1. The channel and pin of the stm32 ADC are mapped as follows: channel 0 corresponds to PA0, channel 1 corresponds to PA1, channel 2 corresponds to PA2, channel 3 corresponds to PA3, and so on. PA0This pin, the default option has ADC123_IN0, which means that when PA0 is used as the ADC acquisition pin, channel 0 of the ADC3 module can be used.
2, channel 0 corresponds to PA0, channel 1 corresponds to PA1, channel 2 corresponds to PA2, channel 3 corresponds to PA3, and so on. When using STM32's ADC multi-channel sampling raid, it is necessary to configure the corresponding conversion sequence and sampling time for each channel used. The parameter rank is the sampling order of the channel to channel.
3. Configure the ADC module. First, open the ADC moduleBlock, and set the appropriate clock enable, sampling time, mode, resolution and other parameters, as well as set the input channel and trigger source.
4, ADC channel 0~16 has a fixed IO port, not any mouth can be ah.
5, the pin function of stm32 is as follows: GPIO pin, ADC input pin. GPIO pins: The GPIO pins in the STM32 are mainly used for input and output digital signals and can be programmed to control the pin state. ADC input pins: Used to connect analog input signals, such as temperature, light intensity, etc., to convert them into digital signals.TIM2CH1 pin multiplexing of 2'>STM32 How to solve TIM2 with STM32
1. On the far left are the 4 channels of TIM2. The second column shows that before remapping, the four channel pins of TIM2 are PA0 PA1 PA2 PA3. There are two kinds of partial reimages. The image above can be seen.
2, you can also map the pin of this peripheral to other pins by setting the remapping register.
3. In the Timer.c file, we first configure the clock source of TIM2, initiallyInitialize GPIO, set count mode and period, then start timer and configure interrupt.
When using STM32's ADC multi-channel sampling raid, you need to configure the corresponding conversion sequence and sampling time for each channel used. The parameter rank is the sampling order of the channel to channel. For example, if the rank of channel 10 is set to 1, it means that the first channel sampled in the ADC is ADC10.
suggests running the simplest program,Like the blinking of LED lights. In addition, the LED light is in PB3 and PB4, these two pins are also the pins of JTAG, and the system is powered on by default using JTAG, that is, if the owner wants to make PBPB4 as an ordinary IO port pin, the JTAG needs to be closed at the beginning of the program.
is generally two pins: TRIG, ECHO. Ultrasound is divided into two kinds, one is driven by oneself (draw the ultrasonic part of the circuit), and the other is driven by a third party. The self-driven TRIG pin is initialized as output, and the ECHO is initialized as input.
The channel and pin of thestm32 ADC correspond as follows: channel 0 corresponds to PA0, channel 1 corresponds to PA1, channel 2 corresponds to PA2, channel 3 corresponds to PA3, and so on. The PA0 pin, the default option has ADC123_IN0, which means that when PA0 is used as the ADC acquisition pin, channel 0 of the ADC3 module can be used.
The default input signal range is 0 to 5V, and the upper limit can be adjusted using AREF. In addition, some pins have a specific function TWI interface (SDA A4 and SCL A5)How does it correspond? '> How do the channels and pins of the adc in stm32 correspond? The channel corresponding pins of the
stm32ADC are as follows: channel 0 corresponds to PA0, channel 1 corresponds to PA1, channel 2 corresponds to PA2, channel 3 corresponds to PA3, and so on. The default options include foot for PA0, ADC123_IN0, which means that channel0 of the ADC1, 2,3 modules can be used when PA0 is performing ADC acquisition pins.
Channel 0 corresponds to PA0, channel 1 corresponds to PA1, channel 2 corresponds to PA2, channel 3 corresponds to PA3, and so on. The default options include foot for PA0, ADC123_IN0, which means that channel0 of the ADC1, 2,3 modules can be used when PA0 is performing ADC acquisition pins.
Configuring the ADC module First, you need to open the ADC module and set the appropriate clock enable, sampling time, mode, resolution and other parameters, as well as set the input channel and trigger source.
Trigger control is key to ADC operation and supports timer, GPIO pin and software trigger, only via registerSet to achieve. In terms of data alignment, 12-bit ADCs require 16-bit registers, which are usually right-aligned, but can also be adjusted to improve accuracy.
Therule is sequential, and the injection channel is similar to an interrupt. When the rule is executed, a channel is injected.
1, XTALXTAL2 pin. These pins belong to the external clock pins. The former is the input of the on-chip oscillation circuit, and the latter is the output of the on-chip oscillation circuit. RST citationLegs.
2, stm32 pin functions are as follows: GPIO pin, ADC input pin. GPIO pins: The GPIO pins in the STM32 are mainly used for input and output digital signals and can be programmed to control the pin state. ADC input pins: Used to connect analog input signals, such as temperature, light intensity, etc., to convert them into digital signals.
3, it is recommended to run a simple program, such as the flashing of LED lights. In addition, LED lights are in PB3 and PB4, these two pins are also JTAG pins, and the system is powered on by defaultJTAG, that is, if the owner wants to use PBPB4 as an ordinary IO port pin, the JTAG needs to be closed at the beginning of the program.
4, power... Take the STM32F103C8T6 model for example, there are a total of 5 positive power terminals and 4 ground pins, respectively, to supply power to the internal unused modules. VDD: is the power supply voltage of the MCU. VDDA: There is A A after VDD, A=Analog, indicating the meaning of analog, that is, the working voltage of the simulator inside the chip.
5, the default input signal range is 0 to 5V, you can passAREF Adjusts the upper limit of the input. In addition, some pins have a specific function TWI interface (SDA A4 and SCL A5) : Support communication interface (compatible with I2C bus). AREF: The reference voltage of the analog input signal. Reset: Reset the MCU chip when the signal is low.
1, channel 0 corresponds to PA0, channel 1 corresponds to PA1, channel 2 corresponds to PA2, channel 3 corresponds to PA3, and so onAnd so on. The default options include foot for PA0, ADC123_IN0, which means that channel0 of the ADC1, 2,3 modules can be used when PA0 is performing ADC acquisition pins.
2, power... Take the STM32F103C8T6 model for example, there are a total of 5 positive power terminals and 4 ground pins, respectively, to supply power to the internal unused modules. VDD: is the power supply voltage of the MCU. VDDA: There is A A after VDD, A=Analog, indicating the meaning of analog, that is, the working voltage of the simulator inside the chip.
3, STM32F103C8T6 is widely used in electronic devices, processors with complex control and algorithms, such as industrial control systems, robots and motor control. Its main functions include analog to digital conversion (ADC), timer and interrupt controller (TIM), Serial communication interface (USART) and other functions.
4, the chip power supply part, but the chip pin more, some people draw into a discrete form, the result is the same.