About Khansokhua

Khansokhua · 2025-02-26

Board: STM32F407G-DISC1IDE : StmCubeIDEHello, I am trying to drive ADXL345 accelerometer sensor via SPI. I succeed in receiving the device address (0xE5).However, afterwards, when I tried to read two registers' value consecutively. I always read...

Khansokhua · 2025-02-10

Hello, STM32F407G DISC-1, STMCubeIDE I configured timer3 for generating PWM signal which is 1kHz with %70 duty cycle. I connected its pin(PB4) to input capture channel(PA1). I use default HSI clock 16Mhz. I can measure this PWM signal using logic a...

Khansokhua · 2025-01-23

Greetings, STMCubeIDE STM32F407G-DISC1 I am tryiny to read a stable analog signal from LM35 output pin.However, I usually read zeros.The rest of the data also make no sense.Because the data range between each other is ve...

Khansokhua · 2024-12-31

STM32F407G DISC-1 STMCubeIDEGreetings, I am trying to send data to LCD screen by using I2C Communication Protocol. I succeed in doing it by using HAL library. Also, my current work does work in debug mode.However, I could not make it work by runnin...

Khansokhua · 2024-12-14

Hi, STM407G DISC-1 STMCubeIDEWhen I configure PA6 pin as an input with pull-down. In a floating state, I still measure approximately 2.8V.Do I have to use an external pull-down to make it near to zero?

Khansokhua · 2025-02-10

@waclawek.jan Spot on!! Thank you very much. You are my hero.void timerxConfig(Timer_RegDef_t* selectTimer,uint16_t prescaler, uint32_t autoReload ) { timerxClockEnable(selectTimer); selectTimer->TIMx_PSC = prescaler - 1; selectTimer->TIMx_ARR = ...

Khansokhua · 2025-01-25

I measured 0 V with unconnected PA2.

Khansokhua · 2025-01-24

I measure 40mV output from LM35dz which makes no sense.Also, let's assume, even I received constant 500s values, it would be still equivalent to 400mV according to the math.Obviously, they are all problem.At least, I would worry about the LM35 after ...

Khansokhua · 2025-01-23

@Sarra.S Thank for your reply. I fixed it.hadc1.Init.ContinuousConvMode = DISABLE;The problem persists.

Khansokhua · 2025-01-08

Yes, I already checked them, in HAL structured code, no-pull up, no pull-down is configured.Also, I tried to use external pull-up resistor but in any case TxE is never set.I already shared each file as public.

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Driving ADXL345 via SPI

INPUT CAPTURE - FREQUENCY MEASUREMENT

LM35 HAL ADC

Using I2C Communication Protocol with LCD

GPIO INPUT PA6

Re: INPUT CAPTURE - FREQUENCY MEASUREMENT

Re: LM35 HAL ADC

Re: LM35 HAL ADC

Re: LM35 HAL ADC

Re: Using I2C Communication Protocol with LCD