M487: Fix crash on WDT reset from power-down #12557
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This is to guarantee SRAM bank2, not initialized yet, isn't used for stack by function preamble code at the very start.
When UART interrupt enabled and WDT reset from power-down mode, in the next cycle, UART interrupt keeps breaking in and cannot block unless via NVIC. To get around it, we deliberately make up a signal of WDT wake-up from power-down mode in the start of boot proces when WDT reset is detected.
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@ccli8, thank you for your changes. |
0xc0170
approved these changes
Mar 3, 2020
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CI started |
Test run: SUCCESSSummary: 7 of 7 test jobs passed |
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Summary of changes
This PR tries to fix issue with WDT reset from power-down mode.
Pull request type
Test results