Re: [Openocd-development] flash driver problem on LPC2148

[Edgar G. <edg...@zy...>]

Hi Jonathan,
> Have a look at your LPC's datasheet, particularly the Memory Mapping
> Control part of the System Control Block documentation. I bet if you switch
> the MEMMAP register to 0x1 to view user flash, you would see what you expect.
>   

I found the documentation bit describing the usage of the Memory Mapping 
Control, thanks for the tip. From my point of view, there should be a 
line in a reset event script to write 1 to this register. This way, the 
binary written to flash will also pass verify_image.
mwb 0xE01FC040 0x01

On the other hand, there seems to be another problem:

 > mwb 0xE01FC040 0x01
 > mdw 0 32
0x00000000: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 
ffffffff ffffffff
0x00000020: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 
ffffffff ffffffff
0x00000040: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 
ffffffff ffffffff
0x00000060: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 
ffffffff ffffffff
 > flash fillw 0 0xaabbccdd 24
wrote 96 bytes to 0x00000000 in 0.625000s (1.750000 kb/s)
 > mdw 0 32
0x00000000: aabbccdd aabbccdd aabbccdd aabbccdd aabbccdd 54dd65f5 
aabbccdd aabbccdd
0x00000020: aabbccdd aabbccdd aabbccdd aabbccdd aabbccdd aabbccdd 
aabbccdd aabbccdd
0x00000040: aabbccdd aabbccdd aabbccdd aabbccdd aabbccdd aabbccdd 
aabbccdd aabbccdd
0x00000060: ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 
ffffffff ffffffff

and, even more into the "typical user operation" area:

 > flash erase_address 0 0x2000
erased address 0x00000000 length 8192 in 0.557000s
 > flash write_image 
C:\workspace\open_ocd\testing\examples\LPC2148Test\test_rom.elf
wrote 364 byte from file 
C:\workspace\open_ocd\testing\examples\LPC2148Test\test_rom.elf in 
0.153000s (2.323325 kb/s)
 > verify_image 
C:\workspace\open_ocd\testing\examples\LPC2148Test\test_rom.elf
checksum mismatch - attempting binary compare
Verify operation failed address 0x00000014. Was 0x58 instead of 0x60

Regards,
Edgar