AT91RM9200: no jtag target found

Hello,

I've got a board with the AT91RM9200, where a u-boot bootloader is installed. Now, I want to erase the external flash (SPI-Flash) where the bootloader is installed to write my programm to the target without a bootloader. But I always get the message "no jtag target found". The COM LED from the ULINK is blue. So I don't know why I have no access to the device.

Tina

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  • could it be that the pin assignment of the jtag adapter is wrong to use it together with the ulink?

    Pin1 = VCC
    Pin2 = VCC
    Pin3 = NTRST
    Pin4 = VCC
    Pin5 = TDI
    Pin6 = VCC
    Pin7 = TMS
    Pin8 = VCC
    Pin9 = TCK
    Pin10 = VCC
    Pin11 = TCK
    Pin12 = VCC
    Pin13 = TDO
    Pin14 = VCC
    Pin15 = NRST
    Pin16 = VCC

    best wishes
    Tina

Reply
  • could it be that the pin assignment of the jtag adapter is wrong to use it together with the ulink?

    Pin1 = VCC
    Pin2 = VCC
    Pin3 = NTRST
    Pin4 = VCC
    Pin5 = TDI
    Pin6 = VCC
    Pin7 = TMS
    Pin8 = VCC
    Pin9 = TCK
    Pin10 = VCC
    Pin11 = TCK
    Pin12 = VCC
    Pin13 = TDO
    Pin14 = VCC
    Pin15 = NRST
    Pin16 = VCC

    best wishes
    Tina

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