Topic : RLink not communicating with STM32F103

Forum : ARM

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December 10, 2008 - 9:32am
Guest

By ticking JTAG under Protocol or ticking Restore Default under Option Bytes action I get
the following measage 25 times:
Wrong parameters: Option Bytes value to program is not valid.

The RST (pin 15 on the JTAG connector) and TRST (pin 3 on the JTAG connector) signals are not in contact with each other.

When trying to connect to the STM32F103VBT6 via JTAG or SWD I get:
Unable to read device IdCode: SWDIO is always low. Please check target power.

Versions used: Ride 7 IDE 7.14.0001 and RKit-ARM for Ride 7 1.13.0810

With an ocsilloscope connected I can see an negative pulse for about 15mS on the TMS/SWDIO signal about 100mS after the resets pulse high for 18mS (reset on pin 15) and 22mS (RTCK on pin 11) in response to trying to connect to the STM32F103VBT6.

The STM32F103VBT6 has 3.3V on the supply pins.

What could be wrong?
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December 10, 2008 - 11:38am
Raisonance Support Team

Hi,

I will need more information for understanding your problems.

For the 'invalid option bytes':
It looks like a corrupted project or temp file.
Does that happen in RIDE? RFlasher? RFlasher in project mode?
Please try to select 'Program' as 'Option Bytes action', and then to uncheck 'Read-Out protection', and fill all the other fields with 'FF' (delete anything that was there before). Then, select 'Restore Default'. and see if you still have the problem.

For the connection problem, you must first correct the previous problem, as the second one might be a consequence of the first.
If the second problem persists after that, then I will need your board's schematic to help you more, as there are so many potential sources for this kind of issues.

Best Regards,

Vincent