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STM32L476 Adc Injected

gokhannsahin
Associate II
Posted on December 12, 2017 at 09:10

Hi everyone,

I'm using all ADC modules ADC1, ADC2, and ADC3 in my application. ADC1 has 8 channels so the data is being read through DMA.

Others which are ADC2 and ADC3 have only 4 channels and I want them to be read in Injected mode. However, both of them read zero

data

while reading in Injected mode.

Furthermore, while trying to read the second time I get an error, it says it's busy. Where am I doing wrong?

if(HAL_ADCEx_InjectedStart(&hadc2)!=HAL_OK)

   Error_Handler();

HAL_ADCEx_InjectedPollForConversion(&hadc2,100);

usAdc[0]=HAL_ADCEx_InjectedGetValue(&hadc2,ADC_INJECTED_RANK_1);

usAdc[1]=HAL_ADCEx_InjectedGetValue(&hadc2,ADC_INJECTED_RANK_2);

usAdc[2]=HAL_ADCEx_InjectedGetValue(&hadc2,ADC_INJECTED_RANK_3);

usAdc[3]=HAL_ADCEx_InjectedGetValue(&hadc2,ADC_INJECTED_RANK_4);

#injected-adc #injected-conversion
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