Ask questions, find answers, and share insights on STM32 products and their technical features.
I am learning serial protocols using STM32 boards (F411RE and L432KC). So far I have successfully configured the boards as master and slave to send data from one board to another, and as I checked it works perfectly(I communicate the received data fr...
Hello everyone,I apply STM32F746BE with externel SDRAM and externel FLASH, Ethernet, LCD, I2C1, USART1, USART6. I-Cache and D-Cache disable.Bootloader located in the internal ROM configures SDRAM and QSPI in memory-mapped mode, then launches firmware...
I have a specific problem, I'm trying to read data from a serial source, length unknown, transmission length known, in an RTOS environment (FreeRTOS to be exact). I'm using the HAL drivers because at least, they set things up for me.I have several p...
Hi again, everybody. I appreciate that you can help me, I do not speak English so I am using the google translator, any detail you need to help me I will give you with pleasure. I have been trying to program a STM32F103 card as a slave in i2c communi...
Hi there, I'm pretty new to handling I2C communication protocols and could use some help in figuring stuff out. I've been attempting to get two STM32f042k6 boards to communicate with one another but my master device doesn't seem to receive any of the...
Hello guys, I'm using STM32L433RC MCU and I'm developing IAP Bootloader and DFU routine. I'm stuck in Flash memory sturcture of STM32L4 because the stm32l4 Reference manual(RM0394) shows there are 2Kbytes pages in Flash main memory(3.3.1 Flash memory...
I know the latency of Cortex M3/M4 of interrupt is 12 cycle, I got a scenario that interrupt and DMA use same trigger edge from external. Before the DMA starts transfering, I wanna ensure that CPU will not change the data. so the IRQ must be set to m...
Hello guys. Can anybody explain me how to use USART1 in STM32L476Disco?I mean that PA9 and PA10 did not soldered, but page 27 of user manual has info about COM1 and COM2 on these pins. And of course I have removed display from a slot, and tried all p...
Hi, How to exit from qspi memory mapped mode?Thanks in advance.
I am working on stm32f429 and micro controller reset every 500 ms, iwdg is not active but, it seems, it is activated by hardware or something which force cpu reset. How can i get rid of this?Please help, BR,
