XC888 flash problem over CAN BSL, reset mode?

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Hello,
I've developed a new board using SAF XC886 and I'm trying to flash it over CAN, BSL mode.
(PC->USB->EvaBoard->CAN BSL->new developed board SAF xc886, with ATMEL CAN transceiver)
The pinning is at follows:
MBC=0v
TMS=0v
RESET=5v
The new developed board seems to enter Reset Mode, (Watchdog TImer?), the current consumption drops to minimum.
The supply is made through a general 5V. and remains stable to 5V and 2.5V core supply.
Does anybody have any clue why?
Thanks in advance.
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I've made the tryouts on more than one board, and the behavoiur is similar.
I'm doing the CAN flash over XC_800 Fload program...
May the software be the problem?
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Solved. External quartz problem. I've generated with a signal gen a 8Meg 3V 1.5V offset signal to simulate the oscill's answer, and the flashing was succsesfull.
😉
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