Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
22 years ago

What's wrong with the Flash-programmer?

I use flash-programmer to download the sof+elf files to the EPCS4(ref=U13), the actual project is called dl900, and my own target board called dl900_200, I use mk_target_board command to create it; ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
22 years ago

:( I've had exactly the same problem with my EP1C6 based custom board named 'cleverscope'. At first I thought it was that I was writing too much data to the serial EEPROM, but then I used the small version of the Newlib library, and got exactly the same verification failure with less than 128k of data.

I'm using 4M bit serial eeproms - they are made by ST (25P40) and I'm wondering if there is a timing fault in the SPI driver. Looking at the data sheets the 25P40 is identical to the EP1S4, so that shouldn't be it. However will do some independant comparison testing of writing and reading data, and keep you posted.

cheers, Bart