[email protected] wrote:
> For the 18f devices it is only one instruction (likely because the
> shadow regs are not required due to the LATB registers)
You are right again!
In the meantime I have updated the hd44780 libs:
I have replaced the nop with a _usec_delay(1).
And I was too quick with:
> BTW In the ASM listing of a test program I think I see another issue:
> the data port is updated *after* lcd-en = high, while it is supposed
> to be set before it. Looks like the compiler shuffled instructions.
> I have to figure this out... (but I'm afraid not today).
This was a misinterpretation: it was the result shadowing in my test
program which used a 16F877a.
Regards, Rob.
--
Rob Hamerling, Vianen, NL (http://www.robh.nl/)
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