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,
In my Nucleo while debugging STLINK LD1(RED and GREEN) is not blinking. I study with some of documents. it is communication error, But the debugging is is normalPlease tell me what is the problem ? Any settings to change ?I have attached the photo. N...
I have generated MDK-ARM project from the USART_3_Receive_Send example from stm32 mat target example, I have successfully compiled all and burned to stm32f103 board, when connected to terminal it finds, it is sending unknown chartacters to terminalI ...
Hi Everyone ! I have a problem for calculating timer for 1ms. I attached configuration for clock and timer.As I understand Timer2 uses APB1 Clock Bus but for timer it will be APB1x2 if APB1 prescaler is not " 1 "So when I use Prescaler 59999 for 60Mh...
Hi, I am using two Identical board, both board installed with a STM32F733ZE, and both have the same program loaded.The program is very simple where if an interrupt from PG0, will reset the PWM counter of TIM8. provided with the same interrupt source,...
I have nucleo-64 STM32L476 board. I have initialised ADC. I am able to read all the three channels ( that I configured in cube Mx) correctly using DMA.Then I added SD interface. I was able to read and write in the SD Card as well. But as soon as I in...
Dear people,I do not understand the following behavior of the STM32H755ZI:I implemented a stack test by configuring a safety zone with MPU. When the stack overflows, the MemManage Handler is called. So far so good.In this MemManage Handler I only sav...
