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Hi,
is it possible to change the jtag clock speed during debugging?
For example, the AT91SAM9263 controller starts with an 32kHz crystal (therefore the max. jtag clock at the beginning is 5kHz), but if the PLL and the 18.432 MHz crystal are running (stable), the processor will provide a jtag clock of about 1 MHz. At the moment, I'm not able to run a programm in the internal / external RAM / SDRAM with a higher jtag clock than 5kHz. Also programming the external flash device, is only possible with 5kHz.
It would be perfect if someone knows if there's a way to use this much higher jtag clock during debugging (in the ram).
best regards Bernd
Currently it is not possible to change JTAG clock speed during debugging (will be added in the future).
However you should select RTCK instead and the debugger will dynamically adapt to the highest JTAG clock.
unfortunately, the board (I have bought) has not the option using the RTCK clock. It would be perfect if you could give me a note when this feature will be added.
or is there any other tool, working with keil uvision (download code to external flash device, debugging...) which is able to change the jtag clock?
I'm very happy for any kind of input to get a faster download speed.
Bernd