Hi. I am going to convert mss54 to mss54hp. No h-bridge, just for map sensor really. Is BDM flashing necessary? Or can i flash via obd with msstuner?
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Converting an MSS54/HP into an MSS54HP CSL (H-bridge)
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You need bdm or EEPROM flasher. There is no other way, because with empty flash chips the dme can not boot so no obd is possible.03 TiAG SMG, near to zero options, Electric steeringpump conversion, MK60, karbonius, Flap, CSL management, Self tuned, AEM UEGO, Limited Pole Positions, SPAL Electric Fan, visco&aux Fan delete, shortest possible Z3 rack, style 163, 996 Brakes, PSS10s, Turner Motorsport Camberplates, GC Camberarms, Mufflermod, every bushing solid or Polyurethane, near every M3 Job is done
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Originally posted by davke View PostHi. I am going to convert mss54 to mss54hp. No h-bridge, just for map sensor really. Is BDM flashing necessary? Or can i flash via obd with msstuner?
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One short question, at the moment i try to modify a non HP to HP ecu. I thougt i ordered two AM29F400BB-50SE but today two AM29F400BT-50SE have been delivered. Does this make a difference?
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Yes, the have Bootloader section in the wrong place. you need AM29F400BB03 TiAG SMG, near to zero options, Electric steeringpump conversion, MK60, karbonius, Flap, CSL management, Self tuned, AEM UEGO, Limited Pole Positions, SPAL Electric Fan, visco&aux Fan delete, shortest possible Z3 rack, style 163, 996 Brakes, PSS10s, Turner Motorsport Camberplates, GC Camberarms, Mufflermod, every bushing solid or Polyurethane, near every M3 Job is done
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Originally posted by Schiffi View PostOne short question, at the moment i try to modify a non HP to HP ecu. I thougt i ordered two AM29F400BB-50SE but today two AM29F400BT-50SE have been delivered. Does this make a difference?
B = Boot sector in the bottom
T = Boot sector in the top
I am working on restoring an old DME that I have on hand for my future S54 swap -- this DME has a bad flash IC (I think it's the slave, but I can't recall).
Anyways, I wanted to let you guys know that Arrow Electronics has plenty in stock: https://www.arrow.com/en/products/am...-semiconductor
Always better to buy these things from a distributor.
The only downside of course is that it's not an extended temperature part, but up to 85C should be fine, IMO.
-Ted
Last edited by t3ddftw; 01-18-2022, 08:14 AM.
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How do you split the file in half to flash evenly to master and slave. Is there another software we need that splits a file evenly?
Also I'm wondering if we use the 400BB chips harvested from MS43 DMEs, solder them in place. Maybe it's possible to flash via obd out of the gate since they already have software written to them?
I have a spare mss54 DME I want to convert to HP so I can make a copy of my current HP DME for my turbo car and have a spare back up DME to have on hand. I don't plan on running CSL software on it at all.
If that's the case Im guessing that I need to determine the program and software version of my current HP DME and find the associated OPA file for the program and then convert my BIn file for my tune portion to an ODA as well? Or what would be the best way to go about that?
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Originally posted by Anders93 View PostI used a similar technique. I found it helpful to use copper solder wick to remove as much solder from the pads before applying pressure to "lift" the legs. Then, as you did, use tweezers to apply gentle upward pressure while applying heat to the pad. After wicking, there is so little solder left over that some of the legs lifted even without heat (although I would not recommend doing this as you could easily rip out a pad).
Originally posted by Anders93 View PostIf you have a bevel tip on your soldering iron, you can put some flux paste on the legs, melt a little solder on the tip, and without lifting the iron up, sweep down the row of legs in one motion. The flux paste helps prevent bridging the pins. This is, of course, after soldering the corners to hold the chip in place. This video shows the technique: https://youtu.be/5uiroWBkdFY?t=115
https://www.instructables.com/How-to...-the-easy-way/
Edited: I didn't know the bevel tip in the original post is the same as my "concave tip", and the original video is even better than the one I posted. Sorry.
Last edited by sapote; 01-27-2022, 10:27 PM.
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Originally posted by nextelbuddy View PostHow do you split the file in half to flash evenly to master and slave. Is there another software we need that splits a file evenly?
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