What is the memory at this address?

RE: What is the memory at this address?

Simon — Tue, 31 Dec 2019 14:05:23 GMT

Check out this ticket, which explains how to figure out the start address of the FDS pages. You are seeing the tag 0xDEADC0DE, which is the start of an FDS page.

Best regards,

Simon

RE: What is the memory at this address?

moon.kim — Mon, 30 Dec 2019 10:09:29 GMT

How do I know the FDS storage pages area address?

RE: What is the memory at this address?

Dmitry — Fri, 27 Dec 2019 10:46:38 GMT

Hi,

it looks like FDS storage pages.

RE: What is the memory at this address?

moon.kim — Fri, 27 Dec 2019 10:02:33 GMT

HI.

No. I'm using the checksum feature provided by the IAR compiler.

Just use it to check the integrity of flash memory.

Problem is as follows.

I write the CRC16 2byte value from the IAR compilation into the last address, 0x2FFFE.

And check the flash memory by calculating CRC16 from 0x19000, the starting address of application.

At address 0x2D000, 0x2E000, there is a value that is not in Hex file.

But when actually read Flash memory, there is data at that address.

Data at addresses 0x2D000, 0x2E000 in Hexa file

Data at addresses 0x2D000, 0x2E000 in flash memory

What is this data?

RE: What is the memory at this address?

Simon — Fri, 27 Dec 2019 08:27:14 GMT

Are you referring to the CRC check performed by the bootloader? If so, check out the answer given in this thread, which I think may help you.

Best regards,

Simon