Hey All,
I have a Blackfin 533 EZKit. I have ahd great success with every peripheral except the SDRAM.
The doccumentation states that the SDRAM bus is automatically configured so long as the auto-configure box is checked under Target Options(which it is)
I must be oversimplifying this because now the SDRAM should be memory mapped from 0x0000 0000 to 0x07FF FFFF, but when I try to write to
0x0000 0000 and then read from it, I get undefined data back. It will change from one attempt to the next. I usually get 0x0C or 0x90.
If I try to use DMA to write a small array into memory, I get a DMA error. I can't seem to find where the errors are further defined as more than just DMA error.
If I veiw the memory using the Memory Viewer, the memory shows 33 CC
33 CC....
I saw that someone else once had a problem with this and it was solved by downloading an update. Before I upgraded to version 3.5, the EZKit would send nothing but errors if I tried to access SDRAM. At least that is fixed now.
So does anyone know the correct procedure for performing a write/read to the SDRAM on the Blackfin 533 EZKit?
I will be eternally grateful
Cheers,
Rob