ST STM32F100 Series Reference Manual page 179

RM0041
Bits 14:12 JEXTSEL[2:0]: External event select for injected group
These bits select the external event used to trigger the start of conversion of an injected
group:
000: Timer 1 TRGO event
001: Timer 1 CC4 event
010: Timer 2 TRGO event
011: Timer 2 CC1 event
100: Timer 3 CC4 event
101: Timer 4 TRGO event
110: EXTI line15
111: JSWSTART
Bit 11 ALIGN: Data alignment
This bit is set and cleared by software. Refer to
0: Right Alignment
1: Left Alignment
Bits 10:9 Reserved, must be kept at reset value.
Bit 8 DMA: Direct memory access mode
This bit is set and cleared by software. Refer to the DMA controller chapter for more details.
0: DMA mode disabled
1: DMA mode enabled
Bits 7:4 Reserved, must be kept at reset value.
Bit 3 RSTCAL: Reset calibration
This bit is set by software and cleared by hardware. It is cleared after the calibration registers
are initialized.
0: Calibration register initialized.
1: Initialize calibration register.
Note: If RSTCAL is set when conversion is ongoing, additional cycles are required to clear the
Bit 2 CAL: A/D Calibration
This bit is set by software to start the calibration. It is reset by hardware after calibration is
complete.
0: Calibration completed
1: Enable calibration
Bit 1 CONT: Continuous conversion
This bit is set and cleared by software. If set conversion takes place continuously till this bit is
reset.
0: Single conversion mode
1: Continuous conversion mode
Bit 0 ADON: A/D converter ON / OFF
This bit is set and cleared by software. If this bit holds a value of zero and a 1 is written to it
then it wakes up the ADC from Power Down state.
Conversion starts when this bit holds a value of 1 and a 1 is written to it. The application
should allow a delay of t
0: Disable ADC conversion/calibration and go to power down mode.
1: Enable ADC and to start conversion
Note: If any other bit in this register apart from ADON is changed at the same time, then
calibration registers.
STAB
conversion is not triggered. This is to prevent triggering an erroneous conversion.
RM0041 Rev 6
Analog-to-digital converter (ADC)
Figure
between power up and start of conversion. Refer to
29.and Figure 30.
Figure 25.
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