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| author | Kevin O'Connor <kevin@koconnor.net> | 2021-12-24 19:27:04 -0500 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2021-12-24 19:27:04 -0500 |
| commit | 247cd753e283e70a9949e76d0ba669d99c0eb144 (patch) | |
| tree | e60fbfea1ef847f10816ee2512b7500090dfcd53 /src | |
| parent | 9f31a35e7530223d56701fd311655de34fa21dd2 (diff) | |
| download | kutter-247cd753e283e70a9949e76d0ba669d99c0eb144.tar.gz kutter-247cd753e283e70a9949e76d0ba669d99c0eb144.tar.xz kutter-247cd753e283e70a9949e76d0ba669d99c0eb144.zip | |
stm32: Fix ADC on stm32f042
It seems the stm32f042 chip needs a small delay during ADC enable.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src')
| -rw-r--r-- | src/stm32/stm32f0_adc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/stm32/stm32f0_adc.c b/src/stm32/stm32f0_adc.c index 951d5bb1..8f27dce7 100644 --- a/src/stm32/stm32f0_adc.c +++ b/src/stm32/stm32f0_adc.c @@ -91,6 +91,7 @@ gpio_adc_setup(uint32_t pin) ; // Enable ADC adc->ISR = ADC_ISR_ADRDY; + adc->ISR; // Dummy read to make sure write is flushed adc->CR = CR_FLAGS | ADC_CR_ADEN; while (!(adc->ISR & ADC_ISR_ADRDY)) ; |