STM32 MCUs Products
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Resolved! __weak requirement on stm32f4xx_hal_pcd.h functions
I have default setup under linux with CubeIDE 1.7.0 and for overriding, i had to modify as __weak void HAL_PCD_ConnectCallback(PCD_HandleTypeDef *hpcd);__weak void HAL_PCD_DisconnectCallback(PCD_HandleTypeDef *hpcd);oh header definitions. Otherwise i...
Is the formula for the frequency of the sine wave generated by the D / A converter in the document from ST incorrect?
Hi,I generate a sine wave on the DAC. To trigger the DAC, I use the TIM 2 timer, which is clocked on the APB1 (32 MHz) bus, then I reduce its frequency through the dividers PSC = 15 and ARR = 1. In this way, I obtain the frequency from the timer equa...
HAL_GPIO_EXTI_Rising_Callback or EXTI0_1_IRQHandler
Hi, is there a reason to implement the HAL function over simply running code inside the IRQ handler.In my current case I only am incrementing a counter and do not need to demux the line, so I presume not this time, but if I was doing something more i...
Resolved! What is the cause a DMA transfer error?
I am trying to read from an external SPI ADC at a 1MHz rate using a timer and 4 dma channels.I setup TIM 3 to run at 16 MHz and rollover at a count of 24.CC1 pulse is 1, cc2 pulse is 2 cc3 pulse is 22. CC1 drives DMA1 stream4 which is setup to trans...
STM32L462 Can not start DMA transfer via SPI.
Enabled DMA2_CLKSPI3_CLKset DMA2_CSELR = 0x00000033;GPIO is set up correctly and has clk enabledCMAR1 CMAR2 CPAR1 CPAR2 sSetup interrupts for DMAe Channel 1 and 2 and their prioritiessetup spi3 cr1 cr2DMA2_CNDTR2 DMA2_CNDTR1RESET Ints with DMA2_IFCRF...
SDMMC SD Card read error
Hello.I implement the SD Card access using the SDMMC1 on the NUCLEO-H743ZI board + SD Card sub board.Now the SDMMC1 Interrupt was not occurred after the DMA request setting and SDMMC interrupt enable(DCRC, TIMEOUT, RXOVERR, DATAEND) for reading the M...
Hello, I have a short circuit between the RESET and the VCC. I measure a impedance of 1ohm between these two signals and 80ohm with the GND. The RESET pin only goes on a 0.1UF capacitor and on the programming connector.
the ST-LINK can't detect the micro but the software who is already programmed in the micro work perfectly.Does anyone have an explanation why the reset breaks like this?
ST-LINK/V2 in-circuit debugger/programmer for STM8 and STM32 Issue with IAR Embedded workbench
Hello everyone,I've been working with ST link v2 programmer/debugger for a while with IAR embedded workbench. But recently each time I start a debug session or I appoint a break point and I arrive at the breakpoint, the IDE freazes for a while and wa...
Resolved! DC Relay Heat when it's closed bypass suggestions
Hello everyone,I'm working on a projects that countains a stm32l152re to communicate with temperature/Humidity sensor amongst other sensors and a DC relay to control some light bulps. However, when the relay is closed, it overheat and corrupt the me...
