MS driver/megatune something problem?
 

I added this to one of adbradleys recent threads... and realized its probably in need of its own thread.

"Following my own link for uploading...(http://www.diyautotune.com/faq/troub...unications.htm) and the other link for latest 2.25...(http://www.msextra.com/manuals/MS_Ex...nual_Index.htm) and then the 029w link for latest extra code....(http://megasquirt.sourceforge.net/ex...alpha/029w.zip)

I use hyperterminal by the book to upload... use the latest 2.25 and bring the 029w over.... and get an error.

Expected "MSnS-extra format 029q*********" (found in ini file)
Received "S - what???Boot>" (from controller)

Retryed uploading the 029w and seeing if that was the problem.. still wierdness.

Kinda driving me nuts... if i load hyperterminal and hit X... gets me nice lights on stim and MS. I close Hyperterminal... open up Megatune and its showing everything working....
Unpower MS, exit Megatune. Repower MS, open Megatune... NOTHING.

Argh.

try re-flashing the ecu with the .bat file included with the firmware. I've had the best luck using the DOS based flash script.

if that doesn't work try using the boot jumper even if it shouldn't be necessary with the firmware you have installed. If the flash got corrupted then it won't be able to use the no-jumper trick.

I'd definitely start with reflashing the firmware, you could try using download.bat as it is more direct and to the point than hyperterminal is...

Is this on an ECU that's been working properly or one you've just built or?

Just built and just back from Peter for repairs. I finished the rest of the ecu 65+ on the build and did the Miata specific mods from the DIY provided page. Nothing else.

I found with the bootloader in i can get this going with the .bat...

"1. Turn off Megasquirt
.
.
Press any key to continue . . .
2. Install Boot jumper (or short out boot resistor)
.
.
Press any key to continue . . .
3. Turn on Megasquirt
.
.
Press any key to continue . . .
.
This should count up to 1700+ lines
.
src\download.exe -c6 msns-extra.s19
MS Download 1.10

Boot>w Complete
Boot>u - waiting ...
Sending file 1 of 1 - msns-extra.s19
Line 550"(counting up)

It finishes like this
"1. Turn off Megasquirt
.
.
Press any key to continue . . .
2. Install Boot jumper (or short out boot resistor)
.
.
Press any key to continue . . .
3. Turn on Megasquirt
.
.
Press any key to continue . . .
.
This should count up to 1700+ lines
.
src\download.exe -c6 msns-extra.s19
MS Download 1.10

Boot>w Complete
Boot>u - waiting ...
Sending file 1 of 1 - msns-extra.s19
File sent, 1761 lines, 27805 bytes.
Complete
Boot>

Boot>x
Signature: MSnS-ex
Signature: tra format 029q *********
Controller battery voltage: 0.00
It appears that you still have the bootload jumper installed.
If this is not the case, and you have removed the jumper, then
something is wrong and your download probably failed.

If MS doesn't reboot, type "download -help" and check out the -v switch.
Press any key to continue . . ."

At this point... all blinky and working. I can open MS and everything reads normally.

I pull the stim, and power.... then power it back up.... and nothing blinks... and megatune just doesn't read or gives wierd errors.

Thoughts?

Check your setting in codebase and output fonction. Set it for msns distributor and check if works.

The next time you try to flash the extra code, do not install the boot and when it ask if you upgrade from BG original code, type "N", it will load normally.

I would also try to not pull the stim out before you turned the power off.

I've tried to run it as "N" and it just errors.

I'll double check the megatune stuff, but the thing that bothers me is that when I open up Realtime... i get 0 information in there.

sounds like you are getting the program into the memory, but not the flash.

everytime you boot the MS it loads the firmware from the flash memory and loads it to the active memory. this is the reason you can make live tuning adjustments (active memory) but unless you hit "burn to ecu" (flash memory) it will be lost when the ecu reboots.

I don't know how to solve the problem, but I hope this info helps someone with suggestions.

edit* check for continuity between your two jumper points with no jumper installed... you may have a short in the jumper line.

When its jumpered it errors differently then when not, so I believe it isn't a short at the jumper.

The hardest part of this... is I can flash it with hyperterminal... or the .bat... hit X and get lights... leave it on and Megatune can see it and I get live data and stim controls.... Once off... it stays off.

Sigh.

Hurm... just thought of something... when i get data... realtime... Batt should show voltage right?

My battery shows voltage when in realtime mode.

Yah, I remember voltage too. I'm using a wall power unit... i tried it with battery and does the same thing.

Hurm.

Maybe MS just dislikes me?

I just tested that power works... I ran off wall power and off 9v... both got same results with hyperterminal and X activating the ecu... then closing hyper and opening megatune... gets me live readings. With realtime up.... everything that should move/work does... except 0.00 under Batt volts.

Thoughts?

I just went through hyperterminal and set reflashed mine with .029w, it fixed my .ini errors i was getting and smoothed out my realtime simulations as well. Everything but RPM is working with the Stim. I used the boot jumper and a 9 volt, worked perfect by the book. I have no idea why yours would be doing that.
Can you hook it up to someone elses computer, might just be a weird thing with your computer?

Interesting... just doing things over and over again and looking for a hiccup.

I just used the .bat and gave a "Y"... it did the turn off/put in boot jumper/power up.... i have no jumper in... went through that menu and its loading the program to it.... Something has to be off somewhere... Bah.

This is what makes me nervous about the squirt... (and why I haven't ordered it yet) keep plugging away at it!

not everyone has these troubles... and those who do can take solice in the fact they saved hundreds if not thousands of dollars over a different ecu choice.

Agreed, I'm still excited for my MS... I just need to get over these hurdles.

I wish I could help, this is totally out of my abilities. Have you asked at msextra.com?

Have you tried Eric's downloader program? Not sure if this will fix things, but it's often the most reliable of the downloaders. Although marked as an MS-II downloader, it works for MSnS-E too.