Messages

> Try this:
>
> DEVICE(89C51RD2Hxx, -1.000)

Now THIS is something I call a HACK !!!  

JW



Post Edited (06-09-06 01:57)

Alex, you are right, sorry. I haven't really tried, just had a look at it... But Andy recently published a "hack" here: http://www.esacademy.com/software/flashmagic/forum/read.php?f=1&i=2815&t=2815

Other - maybe stupid, too - thing came into my mind, couldn't you simply cut the DTR line in the cable?

Jan Waclawek

This sounds similar than my question here a few days ago. Fortunately, the status quo suited my purpose well; but I investigated this a little bit then, and now I am uncertain: couldn't this be solved somehow by using the commandline version of FM (using the HARDWARE option)?

Jan Waclawek

Can you try to make a very simple program, such as flashing a LED, to detect if the proper file gets "burned" and is running?


Jan Waclawek

Is there any indication that your "keypad" program is actually running?
E.g. some LEDs flashing etc.

Jan Waclawek

> This problem is coming in the the terminal program only. When I insert
> the first chip, it.s working
>
> No communication is taking place, the chip does not responds.

I don't understand. Are you trying to get into the bootloader mode using a terminal emulator?

Please elaborate.

Jan Waclawek

Isn't it stuck in SoftICE mode?
Try this: http://www.esacademy.com/software/flashmagic/forum/read.php?f=1&i=1621&t=1584#reply_1621

Jan Waclawek

Thanks.

Jan Waclawek

Hello all,

Is the behaviour of handshake signals (RTS, DTR) defined in FlashMagic when device is set to P89V51RD2 (i.e. the Advanced options->Hardware config is blank)?
I observed that after clicking on "Start" (and the "Reset device etc." windows comes up), RTS gets asserted, but can I rely on this (e.g. for "parasitic" supply from RS232)?

Thanks,

Jan Waclawek

What is your crystal/oscillator value and which baudrates did you try? What is the serial cable length? Can you also please describe the programming procedure you use?

Jan Waclawek

I'd guess some weird reset circuit, rather.
However, if you are able to get the chip into ISP mode "manually" (getting it to echo the 'U's), you might leave Hyperterminal in that moment andrun FlashMagic to do the rest (or program it in Hyperterminal if you dare to do so).

Jan Waclawek

This discussion reminds me of http://www.esacademy.com/software/flashmagic/forum/read.php?f=1&i=2293&t=2287#reply_2293 ...

Jan Waclawek

A blind guess: do you set the oscillator frequency value in your software?

Jan Waclawek

Andy,

Can't this be made public? Philips published the _sources_ of the bootloader (as a part of one of the appnotes), so I doubt they would object...

Jan Waclawek

What I do with P89V51RD2 (when 'integrity of serial line is fine' :-) ) is:
- run my favorite terminal program (for this purpose it is terminal by Bray)
- set to 9600Baud*, 8N1, no handshake
- click in "transmit" window
- hold down shift-U
- reset P89V51RD2
It should start echoing U. If not, "integrity of serial line" is "not fine", or mcu is not working (incorrect power (including ground!), reset, crystal/oscillator, /EA - all measured directly on pin; less likely chip set to SoftIce mode**, erased bootloader flash or irreversibly damaged).

---
* for exotic and low crystal values, less is required. Search for my "autobaud error" document.
** if this is the case (you already run FlashMagic successfully and set SoftIce mode accidentally, or programmed the chip accidentally as a different type) remedy available, search for my older contributions here