Forum Posts
Resolved! Powering up a 5 volt tolerant external pull up.
Does anyone have experience with 5V pull ups? do you have to power on the 5V source after the MCU is started?I'm running a STM32L431CBT6 with external 5 volt 10k pull-ups on the pins PB11,12,13,14,15 and PA1. (all flagged as FT pins)I've been able t...
Resolved! How do I process just UART RX interrupt events while using HAL_UART_Transmit_DMA
Hi, I am working with F413 and I am using USART3 to receive and trasmit data over UART. As I need to receive unknow size of data I wrote my own interrupt handler for RX. However I would like to transmit data out with a help of DMA. If I call regular ...
SPI communication with DMA handler
Hi, I have implemented SPI communication using DMA and it works. When i receive different data than the mentioned protocol format then it hangs and i dont receive any more data and i have to reset the chip to get back the communication. Is there any...
CAN rollover between FIFOs after overflow in pooling mode
Hi everyone!I'm working with STM32F303. I'm configuring the CAN peripheral with HAL libraries for pooling mode operation. I'm wondering if there is a method to check only the FIFO0 fill level and configure the peripheral to move FIFO1 messages into F...
Boot to RAM from SD card on STM32H7...
Greetings!I've got custom hardware running on an ST32H7. I'm trying to load an image from the sdcard into off-chip RAM for execution. RAM's at 0xC0000000, and I think I've set the MPU configuration correctly: // Region 2 is the external RAM MPU_InitS...
Shouldn't DMA_HandleTypeDef State be volatile?
Current structure is:typedef struct __DMA_HandleTypeDef { ... HAL_DMA_StateTypeDef State; /*!< DMA transfer state */ ... } DMA_HandleTypeDef;Interrupts can change the State value, but it's not volatile, so the co...
Delivery Time of STM32H743ZIT6
Hi, I would have a question regarding the lead time of the STM32H743ZIT6. We use the part in multiple boards in our platform which is currently in prototype stadium. Fro the next charges of PCBs we are trying to order some uControllers (STM32H743ZIT6...
Is it possible to run multiple MQTT clients on a single H7 using Netx Duo
I have a project where a single stm32h747 will be acting as a system controller for two groups of motor drivers. We want to create a client whenever a motor group is plugged in. This will ideally allow us to use functionality like the last will messa...
