
Serial Flash Programmer[S550-SFWv3] Operation Manual
8
2.5.
S550-SFWv3 External Appearance
The external appearance of S550-SFWv3 is shown below with descriptions of switches, LEDs, connectors and
accessories.
●
Front View
LED / Switch
Functions
POWER
Lights up when power is supplied to S550-SFWv3.
USB
Lights up when PC and S550-SFWv3 are connected through USB, and
blinks while accessing.
*Stay lighted while updating.
PASS
Lights up when programming to the target finished successfully.
ID ERR
Lights up when “ID Error” occurs while programming to the target.
FAIL
Lights up when an error other than “ID Error” occurs while
programming to the target.
Center
Display
14SEG LED. Displays user program checksum, device information,
and error information.
START Switch
Switches displays on the center display, and start initializing and
programming to the target.
FUNC Switch
Use this switch to switch display on the center display.