Recent content by bigg_al

40X2, I am relying on the CPU to parse the incoming data for the "F". Once that is received then the next 14 characters go in the scratchpad at 0. I guess it isn't a true independent UART even in "background" mode. I already tried receiving various byte counts in background mode and then using a...

I have wasted countless hours writing "test" programs to try and figure out why seemingly simple tasks don't work properly with a Picaxe. In this case it involves the high speed serial commands. I have tried a dozen different ways to parse incoming 9600 baud data looking for a particular string...

Thank you for the replies. It took a few tries, but I was able to communicate with the chips again. I did not have both sets of V+ and 0V hooked up. I do now.

Now that I've started bread boarding to check out my code, I've hit another roadblock, grrr. I am using the PIC18F45K22 which should run on 2.1 to 5.5 volts. I am using a regulated 5 volt supply. In each case everything seemed fine. I was able to download and run a few iterations of my code...

C.2 is a pin name or symbol. There is nothing in the manual that says it can be used as a byte variable. Why does it allow b0=S.2 when S.2 isn't a valid pin name? There is other confusing stuff I have come across related to this topic, don't have time to sort it out right now. My code that is...

Why does this work? B0=C.2 'C.2 isn't a valid byte value low B0 'A byte value isn't a valid pin letter dot number name

Thanks for the responses guys. I'll try to explain what I am trying to accomplish better. I assigned symbol names to 12 output pins. A number (1 to 4) received on the serial port will need to select which group of 3 pins will be used in an interrupt routine. I don't want to write 4 copies of the...

I may be expecting too much of this platform. It seems like it should be a simple matter to do this, but it seems that I cannot indirectly address in/out pins. In simplified terms, I need to read a number from the serial port then select which group (1 of 4) of three pins (out of 12 pins total)...