PIC32: Check for race conditions in SFRs writes

someone42 / hardware-bitcoin-wallet

A minimal Bitcoin wallet intended for embedded devices

BSD 2-Clause "Simplified" License

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PIC32: Check for race conditions in SFRs writes #15

Open someone42 opened 11 years ago

someone42 commented 11 years ago

Writes to SFRs should use the atomic CLR/SET versions to avoid race conditions (especially when clearing interrupt flags). Under some situations (eg. isolated use of peripheral; interrupts disabled), this won't be necessary.