Topic : RLink target failure

Forum : ARM

Original Post
Post Information Post
January 29, 2010 - 3:55pm
Guest

Hi everyone,

I am trying to connect a RLInk on a STM3210E evaluation board. I put the power on this board and I connect thr RLink into the JTag connector. I use ride 7. I click on the option dialog box of RLink section and when I click on the "Connect to target button" I have the following error message:
Target power failure: Measured 0.5000000V

I have checked all jumpers and I don't see something wrong

Can somebody help me?
Replies
Post Information Post
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February 2, 2010 - 11:45am
Guest

Hi

I do not see anything else which is needed to be done to make it work.
At this point it seems that your Software and the RLink are working.
What is need to be checked is RLink Adapter and the board.

For the RLink adapter you can simply check pinout referring to this post:
http://raisonance-forum.xsalto.com/viewtopic.php?id=2449

For the board you can check documentation and ST forum.

Please find below a list of trick that sometimes
- Check target selection
- Try to erase target (in case the application which is running disable some possibilities)
- Check you did not connect two RLink

Regards
Matloub
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February 2, 2010 - 2:34pm
Guest

Hi matloub,

I have a question regarding the VCC. The vcc is provided by JTAG or by the board?
In fact, on the board, the two vcc pins (1,2) are connected to the 3.3V
And on the Rlink, the VCC is provided by the probe. Is it OK or is it the problem?

Regards
Sebastien
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February 2, 2010 - 4:21pm
Guest

Hi

The RLink does not provide any power through JTAG signals.
It is the board who supply the VCC on JTAG connector and RLink takes it as an input signal.
You might can check that when you power teh board VCC pin of JTAG connector is powered.

But it is strange, the only thing I do is to connect 5V power on CN17
Then plug RLink into JTAG port and there is nothing I can do to make it fail.

Regards
Matloub
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February 3, 2010 - 10:05am
Guest

Hi matloub,

First, thanks to help me. I am sorry to say that but I checked the RLink and on pin 1 and 2 I have 4,7V. And on the board, as I put the CN17 power, there is also the 3.3V on the pin 1 and 2 of CN9. I think there is a jumper or a driver problem but I don't see what.
The jumper JP13 is put on PSU position.
The ride7 has version 7.26.09.0351
The RKit-ARM for ride7 has version 1.22.09.0254
The rlink serial number is dngSTD000010847
I use the JTAG-SWD adapter

As I select SWD or Jtag protocol on the RLink debug option dialog box, I see the same error.

I think this is a power problem but I don't see why except that I have two differents power supply. One from CN17 and one from JTAG

Regards,
Sebastien
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February 3, 2010 - 3:37pm
Guest

Hi

when you say :

Quote:
I checked the RLink and on pin 1 and 2 I have 4,7V

May I ask you on which connector ahve you done your measure?
Also what had you plug on your RLink?

It seems to me that the JTAG ARM adapter 20 pins connector has 0 V on pin 1, 2 when the RLink
is connected only to the PC and nothing else.

Please note that 24 points RLink pinout has indeed 4.7 V pin output but it is not connected to JTAG connector.

PS I also check that both jumpers JTAG and SWD on adapter are in the same side ( the side of "RLink" written on ADP)

Regards
Matloub
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February 3, 2010 - 6:32pm
Guest

Hi

I have checked the 4,7V on the pin 1 and 2 of the RLink when it was not connect to the board. There was only the JTAG-SWD adapter on the connector and I put these voltages on the adapter but it was not connected on the board.
The RLink was just connected to my PC

Regards,
Sebastien