Ask anything your want about the 32X Mushroom programming.
Moderator: BigEvilCorporation
-
Chilly Willy
- Very interested
- Posts: 2984
- Joined: Fri Aug 17, 2007 9:33 pm
Post
by Chilly Willy » Thu Jul 23, 2009 3:11 am
Hmm... looking at the doc again, I guess it does say that DMA is only 68000 to SH2. So I guess you need some other way to send data the other direction.
-
TascoDLX
- Very interested
- Posts: 262
- Joined: Tue Feb 06, 2007 8:18 pm
Post
by TascoDLX » Thu Jul 23, 2009 4:43 am
You should be able to transfer easily thru the comm port. It just requires a little bit of sync. Fahrenheit uses this method to send 10 to 20 KB frames, 12 bytes at a time, from Word RAM to the SH2. Transfering in the other direction shouldn't be a problem.