9.1 Reset Problem on the SAM-ICE V5.1
In certain cases, the reset signal generated by the AT91 target may be inoperative due to the fact that the SAM-ICE reset output (JTAG connector pin 15) is a push-pull stage with a 100Ω serial resistor.
Workaround
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Replace R19 by a Schottky diode with the same resistor footprint (e.g. BAT54J)
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Remove the resistor
This problem has been resolved in SAM-ICE V5.2.