ChibiOS/RT free embedded RTOS / Bugs / #822 Injected ADC with regular conversion

#822 Injected ADC with regular conversion

Milestone: trunk

Status: closed

Owner: Giovanni Di Sirio

Labels: adc (1) injection (1)

Component: HAL

Severity: Medium

Affected Version: 16.1.9

Fixed in Repository: True

Updated: 2018-02-23

Created: 2017-03-28

Creator: jonathan lung

Private: No

Using injected ADC channels in parallel with regular conversions fails in ChibiOS on STM32. This is because
adc_lld_stop_conversion (os/hal/ports/STM32/LLD/ADCv2/hal_adc_lld.c) sets CR2 to 0 and then to ADC_CR2_ADON, resetting the injected channels bits. Proposed resolution: disable SWSTART bit, preserving other bits:
adcp->adc->CR2 &= ~(ADC_CR2_SWSTART);

Discussion

jonathan lung - 2017-03-28

adcp->adc->CR2 &= ~(ADC_CR2_SWSTART | ADC_CR2_DDS | ADC_CR2_DMA);

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Giovanni Di Sirio - 2018-01-16

assigned_to: Giovanni Di Sirio

Affected Version: Trunk --> 16.1.9

Milestone: 16.1.8 --> trunk

Fixed in Repository: False --> True
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Giovanni Di Sirio - 2018-01-16

Fixed in trunk, will go in the 18.x release. Sorry for delay...

Giovanni

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Giovanni Di Sirio - 2018-02-23

status: open --> closed
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Injected ADC with regular conversion

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#822 Injected ADC with regular conversion

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