Hibernation bricking with CYW43907

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GrCa_1363456
Level 6
Level 6
50 likes received Beta tester First comment on KBA

What could cause bricking issues when using OTA2 and Hibernation on a Murata Type 1GC (CYW43907).

The issue is happening when using OTA2 service with Hibernation. For Hibernation cycle, after a certain amount of time the device is put in hibernate for a few minutes then woke up to check some data then revert back into hibernation and the cycle repeats. At around 50 to 150 hibernation cycles, the module gets bricked. The only way to recover is to flash the module using JTAG. This bricking is happening only when OTA2 daemon is enabled in the code.

To recreate this issue, merge ota2 snippet that comes with WICED SDK 6.2.1 (snip.ota2_example) and hibernation example from Community Post from Oct 2018, "43xxx_wifi Hibernate.c in WICED 6.2.1?" @(https://community.cypress.com/message/176648#176648).

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