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MS2 upgrade help needed
MakeEverything - 8/3/10 at 10:59 PM

I bought an MS2 upgrade board for my MS1 V2.2 and have followed the megamanual instructions but cant seem to get the downloader to speak to the unit. Ive changed the chip back over, and it works ok with that, but not the MS2 chip. Am i missing something?

MakeEverything - 8/3/10 at 11:02 PM

I get this on the MS2 board;

Opened comm port 9 at 9600.
Reading signature:
No signature available, possibly could not connect properly.

and this on the MS1 chip;

MegaSquirt Download 2.00

Opened comm port 9 at 9600.
Reading signature:
Signature: "Bowling & Grippo v. 2.xxx or 3.000" plus all the lights light up as they should??

ashg - 8/3/10 at 11:05 PM

the baud rate has been upped for the ms2

needs to be set at 115200 to get it to talk

[Edited on 8/3/10 by ashg]

MakeEverything - 8/3/10 at 11:07 PM

quote:
Originally posted by ashg
the baud rate has been upped for the ms2


Ive tried the higher rate, but it still wont talk. Im wondering if ive got a nackered board?

I can now get MS1 to work in MegaTune, but the whole idea of getting the MS2 upgrade was to manage ignition as well.

ashg - 8/3/10 at 11:09 PM

i think there is a jumper wire you need to remove also. think flack had the same problem from memory.

brianthemagical - 8/3/10 at 11:14 PM

Have you tried port checker? Handy incase some of the settings or ports are wrong.

MakeEverything - 8/3/10 at 11:15 PM

quote:
Originally posted by brianthemagical
Have you tried port checker? Handy incase some of the settings or ports are wrong.


Yes, it sees my usual Port 9 (which MS1 connects thru) and says "No Connection Made".

MakeEverything - 8/3/10 at 11:39 PM

I think ive found the answer BELOW the step for installing the code??

"This is the one non-plug-n-play setup between the 68HC908GP32 processor (i.e., the MegaSquirt® processor) and the MegaSquirt-II board. The problem is that the MegaSquirt-II needs the +12V, but there is nothing like this running to the DIP40 socket for the 68HC908GP32 (for obvious reasons: 12 Volts would cook the GP32).
This is indeed one of the difficult things if one wants to keep on swapping between the old 68HC908GP32 and the MS-II, in that if you re-install the 68HC908GP32, you MUST:

Remove the +12V jumper, or
Bend pin 16 on the 68HC908GP32 out such that it stands free and does not install in the socket,
Snip the pin 16 of the 68HC908GP32 short (so it can't contact the socket), since it is not being used, or
Use a 40 pin socket and snip pin #16 off the socket. That way you can easily switch between MS-I and MS-II and not have to bend/snip the pin on the actual processor. "

Fairly drastic measures introducing 12V to the MS2 board, but at the moment this is the only other option i have that i can think is causing my comms problem.

ashg - 8/3/10 at 11:42 PM

i knew there was some jumper wire you needed to put in or remove just couldn't remember lol.

MakeEverything - 8/3/10 at 11:45 PM

Just seems strange that this is mentioned AFTER the bootloader part.

flak monkey - 9/3/10 at 07:11 AM

You dont need the 12v jumper unless you want to use the IAC controls!

It looks like its connecting and just reporting that there is no code loaded on the chip. Which is correct for a new chip.

Download the latest version of megatune with the firmware from here:

http://www.msextra.com/doc/ms2extra/files/Megatune_MS2_Extra_Release_V2.1.0_Installer.exe

Install it.

When its done place the boot jumper across the pins on the daughter board (not on the main board!) then connect to PC and power. Go to the megatune folder, inside is a folder called ms2extra_2.0.1_release_firmaware. Open that then use the download firmware bat file to load the firmware to the chip.

When it asks if you are upgrading, say yes and it will ask for the boot jumper to be installed etc. Just follow the onscreen instructions.

David

MakeEverything - 9/3/10 at 11:00 AM

quote:
Originally posted by flak monkey
You dont need the 12v jumper unless you want to use the IAC controls!

It looks like its connecting and just reporting that there is no code loaded on the chip. Which is correct for a new chip.

Download the latest version of megatune with the firmware from here:

http://www.msextra.com/doc/ms2extra/files/Megatune_MS2_Extra_Release_V2.1.0_Installer.exe

Install it.

When its done place the boot jumper across the pins on the daughter board (not on the main board!) then connect to PC and power. Go to the megatune folder, inside is a folder called ms2extra_2.0.1_release_firmaware. Open that then use the download firmware bat file to load the firmware to the chip.

When it asks if you are upgrading, say yes and it will ask for the boot jumper to be installed etc. Just follow the onscreen instructions.

David


Thanks David,

I did all that but it still says it cannot open Comport 9....

MakeEverything - 9/3/10 at 11:11 AM

...... I suppose actually connecting it to the laptop helps......

Working now. Thanks David. Youre a Legend!

MakeEverything - 9/3/10 at 11:13 AM

HAPPY BUNNY!!!

Thanks again David.

Amazes me how much knowledge is on this forum sometimes, even for the slightest thing!

flak monkey - 9/3/10 at 11:22 AM

Sorted, glad to help