Comments on: How-to: The Bus Pirate, universal serial interface

By: David

David — Fri, 13 Nov 2009 15:09:32 +0000

nm i found what i was looking for…

By: David

David — Fri, 13 Nov 2009 00:55:27 +0000

hey.. do you know a good site where i can get this board made.?

By: David

David — Fri, 23 Oct 2009 17:49:00 +0000

OH..! i was woundering how you got the path set.. im still a bit new to this stuff.

By: Ian

Ian — Fri, 23 Oct 2009 17:15:11 +0000

@david – I made this board with the photo-positive process.

By: David

David — Fri, 23 Oct 2009 16:35:48 +0000

Maybe its just me but where did He get the Board form.. did he make it or buy it.???

By: Ian Lesnet

Ian Lesnet — Wed, 24 Jun 2009 08:36:22 +0000

@sf

http://hackaday.com/2008/12/01/bus-pirate-firmware-update-v0c-jtag-and-more/

By: Simon F

Simon F — Wed, 24 Jun 2009 05:43:55 +0000

That’s a nice project.
Thanks very much.
I read you have a JTAG svf player planned or in Alpha, can you share that with me too?

Cheers

By: Ian Lesnet

Ian Lesnet — Wed, 01 Apr 2009 06:59:58 +0000

@andrew – I checked the latest code, the pull-up functions work as they are supposed to, but that doesn’t mean there’s not a deeper bug.

I also looked at the frequency measurement function. I found an error that affects v1a and later, but it should work fine on V0a.

If you can upgrade to the latest firmware in SVN and verify these problems, I’ll start pulling apart the code to find the culprit.

By: Ian Lesnet

Ian Lesnet — Wed, 01 Apr 2009 05:55:16 +0000

@andrew – I’m not sure. You might try upgrading to the latest firmware (v0f or v0g-beta).

By: Andrew

Andrew — Wed, 01 Apr 2009 02:33:28 +0000

Hi,
so I built a bP, proper etched board, looks the same as pics in article, except mine has a LED fitted.
It works, so far have tried it with LM75, DS1337, mcp9801, mcp3221, tc1321, mcp23008, 24c16.
but… 2 problems,
when I do this
I2C>p
1. SDA/SCL Pullup off
2. SDA/SCL Pullup on
MODE>2
205 SDA/SCL PULLUP ON …sets RB11 low
I2C>
this is with or without devices attached, if I have a temp 4k7 resistor pullup in place on SDA before doing that command and remove it after, then RB11 is high. ???

secondly, Aux and Freq, it always returns 0 when a F command is issued. yet the logic state toggles ok with A/a. I’ve tried freq’s from 1Hz to 32kHz. ???
the PIC has firmware .v0c
any help please?
AB

By: Manu

Manu — Fri, 20 Mar 2009 17:36:52 +0000

That’s it.
Il remove the .gld and it enters in debug.
Thank you for your help!

By: Ian Lesnet

Ian Lesnet — Fri, 20 Mar 2009 16:52:32 +0000

@manu

The current source is for use with the bootloader.

To use it without, remove the linker file that relocates the start of the program (.gld). I think that should be it. Also, be sure that it is both in debug mode and the release/debug drop down is set to debug.

I’ll divide the source into revisions in a few days.

By: Manu

Manu — Fri, 20 Mar 2009 08:53:23 +0000

Hello,

First of all, congratulations with this great project.
I have to check different i2c components for my job and the bus pirate will be usefull!

I’ve mounted a pcb(v1a) and I programmed the PIC24 with firmware v1a version 0e (without bootloader).
I didn’t test any composant but it responds on hyperterminal, so the hardware should be fine.

Because I’m curious, I made a google svn checkout to play with code.
I compiled it in debug.
However, when I try to use Mplab in debug mode and set a breakpoint in the source code, I have a “unable to enter debug mode error”.
Some useful infos :
- I”m working with pickit2, mplab v8.20a and C30 v3.10 (complete version).
- I also tried with an ICD2 with the same error.
- in base.h, I defined BUSPIRATEV1A

In microchip forum, I’ve read that it may be an oscillator configuration problem.

So my question is :
How do you debug your project?

By: Ian Lesnet

Ian Lesnet — Tue, 10 Mar 2009 19:02:28 +0000

Google's SVN access instructions don't seem to work. We use TortoiseSVN to access the repository. This is the correct URL for anonymous SVN access: http://the-bus-pirate.googlecode.com/svn/trunk/ Note that it doesn't have the trailing junk included in Google's instructions.

By: Ian Lesnet

Ian Lesnet — Fri, 16 Jan 2009 08:11:06 +0000

@mick

The label is wrong. Anything above 7volts, but below ~20volts should work fine.