S32KのトピックRe: S32K144 longword command to program p-flash

S32K144 longword command to program p-flash

ericgasteiz — Wed, 04 Oct 2023 10:55:05 GMT

Hi there, I'm trying to program an .srec file to the p-flash of an S32K144 from a bootloader using the c90tfs_flash_driver. Actually it works pretty well. Nevertheless, I have noticed that usually the last line of the .srec file isn't programmed into the flash. It's because the data lenght of that line, which is sometimes 4 bytes, is misalligned with the p-flash block size, which are 8 bytes and the function FlashProgramm returns FTFx_ERR_SIZE . Using the FlashProgram function which it makes use of the Program Phrase command (0x07) instead of the Program longword(0x06). After doing some research within the RM of the S32k144, I realised it doesn't show "program longword" as an available command in this family of MCU. So my questions are, is it possible to program 4 bytes into the p-flash in this MCU? is the program longword command supported in this device?

Re: S32K144 longword command to program p-flash

davidtosenovjan — Fri, 06 Oct 2023 08:19:03 GMT

Hi, there is no such option there. I have checked with driver, and this option is greyed out, apparently it is related to other devices.

Program Section command granularity is the same Program Phrase. Addresses must be 64-bit aligned i.e. per 8 bytes.

Re: S32K144 longword command to program p-flash

davidtosenovjan — Fri, 06 Oct 2023 08:20:01 GMT

Also there is a srec-cat tools offering advanced capabilities as conversion between formats or formatting to predefined length as it may be required for bootloaders and similar features:

https://srecord.sourceforge.net/

Re: S32K144 longword command to program p-flash

ericgasteiz — Fri, 06 Oct 2023 08:59:55 GMT

HI David, thanks for your answer in advance. Yes I came out with that srecord tool to and is the only way I have by now to make it work. I found the solution in this post: https://community.nxp.com/t5/S32K/Flash-program-on-S32K142/m-p/1022166/thread-id/6289