Code Warrior

[grantm]

I'm looking at perhaps getting the Wytec USBDM which already comes with V4.9 firmware installed according to the web page. If I want to use this purely for loading StickOS onto a MCF51JM128EVLK, do I need Code Warrior or can I get away without it? I won't be doing anything other than loading StickOS, so presumably I won't need to compile anything, as StickOS already has the Hex files.

If I decided to make my own USBDM JS16 minimal MC9S08JS16CWJ.(for use with the above processor) instead of buying one, would I need Code Warrior to load the firmware into the USBDM?

Thanks

[pgo]

Dear Grant,

If you install the USBDM software then you would be able to program target micros using the utilities included.  This does not require Codewarrior.

Programming a completely blank JS16 micro (on a USBDM) is possible using the JS16 bootloader included in the USBDM software.

It  would be difficult to build a BDM cheaper than buying the Wytec one I would think?

bye

[grantm]

Thanks for the fast response PGO, especially over the Christmas period. That sounds good that I can use the USBDM software.

Yes the Wytec is very cheap, though postage is likely the killer to get it around the other side of the globe - plus a 3-4 week wait. I already have all the bits handy in through-hole form, except the micro (have an SMD-DIP adaptor to suit) and 74LV125 which can be obtained in DIP, so still tossing it around. I assume I can use 74ACT125 etc. so long as Target is always 5V like MCF51JM128EVLK?

Thanks for sharing your work.

[pgo]

Hi Grant,

You are correct about the 74ACT125 or similar - providing you are using 5V.

bye

[grantm]

Does the BL pin have to be pulled low to initially load program the BDM chip? I'm not quite clear on this.

[pgo]

Hi grant,

For a JS16 chip I presume?

To load the initial software you hold BL low while plugging in the BDM.

To update the firmware this is not necessary.

Please see:

USBDM: BDM Construction and Firmware

bye

[grantm]

Thanks pgo, you've been really helpful, I'll have to RTFM a bit better I think!

Yes a JS16  :smileyhappy: