Caen RFID Hadron R4320C, Technical Information Manual

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HADRON R4320C/R4320CB - Technical Information Manual 15
Fig. 2.5: Hadron R4320C/R4320CB RS232 Connection
FW Recovery/Upgrade
ERASE pin is reserved and shall be used only to perform the microcontroller FW recovery/upgrade
procedure during which it must be forced at high level (3.3V or 5V).
In the following diagram a manual recovery mechanism is shown: in order to perform the R4320C/R4320CB
boot recovery the jumper JP shall be inserted between pin 1 and 2, then R4320C/R4320CB module shall be
switched on for 5s at least. After that the reader shall be switched off and the jumper removed: at the next
switch on the reader will execute the boot recovery program.
For further details please see § Firmware Upgrade page 16.
Fig. 2.6: Hadron R4320C/R4320CB ERASE Pin Connection