STM32F101xx, STM32F102xx, STM32F103xx, STM32F105xx and ...

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Analog-to-digital converter (ADC) RM0008 Figure 39. Alternate + Regular simultaneous 1st trig ADC1 reg CH0 CH1 CH2 CH0 ADC1 inj CH2 CH3 CH3 CH4 ADC2 reg ADC2 inj CH3 CH5 CH6 CH6 CH7 CH0 CH7 CH8 synchro not lost 2nd trig If a trigger occurs during an injected conversion that has interrupted a regular conversion, it will be ignored. Figure 40 shows the behavior in this case (2nd trig is ignored). Figure 40. Case of trigger occurring during injected conversion 1st trig 3rd trig ADC1 reg CH0 CH1 CH2 ADC1 inj CH0 CH2 CH3 CH3 CH4 CH0 ADC2 reg ADC2 inj CH3 CH5 CH6 CH6 CH7 CH0 CH7 CH8 2nd trig 4th trig 11.9.9 Combined injected simultaneous + interleaved Note: It is possible to interrupt an interleaved conversion with an injected event. In this case the interleaved conversion is interrupted and the injected conversion starts, at the end of the injected sequence the interleaved conversion is resumed. Figure 41 shows the behavior using an example. When the ADC clock prescaler is set to 4, the interleaved mode does not recover with evenly spaced sampling periods: the sampling interval is 8 ADC clock periods followed by 6 ADC clock periods, instead of 7 clock periods followed by 7 clock periods. Figure 41. ADC1 ADC2 Interleaved single channel with injected sequence CH11, CH12 Sampling CH0 CH0 CH0 Conversion CH0 CH0 CH0 Trigger CH11 CH12 CH12 CH11 CH0 CH0 CH0 CH0 216/995 Doc ID 13902 Rev 9
RM0008 Analog-to-digital converter (ADC) 11.10 Temperature sensor The temperature sensor can be used to measure the ambient temperature (T A ) of the device. The temperature sensor is internally connected to the ADCx_IN16 input channel which is used to convert the sensor output voltage into a digital value. The recommended sampling time for the temperature sensor is 17.1 µs. The block diagram of the temperature sensor is shown in Figure 42. When not in use, this sensor can be put in power down mode. Note: The TSVREFE bit must be set to enable both internal channels: ADCx_IN16 (temperature sensor) and ADCx_IN17 (V REFINT ) conversion. The temperature sensor output voltage changes linearly with temperature. The offset of this line varies from chip to chip due to process variation (up to 45 °C from one chip to another). The internal temperature sensor is more suited to applications that detect temperature variations instead of absolute temperatures. If accurate temperature readings are needed, an external temperature sensor part should be used. Figure 42. Temperature sensor and V REFINT channel block diagram TSVREFE control bit TEMPERATURE SENSOR V SENSE ADCx_IN16 INTERNAL POWER BLOCK V REFINT ADC1 ADCx_IN17 converted data Address/data bus Doc ID 13902 Rev 9 217/995
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RM0008 Reference manual STM32F101xx
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RM0008 Contents 4.3.1 Slowing down
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RM0008 Contents 7.3.4 APB2 peripher
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RM0008 Contents 10.1 DMA introducti
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RM0008 Contents 12.3.2 DAC output b
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RM0008 Contents 13.4.6 TIM1&TIM8 ev
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RM0008 Contents 15.4.8 TIM6&TIM7 au
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RM0008 Contents 20 Secure digital i
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RM0008 Contents 21.5.2 Endpoint-spe
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RM0008 Contents 23.5.10 SPI registe
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RM0008 Contents 26.5 USB peripheral
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RM0008 Contents 27.7 Ethernet inter
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RM0008 List of tables List of table
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RM0008 List of tables Table 100. FS
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RM0008 List of tables Table 202. Pa
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RM0008 List of figures Figure 49. D
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RM0008 List of figures preloaded).
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RM0008 List of figures Figure 255.
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RM0008 Documentation conventions 1
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RM0008 Memory and bus architecture
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RM0008 CRC calculation unit 3.3 CRC
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RM0008 Power control (PWR) 4 Power
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RM0008 Power control (PWR) Note: Du
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RM0008 Power control (PWR) 4.3 Low-
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RM0008 Power control (PWR) Table 9.
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RM0008 Power control (PWR) switched
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RM0008 Power control (PWR) Bit 8 DB
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RM0008 Power control (PWR) 4.4.3 PW
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RM0008 Backup registers (BKP) 5.3 B
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RM0008 Backup registers (BKP) Bit 6
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RM0008 Backup registers (BKP) Table
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RM0008 Backup registers (BKP) Table
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RM0008 Basic timers (TIM6&TIM7) 15
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RM0008 Basic timers (TIM6&TIM7) Fig
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RM0008 Basic timers (TIM6&TIM7) 15.
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RM0008 Real-time clock (RTC) 16 Rea
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RM0008 Real-time clock (RTC) Figure
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RM0008 Real-time clock (RTC) 16.3.5
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RM0008 Independent watchdog (IWDG)
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RM0008 Window watchdog (WWDG) Figur
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RM0008 Window watchdog (WWDG) 18.6
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RM0008 Device electronic signature
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RM0008 Debug support (DBG) Figure 3
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RM0008 Revision history 30 Revision
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RM0008 Index ETH_MACMIIDR . . . . .
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RM0008 Please Read Carefully: Infor
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