Apr 21, 2022
05:51 AM
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Apr 21, 2022
05:51 AM
Could someone explain the firmware upgrade process for 1MW with linux. Does CYW43455 has a bootloader? How to realize OTA through Wi-Fi/BT?
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Apr 21, 2022
06:26 AM
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Apr 21, 2022
06:26 AM
Hi @KOK_4840576,
Wi-Fi
The Wi-Fi has 2 parts
a) driver files i.e .ko files brcmfmac.ko compat.ko, cfg80211.ko brcmutils.ko
b) firmware file i.e cyfmacXXXX.bin found in the path /lib/firmware/cypress/cyfmacXXXX.bin
to update the firmware the host could replace the newer .ko files and the .bin file and rmmod and insmod the ko files, this will update the CYW43455 with the latest firmware
BT
Replace the XXX.hcd file in the path /etc/firmware/xxxxx.hcd
Regards
Vivek
3 Replies