USBDM with Tower kit

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USBDM with Tower kit

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Senior Contributor II

Hi pgo,

Is it now possible to flash USBDM image (USBDM_TWR_CFV1_V4.sx) into JM60 osbdm ?

regards,

Emmanuel

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Senior Contributor V

Dear Emmanuel,

The USBDM_TWR_CFV1_V4.sx is intended specifically for a TWR-CFV1 board and only implements the functionality available on that board i.e. the CFV1 interface.  It is not suitable for a general JM60-OSBDM.

I am not aware of any commercially available units implementing the full JM60-OSBDM hardware and have not bothered producing firmware for same.  There are some details that would depend upon exactly how the interface was implemented.

bye

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Senior Contributor II

Dear pgo,

When I'm saying "JM60 osbdm", I was talking about my TWR-MCF51CN and TWR-MCF51JF, I tried to flash the image file with the PE-Micro update utilities, without any success, the program seems to hang, and USB device is not enumerated by windows.

Which tools should I use to flash it ?

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Senior Contributor V

Hi Emmanuel,

The USBDM software is incompatible with the OSBDM bootloader.

It is necessary to use an external HCS08 programmer to re-program the board.  There is a 6-pin JM60 BDM header on the board for this purpose.

You can restore the P&E Software from the images available on their web site if you wish to go back but this will again require an external programmer..

bye

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Senior Contributor II

Thanks, for confirm this, I will try later, and USBDM is really faster than OSBDM

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Senior Contributor V

HI Emmanuel,

I doubt whether there would be much difference in speed with the CFV1 Versions of OSBDM and USBDM but I will be interested to see what your results are.  They would both be limited by the BDM interface speed which is mostly determined by the target rather than the BDM interface.

The big difference is with the Kinetis SWD interface since USBDM takes advantage of the SPI interface whereas I presume OSBDM uses bit-banging?

bye

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Senior Contributor II

pgo,

In fact, speed transfer should be the same, but gdi interface seems to have better responsiveness than OSBDm, it's just a question of feeling.

And of course, you can benefit USBDM fllashing tools

Salut

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