That graph shows a rise time of 1uS by only using a 15.8k pull-up resistor. It also shows that by using the LTC4311 you get an almost perfect waveform. It looks like this LTC4311 chip is exactly what...
If you keep messing up the "comma-separated" file prep like I do (the SAVE feature from Open Office is not smooth), consider using a script if you are I.S. savvy.
If you connect a logical analyzer to the serial lines, you know for sure if data is being transmitted or not. That would have saved you a lot of time. I always put in my PCB designs a testing point...
Okay, I think I might have solved this one. I didn't have the TRIS of the transmit pin configured as an output. I was under the erroneous impression the UART controller trumped control of any port...
I was originally planning on making 2 sets of MCP23017 circuits; 1 for input with debounce, 1 for output. But even with JLCPCB it comes out to $1 / PCB. I'd like to lower my cost more, and not have...
Re: Filtering noise from a wire
That graph shows a rise time of 1uS by only using a 15.8k pull-up resistor. It also shows that by using the LTC4311 you get an almost perfect waveform. It looks like this LTC4311 chip is exactly what...
rsocor01 Today, 12:25