How to read multichannels ADC Value?

Question

I can read ADC value from ADC1_IN1 channel with this code ADCValue = HAL_ADC_GetValue(&hadc1); but ADC1 port (you can see on picture) has many channels. How can I read values from ADC1_IN2 ? How can I describe channel 2 in code ?

what did ST say when you asked them? – old_timer Jan 17 '17 at 18:06 — old_timer, Jan 17 '17 at 18:06
I am not a friend of ST,so I didn't ask them. – coollime Jan 18 '17 at 07:08 — coollime, Jan 18 '17 at 07:08
http://visualgdb.com/tutorials/arm/stm32/adc/ good tutorial – Bence Kaulics Jan 18 '17 at 09:47 — Bence Kaulics, Jan 18 '17 at 09:47

score 2 · Accepted Answer · answered Jan 17 '17 at 18:15

2

You can set ADC Channel by HAL_ADC_ConfigChannel function :

ADC_ChannelConfTypeDef sConfig;
sConfig.Channel = ADC_CHANNEL_2; // ADC Channel
sConfig.Rank = 1; //Rank (1-16) Rank: The rank in the regular group sequencer.
sConfig.SamplingTime = ADC_SAMPLETIME_3CYCLES; //ADC Sampling Times
sConfig.Offset = 0; // Reserved

if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) {
    //Error
}

Description of STM32F4xx HAL drivers

answered Jan 17 '17 at 18:15

HamidReza

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How will be usage of GetValue() Function ? `HAL_ADC_GetValue(&hadc1);` – coollime Jan 18 '17 at 07:11

How to read multichannels ADC Value?

1 Answers1