Jumpers & Indicators

jumpers usbpwr lower left (usbpwr) should be set if the board is powered by the usb voltage remove if you want to power externally external power can be applied on pin, see connectors docid\ qbnged702f7qbhn9nuyk9 prg this jumper forces the board to skip the bootloader this can always stay on unless a firmware upgrade is needed remove this jumper and follow the instructions on the firmware upgrade docid\ pz3xehfi limmffti kyb page in the usb section to complete this procedure afterward, place the jumper again to skip the bootloader on the next boot rdy/pls this jumper is used to set the output signal that is present on the i/o pin ‘watchdog/sysrdy‘ for more info see outputs docid 8cyqjpsokwuflznwypqzi jp1 this jumper can be used to deactivate the signals on some i/o pins currently, make sure that all jumpers are mounted indicators power p indicates that the power for the processor is available (3 3v) status the status leds indicate the current mode of the controller the status leds are indicated by l1 through l4 indicator color meaning l1 orange board is starting l2 green indicates ‘machine on’ l3 green controller ‘heartbeat’ indicating the board is active l4 red watchdog charge pump, indicates the operation of the watchdog circuitry please note, when in bootloader mode led2 and led3 will toggle to indicate this network the green link led indicates if a network cable is connected the yellow activity led will blink if there is network communication led7 led7 indicates that the sysrdy is active for more information on this signal, read the respective chapter in outputs docid 8cyqjpsokwuflznwypqzi