From £79.95 |
Buy it Now Compatible with PIC® 17C752, 17C756A |
I saw a mention further up the thread about 1-wire comm.
OBD-II signal protocols. ISO 9141-2. This protocol has an asynchronous serial data rate of 10.4 kbit/s. It is somewhat similar to RS-232;...
Me too. But if I removed my post, the thread closed again.
:)
could do.........
1)
'
restarting:
pause 1000 ............... wait a second or 2 to reset all
@ RESET
'
or 2)................
if all slaves are on same 5 or 3 volt supply, then use a small...
A tri-state general I/O pin on the master.
Output low = reset
Input = do nothing
I can't say. This is all theory for now, but is supported by posts on google and a forum elder,...
But will that work if the slave is caught in a loop or some such?
I'm aiming for a complete reset with no decision from the slave.
This comm scheme sounds like ISO-9141. Been around for years.
DaveP Yesterday, 13:22you could do in software..... send out to one or all listeners a command to goto a restart routine like.... which "provides a way to execute a MCLR in software"
,
,
,
restarting:
@ RESET
I can post here just fine. I see it opened.
Ioannis
What drives the MCLR pin of the slaves? A PIC output?
I am asking, because the MCLR pin needs a level of 0,2*Vdd to see LOW (for the 16F177x series, but I guess it is the same for others).
It...
Re: Multiple PICs on usart network
Car automakers had to do it with better electrical characteristics I guess.
Ioannis Today, 07:00I'd also choose 2 wires USART classic setup. Tested and guarrateed to work just fine.
Ioannis