It looks like setting JTAGSEL to high puts AT91SAM7S64 core into a reset state. Is it a valid behavior or I have some problems with my pcb/hardware?
I would like to monitor and manipulate with signals on AT91SAM7S64 pins to do some board testing using a boundary-scan software. So I set JTAGSEL high to select JTAG boundary-scan compliant TAP (instead of ARM ICE TAP). I have a program in ARM flash which do blinking with some leds on the board. Immediately after setting JTAGSEL high leds stop blinking, when I set JTAGSEL back to low, the blinking sequence starts from the very beginning like the program was restarted.
AT91SAM spec says nothing about JTAGSEL and reset connection.