BusPirate

..

• TeraTerm // Serial port 115200

Wiring

Chip                    Buspirate
----                    ---------
VCC>- orange + green ---<+5V / VPU
SCL>- magenta ----------<CLK
SDA>- gray -------------<MOSI
GND>- brown ------------<GND

• MISO - master in slave out
• MOSI - master out slave in
• DO - data out - must connect to the MISO
• DI - data in - must connect to the MOSI

Commands

Setup

I2C> m
...
4. I2C
...

(1)> 4
I2C mode:
 1. Software
 2. Hardware
(1)> 1
Set speed:
..
2. ~50kHz
..
(1)> 2

PowerUp the device

I2C>W
POWER SUPPLIES ON
Clutch enganged!!!

• p - pullup resistors
• P - pullup resistors

Check voltages

• v

Pinstates:
1.(BR) 2.(RD) 3.(OR) ..
GND    3.3V   5.0V   ...
P      P      P      ...  I
GND    3.28V  4.93Va ..

Reading

[0xa0 0x00 0x69]
[0xa1 r:20]

Writing

[0xa0 0x00 0x69 0x42 0x42 0x42]