About Ahajr.1

Ahajr.1 · 2021-09-06

Hello,I'm working with STM32F410RB , My question is not related to code but it's architectural. I'm using DMA uart to communicate with another device, i noticed that dma buffer change its content before my code processing the data. So i'm loosing som...

Ahajr.1 · 2021-06-17

Hello,I'm using nucleo board f410rb to communicate with another device via UART, my Baudrate is correctly fixed , i checked with the builder of the device the command i should send , i wrote the following code but the device dosen't respond uint8_t t...

Ahajr.1 · 2021-06-02

Hello , I had started a project with STM32F410RB wish communicate with a keyboard and LCDActually i wrote my program that call SysTick_Handler from stm32f4xx_it.c to interact keyboard and detect if there is a button pressed and wrote caracter on LCD....

Ahajr.1 · 2022-11-22

Thanks for your quick replyIt's not the same application as @RLand.2I do not use solar panel. but harvesting from a current loop 4-20mA to charge a supercap that will power the mcu only when ble is activated.i think in that case i should switch exter...

Ahajr.1 · 2022-11-22

@Peter BENSCH I would like to know if it's possible to perform a software switching from vdd to battery (while knowing that vdd is always present). it's in the case of activating BLE when system is powred from current loop. Also the charging could ...

Ahajr.1 · 2021-06-18

This issue was solved by changing some byte on buffer command.Now i'm able to see my device responding using scope. Using HAL_UART_Receive the read buffer is always empty and the function stuck on :if (UART_WaitOnFlagUntilTimeout(huart, UART_FLAG_RXN...

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Lossless data processing

Failed to communicate with device using Nucleo uart

SysTick_Handler and RTOS

Re: Connecting a battery to STM32F401 to supply power only at night

Re: Connecting a battery to STM32F401 to supply power only at night

Re: Failed to communicate with device using Nucleo uart