STM32 MCUs Products
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Resolved! STM32U545 permanent RTC wakeup call
Hello,I am new to this cpu and experimenting with RTC wakeup using 32kHz LSE. I am usingthis code for the wakeup: void HAL_RTCEx_WakeUpTimerEventCallback(RTC_HandleTypeDef *hrtc){SystemClock_Config();HAL_ResumeTick();...} // In while(1)HAL_RTCEx_SetW...
Resolved! STM32H5 DMA Source burst length vs HAL_SPI_Receive_DMA `Size` argument.
Hello there!I've been tinkering around with the STM32H5 and recently I've managed to setup the STM32H563 with SPI and DMA.I'm now trying to understand what is the limit of the burst (either source or destination). I'm using the DMA channel 4 (with a...
stm32h725 doesn't work.
Hello, I looked at AN5419 and configured the stm32H725igk6 power supply circuit as shown in the following figure, but the external osc does not work and the st link is not connected to the MCU. Is this product a model that must be configured using S...
STM32U575ZI Configuring ADC1 with GPDMA (without Linked List)
Hi !I'm trying to configure the ADC1 to 7 ranks conversion and a GPDMA1 channel (0) in "Standard Request Mode" to transfer the ADC data into the memory.First, I've configured the ADC without GPDMA channel, and it worked fine (Polling mode, no interru...
Resolved! STM32 FLASH Write Protection Error
Hi there!I was trying to emulate eeprom using flash memory. I am using Nucleo-F030R8 board. I was able to program flash 2 times (0xF055 was the test value):however I cannot reproduce it anymore and whilst trying to program I get PGERR.Uploading my co...
Resolved! [STM32H7B0] Typo found in RM0455 - Does it have OTP Area?
Hello,There is a typo in Table 14 in page 153. It is mentioned in different places that STM32H7B0 supports OTP but in this table it is not mentioned!Could you please confirm that this variant supports OTP?Thanks,Ayoub
Resolved! TIMER interrupt priority using Register in STM32G030K6T6
i am Initialize UART2 and timer1 then my timer interrupt and UART2 interrupt in working fine but when i set priority timer first they do not set why? void main(void){NVIC-Set-Priority(TIM1_BRK_UP_TRG_COM_IRQn, 0);NVIC-Enable-IRQ(TIM1_BRK_UP_TRG_COM_...
UART Receive Interrupt update global variables
Using UART in Receiving Interrupt mode, I want to update various global variables values from console like Putty. Something like first send the opcode and then value. Please suggest if any sample codes available. I am relatively new to programming w...
Resolved! I don't understand how to use the HAL_I2C_Master_Transmit function. RTC DS3231
I am using I2C to transfer data from STM32F4 to DS3231 Real Time Clock registers.HAL_I2C_Master_Transmit(I2C_HandleTypeDef *hi2c, uint16_t DevAddress, uint8_t *pData, uint16_t Size, uint32_t Timeout)*hi2c - I2C structureDevAddress - Device address*pD...
