topic Re: 68000 in ColdFire/68K Microcontrollers and Processors

68000

dragomil — Mon, 30 Jan 2006 15:16:46 GMT

I have acquired some MC68000 64pin microprocessors.

Can anybody help with a test circuit for these, and perhaps any software needed to run the tests ?

Re: 68000

Alban — Mon, 30 Jan 2006 18:24:34 GMT

Hi mimil,

To help you, we need at least the following info:
Which tests are you talking about ?
What is the exact reference of the microprocessor (markings on it) ?

Cheers,
Alban.

Re: 68000

dragomil — Tue, 31 Jan 2006 15:28:16 GMT

Hi Alban,

I have a number of them with different markings. Two of them are 10 MHz types, marked as follows,

MC68000P10

2C91E

OEBV9214

As far as tests are concerned, I just want to make sure they are working ok.

Regards Dragomil

Re: 68000

Alban — Tue, 31 Jan 2006 18:10:55 GMT

Hi,

Looking round, I found these documents.
The MCU is older than I am

The Freescale Hibbert website is quite good to find old datasheet and all.

http://merchant.hibbertco.com/fs11/freescale/an1123.fsl.d.rev0.pdf
http://merchant.hibbertco.com/fs22/pdf-docs/freescale/mc68000.fsl.ac.rev3.pdf
http://merchant.hibbertco.com/fs13/freescale/ar235.fsl.d.rev0.pdf
http://merchant.hibbertco.com/fs13/freescale/ar235.fsl.d.rev0.pdf
http://merchant.hibbertco.com/fs22/pdf-docs/freescale/dce406.fsl.d.rev0.pdf

Semiconductors have a shelf life. If yours were not kept in a moist free bag, it would affect their life span.
Also, I can only recommend to change to a newer generation if you can. Especially with the free sample programme, you don't have to pay !

Cheers,
Alban.

Message Edited by Alban on 01-31-2006 10:11 AM

Re: 68000

dragomil — Tue, 31 Jan 2006 19:53:15 GMT

Okay Alban,

I will have to test them for exposure to silica gell.

Regards dragomil

Re: 68000

Nabla69 — Thu, 02 Feb 2006 17:20:17 GMT

Funny you should talk about these !
A new datasheet is just available
http://www.freescale.com/files/32bit/doc/ref_manual/MC68000UM.pdf
Cheers, A.

Re: 68000

dragomil — Thu, 02 Feb 2006 20:57:43 GMT

MC68HC705 with external EPROM ?

Alban (Moderator) moved this message with a new question to a more appropriate location.

Follow link to see

Message Edited by Alban on 02-02-2006 01:51 PM