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Monday, May 27, 2019

9S12XDT256 read flash problems
Raivis B. May 27, 2019 at 03:55 AM (03:55 hours)
Staff: Takao Y.

7 comments

Hello!

I want save Flash from microcontroller 9S12XDT256 in computer. I use Codewarrior to read information from microcontroller.

I get information that flash save in such address blocks:
 

block0

page $E0          0x08000 - 0x0BFFF

page $E1          0x18000 - 0x1BFFF

page $E2          0x28000 - 0x2BFFF

page $E3          0x38000 - 0x3BFFF

page $E4          0x48000 - 0x4BFFF

page $E5          0x58000 - 0x5BFFF

page $E6          0x68000 - 0x6BFFF

page $E7          0x78000 - 0x7BFFF

 
block1

page $F8          0x88000 - 0x8BFFF

page $F9          0x98000 - 0x9BFFF

page $FA          0xA8000 - 0xABFFF

page $FB          0xB8000 - 0xBBFFF

page $FC          0xC8000 - 0xCBFFF

page $FD          0xD8000 - 0xDBFFF

page $FE          0xE8000 - 0xEBFFF

page $FF          0xF8000 - 0xFBFFF


In first address 0x08000..0x0BFFF range I can see information, but in others ranges are text "CAFECAFECAFE"

Where can be problem? Maybe flash address ranges are incorrect?

Thanks!

Comment #1 Raivis B. - May 27, 2019 - 03:55 AM (03:55 hours)

Comments

Greetings,

Within CW you should change the PAGE register of the MCU to the page number you want to see. They are all mapped to 0x8000 to 0x0BFFF. 

What is your end goal? Are you trying to save the contents? Or just debugging?


Takao Yamada

Comment #2 Takao Y. (PEmicro Staff) - May 28, 2019 - 10:40 AM (10:40 hours)

```
I want clone microcontrollers.
```
Comment #2.1 Raivis B. - May 28, 2019 - 11:37 AM (11:37 hours)

I have two microcontrollers 9S12XDT256. I want clone flash from one to other. At first I want save flash information to computer and then write this information to other microcontroller.

Comment #3 Raivis B. - May 28, 2019 - 11:34 AM (11:34 hours)

Greetings,

That is going to be quite hard to do within Codewarrior. 

We sell a software called PROG12Z that can be used to read and write the flash. You can easily clone a microcontroller with it:
http://www.pemicro.com/products/product_viewDetails.cfm?product_id=49

I do not think there is a way to dump data from Codewarrior. You will have to ask NXP if that is possible. It needs to be in the correct file format to reprogram a device.


Takao Yamada

Comment #4 Takao Y. (PEmicro Staff) - May 28, 2019 - 02:13 PM (14:13 hours)

I have the cyclone fx and was wondering what the adapter or ICP port this MCU uses. I couldn't find wiring diagram in PROG12Z program.

Thanks,

Ben

Comment #5 Ben T. - August 9, 2019 - 04:39 PM (16:39 hours)

Greetings,

For the HCS12X architecture it uses BDM, a 6-pin interface. Please read more about it in your chip's reference manual. Then you can read the Cyclone's user manual of which port you should use.


Takao Yamada

Comment #5.1 Takao Y. (PEmicro Staff) - August 9, 2019 - 04:54 PM (16:54 hours)

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