Interfacing bq34110 gas gauge ic with stm32f4xx.
as it requires i2c communication with repeatative restart the sequence, I am unable to get expected responce from IC
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Microcontroller programming technology
Hello. Please tell us how the microcontroller programming process works. The controller can be programmed in two ways, fill the firmware through the bootloader and through the programmer.If in the first case there is microcode on the controller that ...
Resolved! Can't deference memory mapped qspi
I am using memory mapped mode of the QSPI peripheral on an STM32L452. I can see in the memory view at address 0x90000000 the bytes i expect. However, when dereferencing the pointer to that memory all i get is 0xFF's. In the attached photo you can see...
STM32F746G-DISCO problems with the internal I2C on CN7
I have many problems using the CN7 connector (pin SDA/SCL) with external I2C FRAM and I2C DAC chip.There are no problem using the EXT/RF E2P connector (pin EXT_SDA/EXT_SCL).Why ?
Create an i2c connection with Raspberry Pi.
Hi everyone. I'm a novice so have patience with me. I have a stm32f103c8 (blue phill) card connected to 8 HC-SR04 ultrasonic sensors. I use the STM32Cube IDE. I already have the program ready to read the distances in all the ultrasonic sensors. Now I...
Fast correlation slower than regular?
Arm_correlate_fast_q31 takes almost twice as much time as arm_correlate_q31.Am i missing something? I measured the calculating time for arm_correlate_q31 for various block sizes and then simply inserted the "fast_" in the function call and it takes a...
Hardware bug STM32F11 in Timer DMA mode (PWM Generation)
I wanted to generate PWM Waveforms with nucleo F411and found a severe bug in the hardware. Maybe it is described in the errata sheet, but I found nothing.bug:DMA is dependent on data send on DMA stream. Sometimes DMA transfer is not done. (DMA circul...
Resolved! How to receive stream through SPI using DMA ?
Hi, I am using an STM32F407VGx MCU and I am trying to receive data from SPI1 using DMA.STM32CubeIDE generated code for the SPI1 is the following:void MX_SPI1_Init(void) { LL_SPI_InitTypeDef SPI_InitStruct = {0}; LL_GPIO_InitTypeDef GPIO_InitStr...
STM32 NUCLEO-F746ZG HSE on-board oscillator from X3 crystal
HiI use STM32 NUCLEO-F746ZG development board for my project. I split the ST-LINK and target STM32 part (Cut PCB). I tried to use HSE on-board oscillator from X3 crystal. I soldered the NX3225GD-8.000MEXS00ACG04874 8-MHz crystal oscillator and two 4....
