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AN4300 Fiches technique(PDF) 31 Page - STMicroelectronics

No de pièce AN4300
Description  Advanced light control and diagnostics using
PDF  40 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4300 Fiches technique(HTML) 31 Page - STMicroelectronics

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AN4300
MCU initialization
39
Figure 25. init DMA_1 function part 3
4.5
ADC module
The dadc_init function initializes ADC module enabling the CTU trigger. It selects the ADC
channels used for the conversion. ADC_0 CH0 is used to convert the VBat and a End of
Conversion interrupt is set on this channel.
EMIOS1_CH2 is used as counter to read Vbat. When this counter elapses, the CTU_CH34
(connected to eMIOS1_CH2) will trigger the ADC_0 CH0 to convert the Vbat.
At the EoC an interrupt will be raised to adapt the Duty Cycle of the PWM signals to the
Vbat.



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