謝謝版主的指導,我試了結果是將JP2和JP11各自都短路就可以正常了,但是C8051F32X DEVELOPMENT KIT US E R ’S GU ID E卻寫只能單一個,那我這麼做會不會有什麼問題呢?
6.5. USB Self-powered Configuration (J2, J11)
The C8051F320 target board can be configured as a self-powered USB device to take power from the USB cable instead of the ac/dc adapter connected at P1. To configure the target boards as a self-powered USB device, remove the shorting block from J2 and install on J11. (A shorting block should only be installed on J2 or J11, never
both at the same time.) Install shorting blocks in the following manner:
J2(ON) & J11(OFF) →Target Board is powered from the ac/dc Adapter at P1.
J2(OFF) & J11(ON) →Target Board is powered from the USB connection
[ 本帖最後由 ping 於 2009-10-8 13:57 編輯 ]