ST STM32F102 series

Analog-to-digital converter (ADC) RM0008
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Table 44. External trigger for regular channels for ADC1 and ADC2
Source Type EXTSEL[2:0]
TIM1_CC1 event
Internal signal from on-chip
timers
000
TIM1_CC2 event 001
TIM1_CC3 event 010
TIM2_CC2 event 011
TIM3_TRGO event 100
TIM4_CC4 event 101
EXTI line11/TIM8_TRGO
event
(1)(2)
1. The TIM8_TRGO event exists only in High-density devices.
2. The selection of the external trigger EXTI line11 or TIM8_TRGO event for regular channels is done through
configuration bits ADC1_ETRGREG_REMAP and ADC2_ETRGREG_REMAP for ADC1 and ADC2,
respectively.
External pin/Internal signal from
on-chip timers
110
SWSTART Software control bit 111
Table 45. External trigger for injected channels for ADC1 and ADC2
Source Connection type JEXTSEL[2:0]
TIM1_TRGO event
Internal signal from on-chip
timers
000
TIM1_CC4 event 001
TIM2_TRGO event 010
TIM2_CC1 event 011
TIM3_CC4 event 100
TIM4_TRGO event 101
EXTI line15/TIM8_CC4
event
(1)(2)
1. The TIM8_CC4 event exists only in High-density devices.
2. The selection of the external trigger EXTI line15 or TIM8_CC4 event for injected channels is done through
configuration bits ADC1_ETRGINJ_REMAP and ADC2_ETRGINJ_REMAP for ADC1 and ADC2,
respectively.
External pin/Internal signal from
on-chip timers
110
JSWSTART Software control bit 111