Forum Discussion

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

Writing Cyclone IV on chip RAM

Hi, I used QSYS to generate a system containing on-chip RAM. I'm having trouble writing data into the RAM. I'm not sure if I just don't understand the proper writing process, but I've just been...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Are you supplying a clock to your on-chip RAM? You mention everything else - which all sounds correct. Present address and data. Then drive 'wren' high for one clock cycle. That will result in the write you want.

Depending on how you've configured your RAM the data you read may not be dependant on a clock, which (might be) why it works.

Regards,

Alex