P&E BDM-Multilink not able to detect the target power with HCS08 board

[ashushetty]

hi all ,

i am having problem with the P&E BDM-Multilink cable,

when i plug the P&E BDM-Multilink cable to USB port of the CPU the blue LED gets detected and it glows. But when i connect the same to HCS08 board it doesnt get detected with target power ,because the yellow LED will not glow.

i have powered on the target board, then why still problem remains same even i tried with some 20 hCS08 boards.

so inorder to conclude that Multilink has gone bad , i tried the same BDM multilink with HCS12 board , but with it  it works fine and its easily able to download the code into the controller . so now where is the problem with the board or with the P&E cable????????????????

pls let me know on this as soon as possible.

Regards

ashwini

[ThaManJD]

After trying all of the above and you are still convinced there is something wrong with the BDM, consider sending it to PEMicro? for repair?

If that isnt a likely solution and you dont mind voiding warranties in opening the device ...disclaimer disclaimer.... maybe something similar to the following happened to yours?

I once killed my PEMicro BDM when it was connected to an experimental target. I believe my pc and the p/s i was using were on the same earth ground. I happened to accidentally connect target power in reverse. (Vin was diode protected but not V0) Now i had around 12 volts short circuit through the BDM.

So the bdm wouldnt connect anymore. After opening the BDM up i discovered a zener diode designed for either protection or regulation had gone cactus. I cant remember what value it was but i had one similar on hand and replaced it and it has continued to work since then.

John Dowdell

[bigmac]

Hello Ashwini,

Just a thought - I wonder if your problem might be something to do with use of different Vdd levels for each device.  I presume that the S12 may be using 5 volts, but the S08 would likelly be using 3 volts.  Do you need to select for the correct operating voltage?

Regards,

Mac

[peg]

Hi,

The P&E USB Multilink should work with target voltages from 1.8 to 5 volts without any user intervention.

[Alban]

Hello,

I would advise the following post from myself:
access problems to target with USB P&E and MC9S12XDP512

The thing I suspect here could be a wrong pin-out of the S08 BDM board.
For instance, I saw it is very common to put the BDM header upside-down and have to connect the BDM cable on the other side of the PCB.
Other can be to think the view of the connector is up when it was down and therefore mix-up the pin-out.

The orange is just TARGET POWERED.
So I think that as long as you have Vdd on the Vdd pin, you will get the orange... Even if the board and MCU are completely screwed up.

Please check the pinout of the connector and come back to us so we know.

Alban.

[J2MEJediMaster]

Just to cover all possibilities, check your cable type against P&E Micro's cable/product matrix.

If your cable is good to go, next, listen to how the system reacts when you plug the cable into the board. If you're using Windows XP, you're going to get a "ding-dong" tone if XP matches a driver to the board. If you don't get this recognition tone, then the problem is probably rooted in the Windows driver, although why it works for the HCS12 and not the HCS08... You might want to check the P&E Micro website for firmware and driver updates. Their website is here: www.pemirco.com.