After setting configuration registers in HAL_DMA_Start_IT, DMA fails to fire back interrupt, HAL_DMA_IRQHandler(). The TransferComplete call back routine is not called but only once after reset since HAL_DMA_IRQHandler() is called only once after ini...
We are not using SMPS functionality of STM32H747AII MCU. Can we left VDDSMPS, VFBSMPS, VLXSMPS pins unconnected?
MCU: STM32H753VI Scenario:Requirements specify that I must use internal flash memory to store error counters for our fault management system. I was going to directly write to flash memory using the built in HAL commands, but found that most people se...
Posted on June 28, 2017 at 14:27Hi all,i have two custom board with a microcontroller STM32F401CC in a 48pin package. One of these two micro is not working anymore due to a programmed option byte during a debug session. ST-link tell me this micro ha...
Hi Friends,In STM32H7 MCU, both M7 and M4 can access shared memory, such as D3 SRAM4. I am going to use a D3 SRAM4 address as a place to share some status information between M7 and M4. If a 32bits word is defined shown as below, can the access from...
The reference manual RM0503 rev2 has inconsistent information about the flash wait states.Table 9 in §3.3.4 shows three options: 0WS, 1WS, 2WS (and, by the way, it says that all three of them correspond to "1 CPU cycle", which seems wrong).Instead, §...
I have a custom board with a STMWB55 (master) and a STM32F031 (slave). They communicate over SPI using DMA. Unforturenately there are communication problems. In order to identify the problem I have simplified the setup. I have used a ST NUCLEO-F031...
I am using STM32G474VET3 controller.As i am using DAC out voltage for my application.So i want to know the DAC output stability, performance over temperature, & the temperature drift at Maximum junction temperature 150 °C.Also any other factors affe...
This question is about HAL_SPI_TransmitReceive.If a slave starts sending 8 bytes of data after the 4th byte sent by the master, is it possible to use HAL_SPI_TransmitReceive without a dummy (ignore) buffer?We will be the master side.Our assumption is...
Hi,I use STM32U575.The STM32U575 works as a USB CDC ACM device and I implemented it in standalone mode.OTG_FS_IRQHandler is called when data is received from the host device.Is there a way to determine that when OTG_FS_IRQHandler is called, it is due...
