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Altera_Forum's avatar
Altera_Forum
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14 years ago

Simple question regarding memory, just curious.

Hello everyone! I have a 32bits /2k onchip memory. This means i have 64 adresses When i use IOWR32DIRECT(1) at the adress 0x00, the adresses 0x01 0x02 and 0x03 recieve the value 1 also. I und...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

It sounds like the function you are using is using byte addressing, but only really supports word addressing:

IE If you write 0x33221100 to address 0x00

but read back address 0x01 the data still looks like:

0x33221100

Because the lower to bits of the address do not matter as far as the system is concerned, and it's up to you to pick the correct byte out of the 32 bit word.

Pete