Index a bit through a portion of a port

[ecoli-557]

Wow, so simple. This is MUCH better than what I started with. However, the LEDs do come on one at a time until they are all on. Then they go off one at a time untill all are off.I understand what you said and are doing by using the logical NOT.Is there a way to turn on only onle LED at a time? eg, 1st packet = LED1 on and all others are off, 2nd packet in=LED2 on and all others off, 3rd packet=LED3 on all others off, 4th packet =LED4 on and all others off, 5th packet=LED1 on all others off, etc??BTW, solved my CRC16 issue - it now works!Thanks again Darrel.

[Darrel Taylor]

LED1 = !!(packetRcvd=1)
LED2 = !!(packetRcvd=2)
LED3 = !!(packetRcvd=3)
LED4 = !!(packetRcvd=4)

[ecoli-557]

It added it but ALL the LEDs came on. What I added was (can't seem to master the code posting.....) I added LED1=!!(pkt_cntr=1) and so on.

[Darrel Taylor]

It added it but ALL the LEDs came on.

Do your LED's go to ground or VDD?

If they go to VDD, only use 1 "!"

LED1 = !(pkt_cntr=1)
LED2 = !(pkt_cntr=2)
LED3 = !(pkt_cntr=3)
LED4 = !(pkt_cntr=4)

[ecoli-557]

Thanks, They are pulled up to +5v via 1K. I just tried the single '!' and none light.The base address and offset I understood, the suggestion LED1 = !(pkt_cntr=1) and so on I do not understand. Care to enlighten?

[ecoli-557]

Darrel-Your add DOES work. SOmehow my variable 'pkt_cntr' is getting weird values like $94, $46, $19, $C0. Strange for such a simple counter.I will continue to look into it.I would like to fully understand the command 'LED1 = !(pkt_cntr=1) so I can learn.....Thanks and Regards,Ecoli-557

[Darrel Taylor]

Yes, it does work.
But you seem to come to those conclusions while I'm working on something to prove it.
That's twice now today.

>> .I would like to fully understand the command 'LED1 = !(pkt_cntr=1) so I can learn
Think about it. Then tell me how it works.