2016 Microchip Technology Inc.
DS50002547A-page 43
RN4870/71 PICtail™/PICtail PLUS
DAUGHTER BOARD USER’S GUIDE
Appendix A. Updating PICtail Firmware
A.1
OVERVIEW
Firmware for the RN4870/71 PICtail can be updated using a PC Tool
isupdate.exe
over the USB port. The latest RN4870/71 firmware images and the
isupdate.exe
tool are available from the product web page at
To update the firmware on the RN4870 PICtail, perform the following steps:
1. Download the firmware zip file from the product web page and extract the con-
tents. The zip file contains the
isupdate.exe
utility and a folder including the
firmware images.
2. Connect the PICtail to the host PC using the micro USB cable.
3. Verify that SW7 is set to ON position.
4. Press SW5
Reset
button and verify that LED1 is showing a non-flashing blue that
indicates the RN487x module is in programming mode.
5. Launch the
isupdate.exe
application as shown in:
• Select the COM port used by the PICtail board
• Verify that other settings (baud, memory type, and address) are set as
shown in
FIGURE A-1:
ISUPDATE.EXE FIRMWARE UPDATE UTILITY
