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Andrew Leech
a23f69ea68
Replace all |= on ADC CR with mask-and-set using ADC_CR_BITS_PROPERTY_RS from the LL HAL. On ADC V2 the CR command bits are write-1-to-set, so |= can propagate stale bits (e.g. ADSTP left by HAL_ADC_Stop), violating the RM requirement that ADSTART and ADSTP must not be asserted simultaneously. Add recovery logic in adc_config_channel for stuck ADSTART: stop the conversion, disable, and re-enable the ADC before reconfiguring SQR1. Replace unbounded while loops in ADC V2 paths with ADC_WAIT, a busy-wait macro using mp_hal_ticks_ms with a 250ms timeout. Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>