I2C not reading data

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I2C not reading data

Postby Jonny » Tue Jan 30, 2018 8:29 pm

Info:
Code: Select all
Bus Pirate v3b
Firmware v5.10 (r559)  Bootloader v4.4
DEVID:0x0447 REVID:0x3046 (24FJ64GA002 B8)
http://dangerousprototypes.com
CFG1:0xF9DF CFG2:0x3F7F


Hello,
I have connected the Bus Pirate to a I2c bus and would like to sniff it. I have it scan for devices, i know there are 2 devices on the bus, however each time it scans it returns different data. When it is in sniffing mode it only prints out start and stop brackets but no data.

I am wondering if this issue is caused by noise or a bad board, i had a issue with the serial UART reading trash data and noticed the USB led was barely flashing while this was going on. Does anyone have a experience with this sort of problem?

Code: Select all
(1)
Searching I2C address space. Found devices at:
0x3E(0x1F W) 0x3F(0x1F R) 0x40(0x20 W) 0xAE(0x57 W) 0xB0(0x58 W)

I2C>(1)
Searching I2C address space. Found devices at:
0x3C(0x1E W) 0x3D(0x1E R) 0xAE(0x57 W) 0xB2(0x59 W)

I2C>(1)
Searching I2C address space. Found devices at:
0x06(0x03 W) 0x07(0x03 R) 0x08(0x04 W) 0x74(0x3A W) 0x75(0x3A R) 0xE7(0x73 R) 0xE8(0x74 W) 0xEA(0x75 W)

I2C>(2)
Sniffer
Any key to exit
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Jonny
Newbie
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Joined: Tue Jan 30, 2018 8:10 pm

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