Re: 40pin-6 board
Posted: Thu Aug 08, 2013 9:02 pm
is there one prefer mpupin for input i can use?
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Re: 40pin-6 board
Posted: Thu Aug 08, 2013 9:17 pm
What sort of input?
Re: 40pin-6 board
Posted: Fri Aug 09, 2013 7:04 am
of course i will send you a circus boardFred wrote:Are you going to send me a blank board when you have them made?
an input for maybe in future launchcontrol or something elseFred wrote:What sort of input?
Re: 40pin-6 board
Posted: Fri Aug 09, 2013 9:18 am
Should be any free pin. Advised pins are those with least use. One of the port A pins, perhaps? Or another PWM pin (for interrupt capability)? Or whatever is easiest to route to? Or an analogue pin, which can be used as digital inputs too? Choose one and I'll OK it :-)
Re: 40pin-6 board
Posted: Fri Aug 09, 2013 9:19 am
I mean, typically so far any pin used for GP output is configured like this:
address of port
bit mask of pin
So literally any pin can be used for outputs, inputs will be the same way.
Fred.
address of port
bit mask of pin
So literally any pin can be used for outputs, inputs will be the same way.
Fred.
Re: 40pin-6 board
Posted: Fri Aug 09, 2013 10:31 am
i think its done 
attached the eagle files
attached the eagle files
Re: 40pin-6 board
Posted: Fri Aug 09, 2013 10:55 am
PDF for the rest of us, please?
Re: 40pin-6 board
Posted: Fri Aug 09, 2013 12:12 pm
okFred wrote:PDF for the rest of us, please?
Re: 40pin-6 board
Posted: Fri Aug 09, 2013 1:33 pm
Max chip still not triple decoupled. This IS important, the max chip clamps it's inputs through the power supply pins, so they are decoupled to protect the CPU, not to protect the max chip.
Good choice of pin for input.
Take a look at max chip schem in Jaguar, and read the notes, there are limitations of simple topologies here too. It's OK as is, but could be better with more parts, however maybe that's not what you need. Reference: viewtopic.php?f=9&t=1675
Looking OK. Final check by Dan and Andy before going to be made would be wise. I'll email them.
Could you also donate me the parts to populate it? Or I can pay you and you order them? I don't mind assembling/soldering it myself, but have none of that stuff on hand AFAIK.
Fred.
Good choice of pin for input.
Take a look at max chip schem in Jaguar, and read the notes, there are limitations of simple topologies here too. It's OK as is, but could be better with more parts, however maybe that's not what you need. Reference: viewtopic.php?f=9&t=1675
Looking OK. Final check by Dan and Andy before going to be made would be wise. I'll email them.
Could you also donate me the parts to populate it? Or I can pay you and you order them? I don't mind assembling/soldering it myself, but have none of that stuff on hand AFAIK.
Fred.
Re: 40pin-6 board
Posted: Sat Aug 10, 2013 8:34 am
you are meaning 10n?Fred wrote:Max chip still not triple decoupled. This IS important, the max chip clamps it's inputs through the power supply pins, so they are decoupled to protect the CPU, not to protect the max chip.
okFred wrote:Looking OK. Final check by Dan and Andy before going to be made would be wise. I'll email them.
i will wait
i think i could handle thisFred wrote:Could you also donate me the parts to populate it? Or I can pay you and you order them? I don't mind assembling/soldering it myself, but have none of that stuff on hand AFAIK.
another question:
is it possible to use a cj125 ic in future?
thomas