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IWDG_Enable() bug #33

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IWDG_Enable() bug #33

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alfersi
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@alfersi alfersi commented Feb 3, 2024

IWDG_Enable in ch32v00x_iwdg.c of the peripheral library has a bug while checking if the bit LSYRDY of the RSTSCKR register is set by waiting endlessly for it to be set with a condition impossible to meet:

while ((RCC->RSTSCKR)|(0x2)!= SET);

The correct way should be:

while ((RCC->RSTSCKR & RCC_LSIRDY)!= RCC_LSIRDY);

The original condition to check if LSI is Ready (bit LSIRDY set to 1 by hardware in register RSTSCKR) in IWDG_Enable() can never be met, the updated condition works properly and allows for the program to continue execution after calling it
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@blu006
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blu006 commented Mar 27, 2024

I also noticed this bug when the compiler pointed me to it after I turned on -Wall

kholia pushed a commit to kholia/ch32v003 that referenced this pull request Jul 11, 2024
Better way to handle Windows linking to the right libgcc.a
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