topic Re: Spi_flash in S32K

Spi_flash

intern_praveena — Thu, 30 May 2019 07:00:23 GMT

Hi, I am using S32K!44_LQ64 , I m new to the topic SPI FLASH.SO i want know to how to read a device number in simple.anyone help me to code ???

Re: Spi_flash

jorge_a_vazquez — Tue, 04 Jun 2019 16:58:19 GMT

Hi Praveena F

Unfortunately, this is dependent of the memory that you use, normally the SPI memory includes different commands and timings for reading and writes operations, but as mentioned, they are using different commands which are listed in the datasheet of the memory.

You can create your code using the SDK example of the Master_SPI as a base. Just for give an example, the Micron M25P80 Serial Flash need a command of one byte with 0x9F at address 0 for READ IDENTIFICATION.

Hope this information could help you
Have a great day,
TIC

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Re: Spi_flash

intern_praveena — Thu, 06 Jun 2019 05:54:23 GMT

I can't get it.Just i want to read device id.can u make some example code for me???

Re: Spi_flash

jorge_a_vazquez — Thu, 06 Jun 2019 15:21:06 GMT

Hi Praveena F

As I mentioned in my previous post, this is a very memory dependent implementation, I don't have the memory that you are using, so I couldn't test the code for you. But you can check the example code in the SDK, there is an example for SPI_master transfer, you can check what is send and read, and according to your memory, send the command to read the device ID.

If you have any problem with the example code or the implementation, I would glad to help you.

Regards

Jorge Alcala