Search found 13 matches

by joshp1990
Wed Mar 21, 2012 7:43 pm
Forum: BMS thread
Topic: 25 Cell Multi Slave Board
Replies: 6
Views: 39193

Re: 25 Cell Multi Slave Board

Just finished some testing on the fully assembled boards with the new values, everything seems to be working great, and getting accuracy of inside 20mV, very pleased with that :)
by joshp1990
Tue Dec 13, 2011 7:06 pm
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 1033418

Re: Old BMS Hardware Thread

We'll be able to pop down any time from Thursday onwards, if you have any free time yourself.

when is best for you?
by joshp1990
Tue Dec 13, 2011 2:07 pm
Forum: BMS thread
Topic: Old BMS Software Thread
Replies: 600
Views: 1007688

Re: Old BMS Software Thread

Just re-programmed the chip, and the problem still persists.... here is a link to a longer video of what is going on http://www.youtube.com/user/danmachen#p/a/u/0/HLhpg2OPCM8" onclick="window.open(this.href);return false; just for a test we put in an old version of the PICAXE chip into the board, an...
by joshp1990
Mon Dec 12, 2011 7:29 pm
Forum: BMS thread
Topic: Old BMS Software Thread
Replies: 600
Views: 1007688

Re: Old BMS Software Thread

This is what the screen looks like from start up, we have also tried using the buttons to go to the sub-menu but the system is unresponsive. Not really sure the cause of this problem http://www.youtube.com/watch?v=UWWCl9gNmfc&feature=channel_video_title" onclick="window.open(this.href);return fa...
by joshp1990
Sat Dec 10, 2011 10:08 am
Forum: BMS thread
Topic: Old BMS Software Thread
Replies: 600
Views: 1007688

Re: Old BMS Software Thread

This is the current code we are using for testing, I made sure to go into PIC16f886 config file to prevent the "overwriting previous address contents" error The forum is not letting me upload a .txt file, but here is the full file name is you still have it on your computer MASTER_V27_09021...
by joshp1990
Fri Dec 09, 2011 6:33 pm
Forum: BMS thread
Topic: Old BMS Software Thread
Replies: 600
Views: 1007688

Re: Old BMS Software Thread

The version we are first testing on the hardware is v27 of the master code, unmodified. We thought it would be wise to get that up and running before we load the modified code we are working on. Just so we can reduce any cause for error. The eeprom I was referring to was I2CREAD Scdeeprom,Sckeeprom,...
by joshp1990
Fri Dec 09, 2011 2:40 pm
Forum: BMS thread
Topic: Old BMS Software Thread
Replies: 600
Views: 1007688

Re: Old BMS Software Thread

Thank you for all for your help so far, we've just finished getting out communication with the chip sorted and have successfully loaded our hex files onto the chip. However, some problem in the way it is being loaded is posting random characters to the screen. (seen below)... I'm sure I might have r...
by joshp1990
Fri Dec 09, 2011 2:15 pm
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 1033418

Re: Old BMS Hardware Thread

All is well. We were using the board you gave us to test with. The problem came from putting the EEPROM in the wrong way after we loaded our new program onto the chip to test if it was working. :oops: The PIC16F886 got damaged so we have replaced it and all seems to be well again. We were trying to ...
by joshp1990
Thu Dec 08, 2011 5:44 pm
Forum: BMS thread
Topic: Old BMS Hardware Thread
Replies: 613
Views: 1033418

Re: Old BMS Hardware Thread

Hi, I've been having problems with the power supply to the master board. After switching on the 12V supply voltage there was no activity on the board. Also the L7805ABV voltage regulator got extremely hot. when putting a voltmeter across the terminals the output voltage started at 3V, and continued ...
by joshp1990
Tue Dec 06, 2011 1:03 pm
Forum: BMS thread
Topic: Old BMS Software Thread
Replies: 600
Views: 1007688

Re: Old BMS Software Thread

we think we may have found the problem... obviously v27 works for you as it is, so it looks like the error could come from the version of MPASM that we are using, either they have changed some of the syntax or the newer versions contain bugs. the one we have installed is MPASM 5.42. There are a few ...

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