STM32 MCUs Embedded software

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Resolved! Where to read length of sleep time on RTC WUT

We are using the STM32L071RB, currently have the firmware set to go to sleep (stop mode) and wake up after ~5 minutes with the RTC WUT (see section 22.4.6 and A13.3 in RM0377). This works great, however this timer isn't the only wakeup source. If the...

LWill.4 by Associate II
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Why would FLASH_FLAG_PGPERR and FLASH_FLAG_PGSERR be set after a successful flash write, and at power-up before any flash write operations?

I've written a flash-based bootloader for the STM32F4 using the latest STM32CubeMX tool and its HAL libraries. I've avoided all the usual pitfalls (it's not my first bootloader), and my code works reliably. I'm not erasing my bootloader segment, writ...

SHers by Associate III
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  • 12 replies
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Resolved! HAL issue with int8_t instead of uint8_t

Hello ! I've been working on with LIS3MDL a magnetometer from STM, but there was one problem because reading X,Y,Z it was showing good values but sometimes instead of value it just spitted 0, for example X = 0.14, Y = 0.30, Z = 0.14 and sometimes it ...

Xenon02 by Senior
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Resolved! STM32F4 UART NOT WORKING CORRECTLY

In the code I have written here, I am trying to send data from UART4 within the main function and simultaneously receive data through interrupts if data arrives. However, the data transmission part works for a very short time and then stops, and the ...