RE: Coldfire and S1D13700 LCD controller
Steve Strobel <[email protected]>
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers.coldfire |
|---|---|
| Message-ID | <[email protected]> |
At 07:46 AM 1/24/2008, you wrote: >Hi Steve, > >Thanks for the schematics. We got it to work using the generic bus (as they >call it) At this point we're just using wait sates instead of TA. I am glad to hear that you got it working. As I recall, the TA response time varies widely, and even 16 wait states (the most we could use) wasn't always enough. If things are inconsistent, you might want to put a scope on TA and make sure that it always asserts before your wait states expire. Even if you do connect the TA, you may be able to leave the wait state bus cycle termination enabled. Whichever occurs first will terminate the bus cycle. In our case, even with the max wait state setting, the LCD chip sometimes needed even more time than provided and the wait state logic would terminate the bus cycle too early, so we had to switch to using only TA. Steve --- Steve Strobel Link Communications, Inc. 1035 Cerise Rd Billings, MT 59101-7378 (406) 245-5002 ext 102 (406) 245-4889 (fax) WWW: http://www.link-comm.com MailTo:[email protected] --- [email protected] Send a post to the list. [email protected] Join the list. [email protected] Join the list in digest mode. [email protected] Leave the list.