DocID024597 Rev 5 525/1830
RM0351 Analog-to-digital converters (ADC)
614
18.4.19 Injected channel management
Triggered injection mode
To use triggered injection, the JAUTO bit in the ADC_CFGR register must be cleared.
1. Start the conversion of a group of regular channels either by an external trigger or by
setting the ADSTART bit in the ADC_CR register.
2. If an external injected trigger occurs, or if the JADSTART bit in the ADC_CR register is
set during the conversion of a regular group of channels, the current conversion is
EXT10 TIM1_TRGO2 Internal signal from on-chip timers 1010
EXT11 TIM2_TRGO Internal signal from on-chip timers 1011
EXT12 TIM4_TRGO Internal signal from on-chip timers 1100
EXT13 TIM6_TRGO Internal signal from on-chip timers 1101
EXT14 TIM15_TRGO Internal signal from on-chip timers 1110
EXT15 TIM3_CH4 Internal signal from on-chip timers 1111
Table 107. ADC1, ADC2 and ADC3 - External triggers for regular channels (continued)
Name Source Type EXTSEL[3:0]
Table 108. ADC1, ADC2 and ADC3 - External trigger for injected channels
Name Source Type JEXTSEL[3..0]
JEXT0 TIM1_TRGO Internal signal from on-chip timers 0000
JEXT1 TIM1_CH4 Internal signal from on-chip timers 0001
JEXT2 TIM2_TRGO Internal signal from on-chip timers 0010
JEXT3 TIM2_CH1 Internal signal from on-chip timers 0011
JEXT4 TIM3_CH4 Internal signal from on-chip timers 0100
JEXT5 TIM4_TRGO Internal signal from on-chip timers 0101
JEXT6 EXTI line 15 External pin 0110
JEXT7 TIM8_CH4 Internal signal from on-chip timers 0111
JEXT8 TIM1_TRGO2 Internal signal from on-chip timers 1000
JEXT9 TIM8_TRGO Internal signal from on-chip timers 1001
JEXT10 TIM8_TRGO2 Internal signal from on-chip timers 1010
JEXT11 TIM3_CH3 Internal signal from on-chip timers 1011
JEXT12 TIM3_TRGO Internal signal from on-chip timers 1100
JEXT13 TIM3_CH1 Internal signal from on-chip timers 1101
JEXT14 TIM6_TRGO Internal signal from on-chip timers 1110
JEXT15 TIM15_TRGO Internal signal from on-chip timers 1111
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