Just testing, Turn your Junebug into a PICKit2 Serial Analyzer *with a second 18F2550

[blueroomelectronics]

I was just tinkering with one of my Junebug kits and thought I'd load the Microchip PICkit2 Serial Analyzer firmware onto a spare 18F2550 and swap the chip for the programmer chip.

Seems OK so far, I'll test the I2C master mode tomorrow and update this thread.

The I2C pins (not available externally on a genuine PICkit2) are available from the 16 pin expansion connector along the top of the Junebug.
**broken link removed**
**broken link removed**

 

[AtomSoft]

Nice idea Bill. Hope it works well so i can try it too

 

[blueroomelectronics]

Well the I2C Master mode works, you need a pair of 4.7K pullups on CON3 (RB1 = SCL, RB0 = SDA) and you're good to go. Talking to a PCF8575 with this.

 

[AtomSoft]

nice to know.... I guess ill try it later on today

 

[blueroomelectronics]

It's actually pretty handy, now if I can only get the hang of the PCF8575

Sent I2C Write Cmd:
[S_][4E][00][00][P_]

[S_][P_]

Sent I2C Receive Cmd:
[S_][4F][02][P_]

[S_][02][00][P_]

 

[AtomSoft]

i just noticed my junebug top header is damaged so i will perform emergency operation later on today and replace it with a new female header.