8. FLASH UPGRADABILITY
(SL869-V2 and SL869L-V2 only)
Note: The SL869-V2S and SL869L-V2S are ROM-based and therefore are not upgradable.
Please refer to the SL869-V2 EVK User Guide for more detailed information.
The firmware stored in the internal Flash memory of the SL869x-V2 may be upgraded via
the serial port TX/RX pins. In order to update the FW, the following steps should be
performed to re-program the module.
1. Remove all power to the module.
2. Connect serial port USB cable to a PC.
3. Apply main power.
4. Clearing the entire flash memory is strongly recommended prior to programming.
5. Run the software utility to re-flash the module.
6. Upon successful completion of re-flashing, remove main power to the module for
a minimum of 10 seconds.
7. Apply main power to the module.
8. Verify the module has returned to the normal operating state.