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Is it mandatory to have your LCd in 4-bit mode? I'm not using the CAN bus at all. I Remember disconnecting the 4 wires and losing the second line of my LCD. Do I have to bother with this if have no slaves?
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4-bit mode LCD mandatory?
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#2
- MIDIbox Guru
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Posted 01 September 2008 - 05:07
Short version: Yes.
If your LCD won't support 4bit, you can use other pins with Wilba's 8bit driver... but the CAN buss pins need to be free.
If your LCD won't support 4bit, you can use other pins with Wilba's 8bit driver... but the CAN buss pins need to be free.
#3
- MIDIbox Tweaker
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Posted 01 September 2008 - 17:20
Okay, I looked at Wilba's PCB and found that it requires me to not use J5 if I want to use his 8-bit mode. Curses!
Actually, I cut the cables on the LCD and it appears to be okay. Though I'm not sure if my LCD is susceptible to the crash described in the document I found!.
Also I should note that I didn't have the 1k pullup for a while now without any crashes on startup.
Edit: Thanks again for the info Stryd.
Actually, I cut the cables on the LCD and it appears to be okay. Though I'm not sure if my LCD is susceptible to the crash described in the document I found!.
Also I should note that I didn't have the 1k pullup for a while now without any crashes on startup.
Edit: Thanks again for the info Stryd.
#4
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Posted 01 September 2008 - 22:01
Quote
Also I should note that I didn't have the 1k pullup for a while now without any crashes on startup.
Don't worry about crashing, worry about permanently frying the pins on the PIC due to short circuits. Follow the schem :)
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