STM32 MCUs Products

Bug in HAL driver for STM32L432 RTC wakeup

The RTC wakeup interrupt uses EXTI-20. Unfortunately the HAL drivers do not properly enable the interrupt. AddingEXTI->IMR1|=(1<<20);after HAL_RTCEx_SetWakeUpTimer_IT fixes the issue

HAL raises NAK error interrupt at the end of the I2C Slave receiving while it finished correctly.

HI I have problem during the programming with HAL_I2C_Slave_Receive_IT(). At the end of the receiving without error, the HAL calls HAL_I2C_ErrorCallback(), instead of HAL_I2C_SlaveRxCpltCallback(). The error status is AF ( NAK received ). On the othe...

Event Update Interrupt Call delayed

FolksI have set TIM2 in center-aligned PWM mode as well as a timebase ISR in which I just toggle the LED (for inspection and better understanding of the operation, otherwise to be replaced by an ADC activation, etc.). Thus, each edge of the LED (pin)...

how can use same pin as MISO and GPIO interrupt simultaneously in STM32L073

I want to use same pin for SPI MISO and GPIO Interrupt.When I need to take data from SPI BUS then I want touse it as SPI MISO else want to use as GPIO Interrupt. How can I use same pin for both functions?

STM32 Motor Control Example

#error "Define according the used Cortex core ARM_MATH_CM7, ARM_MATH_CM4, ARM_MATH_CM3, ARM_MATH_CM0PLUS or ARM_MATH_CM0"I was using below boards and generated the source code by MX. But above error doesn't understand me. Target: STM32F302R8TxExtensi...

Resolved! System clock switching

My STMF103 user interface processor needs two modes of operation. One needs to be as fast as possible updating the TFT or TX/RX data, and the other can be slower when it is just monitoring keys and switches. To save power I was thus thinking of us...

SPI not working with STM32L476VG Discovery Board?

We are using the STM32L476VG Discovery Board and are trying to use the SPI 1 interface. I generated the code through CubeMX with pins PA5, PE13, PE14, PE15. After the code was generated I tried placing this example code into the while loop: HAL_G...

Resolved! SWO frequency?

In my debugger settings I got there is some SWO frequency difference means before 2 or 3 days its frequency value is 10Mhz but now it is only 2Mhz and from last days I have getting some errors. So plz tell me that such errors are coming due to this ...

Resolved! What is the latest STM32F103RBT6 MCU revision available?

Hi everyone,I recently found myself having spent a lot of time working to get I2C to work on the STM32F103RBT6 (the problem: I2C begins life in the BUSY state).This is apparently due to an ADC noise problem, as described in this errata (p. 26):https:...

STM32F407VG: Need help to use Flash file system (fatfs) on SPI based NAND Flash

Hello, STM32F407vg. I am looking for some help in using a flash file system (faftfs) on SPI based NAND Flash. Are there any examples or demonstrations that I can look for to start with?

STM32 MCUs Products

Forum Posts

Bug in HAL driver for STM32L432 RTC wakeup

HAL raises NAK error interrupt at the end of the I2C Slave receiving while it finished correctly.

Event Update Interrupt Call delayed

how can use same pin as MISO and GPIO interrupt simultaneously in STM32L073

STM32 Motor Control Example

Resolved! System clock switching

SPI not working with STM32L476VG Discovery Board?

Resolved! SWO frequency?

Resolved! What is the latest STM32F103RBT6 MCU revision available?

STM32F407VG: Need help to use Flash file system (fatfs) on SPI based NAND Flash

STM32H723 SWDv2 multidrop

Migrating from Quad SPI STM32H750 to Octo SPI STM3...

Using SysTick Timer in Stop Mode 2 on STM32U5

STM32U5A9 USB MSC

Greenhouse Temperature Controller - STM32H750BDK

Precise SPI Timing with Timer and DMA on H7