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[ASK PLEASE]difference between crystal spec and osciloscope reading
dbrion0606 wrote: Perhaps it would be better (less bad, any way) , as Clawson wrote, to test with wiring directly to a "modern" PC -with a serial port..- (or to use USART <-...
Wednesday, 26 April 2017 - 11:56
[ASK PLEASE]difference between crystal spec and osciloscope reading
dbrion0606 wrote: Another way to check whether max232 is broken is, if your max232 are on a support, to swap the ICs (ie : put the max232 from the working circuit into the non...
Wednesday, 26 April 2017 - 10:05
I2C to RS485 converter
js wrote: It is false that RS485 does not need a shared ground. Unless you use transformer isolated RS485? Otherwise yes GND is needed.   In no way should it be...
Wednesday, 12 April 2017 - 09:09
Help me spot my mistake?
sparrow2 wrote: Then don't mark the code with those ;)  (easier said than done I know) I was more thinking about ISR etc.   {8:-P}-- Even ISRs have work to do.  S...
Friday, 7 April 2017 - 10:53
Help me spot my mistake?
sparrow2 wrote: Assemblers should have a function, where you mark a block, and registers that change within gets pushed and poped :)   Unless it is the particular function...
Friday, 7 April 2017 - 09:37
Help me spot my mistake?
ront1234 wrote: You should POP in order R18, R17, R16.   Sharp eyes.  Points to you.  I've been burned by that more than once myself.   S.  
Friday, 7 April 2017 - 08:55
Bend the PCB
More specifically helpful (I just ordered boards from them, although mine aren't supposed to be flexible (I guess one could flex them, if you tried hard enough... (once)))....
Wednesday, 29 March 2017 - 23:00
Stepper Motor Driver Advice
No problem.  We're used to machine-gun fire commentary.  Me?  I took a nap.   Anyhow...  There would be a problem with an individual step signal if it...
Thursday, 16 March 2017 - 15:24
Stepper Motor Driver Advice
No, it's not latency.  The technical term is "Fan-out".   You might think a digital logic circuit element composed entirely of "A=A" is useless, but you'd be wrong...
Wednesday, 15 March 2017 - 16:35
Stepper Motor Driver Advice
Actually, it's the torque of the motor itself that's the problem.  When you power-off (or 'disable') a microstepped stepper it will tend to want to snap to the nearest 'step...
Wednesday, 15 March 2017 - 14:39
Stepper Motor Driver Advice
Enable them all, and just give them each discrete "STEP" signals.   That's what I'd be tempted to do.    I concur that using ENABLE as a chip select will NOT work,...
Wednesday, 15 March 2017 - 12:38
16 bit binary counter using AVR Assembly Language on ATmega328P
ishanshetye wrote: The counting function is in the while1 loop. Will that not work?   I see an INC r22 in there.  But no inc of r16 or any other register.  All...
Friday, 10 March 2017 - 04:17