STM32F303RCT6 ADC读�?�异常
您好： 我使用STM32F303RBT6的ADC2_IN3时，�?�现�?��?将PC4脚输出高电平时，ADC2_IN3采样的数�?�就会有异常。 譬如ADC2_IN3脚接GND，PC4输出高电平，ADC采样�?�回的值为0x70;而将PC4输出低电平�?�，ADC采样就正常为0了。 请问这是什么问题？谢谢�?
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STM32F103C8T6 and WS2812b
Hi everybody,I'm complete noob and may be a silly question. But is it possible to connect WS2812b to a blue pill? As far as I know WS2812b hav 5V management logic and STM32 here gives 3.3VWhat do you think? I've see someone did it, but no schemas or ...
STM32F103C8T6: I2C Master does not generate START bit
I am programming Blue Pill stm32f103c8t6 mcu, and I am having troubles implementing I2C driver for it. I have tried one I2C example from one site, then tried to implement it on my own by datasheet, yet it does not work - it does not generate START.I ...
STM32F407 2 boards comminicate each other with I2C and master start condition problem
Hello,I have 2 piece stm32f407 board. i try to communicate them with I2C. One of them is master, other one slave. i tied 4.7k pull up resistors.when i feed slave board with usb cablo (debug cablo),master generates "start" condition and slave answers....
How to use the timer to keep our LED on 80% to 10% (linear down) of the time
How to use the timer to keep our LED on 80% to 10% (linear down) of the time by setting a period of 500X, turning it on when the counter is 0 to 400X (0-15 minutes) and turning it off when it is 400X to 500X(5 minutes)?The time and period is a draft ...
Resolved! Can the STM32G4x1 line access external flash memory? Or just the G4x4 line??
My question here is this: Can the STM32G4x1 line access external flash memory (e.g., via QuadSPI)?My confusion is as follows: the following page:https://www.st.com/en/microcontrollers-microprocessors/stm32g4-series.htmlintroduces the STM32G4x1, G4x...
How to setting the TIM of the stm32F103RC for 1usec
I've used stm32F103VC before, so this time I changed my MCU to stm32F103RC. I saw in the datasheet that the specifications of the two chips are almost equal.However, I cannot properly set the timer in stm32F103RC.Here's how I tested it:I make a clock...
Timer drift
I've picked up two discovery f3 board and configured to toggle a pin(in irq timer handler) everytime ARR=17999 on TIM2 with a clock of 36Mhz, derived from HSE crystal on board. If i connect the two pin to an oscilloscope i notice a drift between the ...
Resolved! how to turn-off the STM32F429 Disco kit's lcd ?
Posted on September 07, 2017 at 03:03HI,I'm currently test the STM32F429 Disco kit with some example on step by step.But I nerve that LCD always turn on, So Is there any way to turn off the lcd ? because I'm not ready to test the LCD.
STM32G4 ADC Input channel switch errata for intermixed regular and injected channels
I have an application where I'm using dual ADCs (let's say ADC 1 and 2) on an STM32G474.The desired regular channel sequence is:ADC1: channel 1, stop, channel 1, stopADC2: channel 2, stop, channel 2, stopThe ADC conversion is triggered by a timer. I ...
