Search found 15 matches

Thanks PCM programmer

I've looked into configuration bits before, but when I used the fuses you used, it would not work. According to the datasheet 20Mhz external is HS. However I tried changing my configuration bits to us ...

Compiler version is 4.016

The configuration I'm using is

Oscillator - RC
Watchdog timer - off
Power up timer - on
brown out detect - on
low voltage program - disabled
flash program write - ...

I'm trying to setup I2C communication between two PIC16F877As. I have two 20Mhz external clocks one for each of the two pics which I connected to the OSC1/CLKI pin on each of the pics. I connected two ...

Thanks for your help guys. I'm thinking that if I could get the master pick using its i2c line to communicate with the six slaves. Then the master could also communicate with the PDA using rs232 commu ...

I'm trying to interconnect a master, six slaves and a PDA using the rs232 communication line. I've heard that this is possible with the proper protocol. However I noticed that when I connect a pic wit ...

I am planning on connecting one Master PIC to 6 slave pic's and a palm. I was looking for advice on what sort of communication should I use. Should I use rs232 or I2C? I need the Master PIC to receive ...

Thank you PCM Programmer and gammla. I'm going to try the resister idea.

When it comes to practical applications, I am really new at this. I'm trying to learn as much as I can in the shortest amoun ...

Was looking at something around 0.1mV accuracy. But doesn't look like a PIC16F877A can handle that. So I'll just use op amps, not a big deal.

Simeon

Sorry, I should have mentioned that I was trying to do the analog to digital conversion with a PIC16F877A. So would it be possible for the PIC16F877A to have high resolution?

I just wanted to confirm that if I get an analog signal that works from 75mV to 100mV, then I would not be able to capture that signal properly unless I used an opamp to amplify the signal to the 0 - ...

Ok, I solved the problem. It was very silly, but hopefully someone else working with card readers can avoid this. The MCR.c file was designed for 2 tracks, and I used pins B0 - clock output, B1 and B2 ...

I was able to read the card values. However I don't understand the values I have received. I've read that there is some sort of encryption on the cards, and you can't just straight out read the card n ...

I guess my greatest problem with 'detective work' is that I assume too much. I assumed CCS did not have a built in function for card readers. So I did not even look there. After more searching I had f ...

Has anyone used a magnetic card reader before. I currently got a Hitachi-Omron V3B-4 card reader. I looked for a datasheet, but could not find one. Has anyone used a card reader before. Any help or sa ...