 flash driver API

glaukos — Fri, 22 Mar 2019 14:50:54 GMT

Hi,

i have a question about the flash driver API described in chapter 8.13 of the RT1064 processor reference manual. All functions have a uint32_t parameter named "instance". What does this refer to? It's unfortunately not explained in the manual. Thank you for your help.

Re: RT1064 flash driver API

danielchen — Tue, 26 Mar 2019 03:18:43 GMT

Hi Sebastian:

Could you please list one API that have a uint32_t instance? I didn't find them in chapter 8.13. Sorry.

Regards

Daniel

Re: RT1064 flash driver API

carstengroen — Tue, 26 Mar 2019 05:46:37 GMT

I think Sebastian means this:

I would also very much like to know this (I have not yet been successful in using the ROM API for programming the internal Flash of the RT1064)

Re: RT1064 flash driver API

danielchen — Tue, 26 Mar 2019 06:49:53 GMT

Hi Sebastian and Carsten:

It is a sequence number. Just like can interface has two instances, can0 and can1, 0 and 1 are the instance.

For flexspi, please see below lines:

#define BL_FEATURE_SPINAND_MODULE_PERIPHERAL_INSTANCE (0)

#define SPINAND_INSTANCE BL_FEATURE_SPINAND_MODULE_PERIPHERAL_INSTANCE

....

flexspi_nand_init(SPINAND_INSTANCE, config)

....

Regards

Daniel

Re: RT1064 flash driver API

carstengroen — Fri, 29 Mar 2019 10:07:57 GMT

Thanks.

I managed to get this to work, my test code is here:

https://community.nxp.com/thread/498852