controller voltage too low to reliably flash

All Megasquirt 1 support questions. See also the Documentation

Moderators: jsmcortina, muythaibxr

controller voltage too low to reliably flash

Postby BMW528e » Wed Jun 20, 2012 12:29 am

MS was working with 029y4 firmware, now I am trying to change it to high-res. I used easytherm to send the high-res firmware but when I run the associated Megatune and try to load an MSQ I get this error message. :(
BMW528e
Helpful MS/Extra'er
 
Posts: 45
Joined: Mon Feb 06, 2012 8:35 pm

Re: controller voltage too low to reliably flash

Postby jsmcortina » Wed Jun 20, 2012 3:48 am

Remove the boot jumper.

James
I can supply, repair or upgrade Megasquirts in UK.

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
jsmcortina
Site Admin
 
Posts: 27450
Joined: Mon May 03, 2004 1:34 am
Location: Birmingham, UK

Re: controller voltage too low to reliably flash

Postby BMW528e » Wed Jun 20, 2012 7:18 am

boot jumper is not installed...
BMW528e
Helpful MS/Extra'er
 
Posts: 45
Joined: Mon Feb 06, 2012 8:35 pm

Re: controller voltage too low to reliably flash

Postby jsmcortina » Wed Jun 20, 2012 7:36 am

Are you using the correct ini file to match the firmware?

James
I can supply, repair or upgrade Megasquirts in UK.

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
jsmcortina
Site Admin
 
Posts: 27450
Joined: Mon May 03, 2004 1:34 am
Location: Birmingham, UK

Re: controller voltage too low to reliably flash

Postby BMW528e » Wed Jun 20, 2012 11:00 pm

The msns-extra.ini says "last edited for version hr_10a and MT2.25 (release)" but the archive contains firmware hr_10g. Not sure if this is correct but I`m assuming it is since it came out of the same archive?

I noticed that with the high-res firmware loaded, in Megatune under the realtime display the battery voltage readout is cycling from min to max and back again multiple times per second.

I tried downloading hr_11d and sticking it in there but megatune spit out a pile of errors with that ini file.
BMW528e
Helpful MS/Extra'er
 
Posts: 45
Joined: Mon Feb 06, 2012 8:35 pm

Re: controller voltage too low to reliably flash

Postby jsmcortina » Thu Jun 21, 2012 1:17 am

BMW528e wrote:I noticed that with the high-res firmware loaded, in Megatune under the realtime display the battery voltage readout is cycling from min to max and back again multiple times per second.

That's certainly going to cause a problem.

James
I can supply, repair or upgrade Megasquirts in UK.

My Success story: viewtopic.php?f=104&t=34277
MSEXTRA documentation at: http://www.msextra.com/doc/index.html
jsmcortina
Site Admin
 
Posts: 27450
Joined: Mon May 03, 2004 1:34 am
Location: Birmingham, UK

Re: controller voltage too low to reliably flash

Postby BMW528e » Mon Jun 25, 2012 3:43 pm

The strange battery voltage reading was caused by the dirty power coming out of the battery charger that I was using as a power supply to test outside of the car. 470uF capacitor fixed that. Doesn`t explain why I couldn`t flash it when it was in the car, which was the original problem.

But it is now flashed with hr_10g, and quite drivable.
BMW528e
Helpful MS/Extra'er
 
Posts: 45
Joined: Mon Feb 06, 2012 8:35 pm

Re: controller voltage too low to reliably flash

Postby SymTech Laboratories » Mon Jun 25, 2012 7:43 pm

BMW528e wrote:Doesn`t explain why I couldn`t flash it when it was in the car, which was the original problem.

You were getting the low voltage warning when you tried to flash the ECU in the car? What was the battery voltage?
SymTech Laboratories, LLC ----- MSQ File Repository: megasquirt.symtechlabs.com
Image
SymTech Laboratories
Super MS/Extra'er
 
Posts: 2188
Joined: Sun Aug 31, 2008 4:02 pm
Location: South Florida, USA

Re: controller voltage too low to reliably flash

Postby BMW528e » Tue Jun 26, 2012 11:07 pm

You were getting the low voltage warning when you tried to flash the ECU in the car? What was the battery voltage?

That`s correct. I don`t remember what the battery voltage was but it was enough to start the engine so I wouldn`t have expected it to be a problem.
BMW528e
Helpful MS/Extra'er
 
Posts: 45
Joined: Mon Feb 06, 2012 8:35 pm


Return to MS1/Extra support

Who is online

Users browsing this forum: Bing [Bot] and 2 guests