Hello Everyone,
In my application, i am using external Nor flash. I run my code from XiP then i want to configure flash section like 0x3000 0000 + (Bootloader) and 0x3040 0000 - (EEprom). Therefore, i imported SDK example which is "evkbmimxrt1170_fsl_romapi_cm7". I used everything same even pin initialize in example. I just changed some Lut commands and .option0.U = 0xC0000005U. When i run code, i get Vendor ID successfully. After that, example calls ROM_FLEXSPI_NorFlash_Erase() function and my program crashes. Error is 7001 "Sequence execution timeout error occurred during FLEXSPI transfer"
(Some informations in my app: AT25SF321B is my external Nor Flash.
SerialNorTotalSize = 0x400000 , SerialNorSectorSize = 0x1000, SerialNorPageSize = 0x100, FLEXSPI_BASE = 0x30000000, SECTOR_INDEX_FROM_END = 2 )
Here is my questions:
1) My flash size is 4MB so 0x400000 is end adress. In example, Erase function use address 0x3FE000 but reference manuel says flexspi starts from 0x30000000 + 0x400000(flash size). Therefore, should we send 0x303FE000 to erase function?
2) While testing my code, i sent 0x3FE000 address to write 256 bytes(1 page) buffer. After function call, function assigns buffer's value to right address but my program crashes. I did not figure out what causes that yet.
3) ROM_FLEXSPI functions are function pointer. I did not find any explanation about functions. In reference manuel, functions are just copy-pasted. Is there any documentation?
4) I do not know that i set correst Lut sequence for erase function. Page program, read command etc. mentioned in reference manuel but there is not erase command. Can you check my Lut?
5) As i mentioned above, can i split flash sections with ROM_FLEXSPI functions?
6) I want to check memory after function calls. Hence, can i debug this example?
I share my config below and i realy need help about Error => "7001 - Sequence execution timeout error occurred during FLEXSPI transfer".
Best Regards,
Basri KAYA
