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Posted on May 09, 2018 at 14:49Try to send 16 bytes via USART1.ISR has reset value (0xnnnn n0C0) before sending first byte. Write bytes into TDR like this: USART1->TDR = *bufptr++;ISR bits TXE and TC get cleared as expected (0xnnnn n000) after first...
Posted on May 15, 2018 at 23:32Is there a good example or apnote on the proper use of sleep on exit from an IRQ?Do I need the Data Synchronization Barrier instruction? (to ensure sleep)here is some pseudo code, this does appear to work fine. I can ...
Posted on May 09, 2018 at 14:37Hi!in my program i am using the 'HAL_UART_Receive_IT' function, it is first called when i initialize my app.There comes a moment during the run of the program when the pointer to buffer given to the function expires an...
Posted on May 14, 2018 at 20:27Hi all,I'm trying to get ROP enabled by my bootloader.This function is run first up by main().I'm finding that it get stuck in a loop, as ROP never seems to become enabled (always reads back as being set at level 0).An...
Posted on May 15, 2018 at 12:00Hello,We are a team of engineering students working on a project using STM32 technology and support.Firstly, the Main subject of this topic is based on the problematic : How to merge 2 different projects ?Next of this ...
Posted on January 23, 2017 at 21:32Hi, I have a question regarding STM32L Leave DFU mode command. I can enter in to built in bootloader from startup code. I am initialising some GPIO pins in startup (assembly code) and they maintain the status after...
Posted on May 15, 2018 at 15:10 Does STM32F767IIT6 tolerate an undershoot of -0.8V lasting for 2ns at a 5V tolerant I/O?
Posted on May 15, 2018 at 16:44I am designing a board with an STM32L443 MCU in a UFBGA64 package. There is a design requirement for components only on one side.As with any MCU I plan to decouple the power supply pins using 100nF capacitors as close ...
Posted on May 15, 2018 at 12:26HiI use mass storage sample from STM32CubeF4 ver 1.21 pakageWhen I format a partition with a NTFS system file and copy a large file to it, if device resets during the copy, the partition is corrupted and requests forma...
Posted on May 15, 2018 at 14:51 Hey guys, I'm trying to activate the Overvoltage detection (PVD) on the STM32F429ZIT6. But I'm not reallly sure if I got it right. DatasheetDocID024030 Rev 10 page 29: The device also features ...
