2021 Microchip Technology Inc. DS00003118C-Page 77
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APPENDIX L: DFU- OVER-THE-AIR
UPGRADE
PROCEDURE
BM83 firmware Over the Air (OTA) upgrade through
MBA Android app is discussed in this section. iOS MBA
app can also be used and it has similar steps. OTA
DFU is supported in both embedded and host mode.
L.1 Rehexing Upgradeable OTA Image
• Here are the steps for rehexings
- Start isUpdate tool
- Select 8051, dsp and config settings files as
shown in Figure 84
- Click on Rehex
-Select “BM83 Secured Full Image for OTA
DFU”
- Leave Key unchanged
- Give Output File name
- Click on apply as shown in Figure 85
Note: It is recommended that Key be the same as
used in Config Settings.
FIGURE 84: OPENING .HEX FILE