Comments on: Bus Pirate: Binary bitbang mode http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/ A new open source hardware project every month Thu, 18 Mar 2010 08:01:08 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Ian http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/#comment-298 Ian Sat, 16 Jan 2010 08:15:37 +0000 http://dangerousprototypes.com/?p=1511#comment-298 @W1N9Zr0 - Thank you, you are absolutely correct. I updated the post. The relevant code is located here: http://code.google.com/p/the-bus-pirate/source/browse/trunk/source/binIO.c#227 @W1N9Zr0 – Thank you, you are absolutely correct. I updated the post. The relevant code is located here:
http://code.google.com/p/the-bus-pirate/source/browse/trunk/source/binIO.c#227

]]> By: W1N9Zr0 http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/#comment-297 W1N9Zr0 Sat, 16 Jan 2010 03:05:02 +0000 http://dangerousprototypes.com/?p=1511#comment-297 My v2go running 3.6 has a different order of the input/direction bits: 1|POWER|PULLUP|AUX|MOSI|CLK|MISO|CS Is the order in the post wrong? My v2go running 3.6 has a different order of the input/direction bits:
1|POWER|PULLUP|AUX|MOSI|CLK|MISO|CS
Is the order in the post wrong?

]]> By: Ian http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/#comment-296 Ian Wed, 21 Oct 2009 13:17:36 +0000 http://dangerousprototypes.com/?p=1511#comment-296 The PIC has a 4-byte hardware RX buffer, so you can probably get away with sending a few bytes in a shorter command. You can probably also load it up a bit and them send a new byte every time you get one back to eliminate some lag. The PIC has a 4-byte hardware RX buffer, so you can probably get away with sending a few bytes in a shorter command. You can probably also load it up a bit and them send a new byte every time you get one back to eliminate some lag.

]]> By: James http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/#comment-295 James Wed, 21 Oct 2009 13:16:18 +0000 http://dangerousprototypes.com/?p=1511#comment-295 ...and give your circuit some time to stabilize after switching pull ups or power supplies. …and give your circuit some time to stabilize after switching pull ups or power supplies.

]]> By: James http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/#comment-294 James Wed, 21 Oct 2009 12:45:04 +0000 http://dangerousprototypes.com/?p=1511#comment-294 Tip to anyone using bin mode, when sending command strings read single replies before sending more commands, sending long commands and attempting to read long replies causes the bus pirate to miss part of the command when performing the first part. This is caused by the bus pirate polling the serial line, since it might be busy when the next byte comes in the pic's buffer can overflow and the command is lost. Tip to anyone using bin mode, when sending command strings read single replies before sending more commands, sending long commands and attempting to read long replies causes the bus pirate to miss part of the command when performing the first part. This is caused by the bus pirate polling the serial line, since it might be busy when the next byte comes in the pic’s buffer can overflow and the command is lost.

]]> By: Ian http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/#comment-293 Ian Fri, 09 Oct 2009 11:21:57 +0000 http://dangerousprototypes.com/?p=1511#comment-293 Sounds great! Please share it in the forum, I'll post it up and add it to the manual. Sounds great! Please share it in the forum, I’ll post it up and add it to the manual.

]]> By: Merve http://dangerousprototypes.com/2009/10/09/bus-pirate-raw-bitbang-mode/#comment-292 Merve Fri, 09 Oct 2009 11:10:42 +0000 http://dangerousprototypes.com/?p=1511#comment-292 When I get mine the first thing I'm going to do is implement a simple SWD script for uploading to Arm Cortex-M3's. It took me ages to cobble together all the documentation needed to use that protocol ;) When I get mine the first thing I’m going to do is implement a simple SWD script for uploading to Arm Cortex-M3’s.

It took me ages to cobble together all the documentation needed to use that protocol ;)

]]>