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Interrupt questions on STM32F4

Posted on August 28, 2016 at 21:51I am using STM32F407VG but questions i guess will be the same for all series.- When 2 interrupts come on same time,the first will be executed comes from priority and sub-priotiry.Right?-When 1st interrupt comes and ...

SProg by Associate III
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DMA I2C locking up STM32F4

Posted on August 29, 2016 at 20:10 Hi! Im trying to change a library for STM32F4 to include DMA transfers when using I2C http://stm32f4-discovery.net/2015/05/library-61-ssd1306-oled-i2c-lcd-for-stm32f4xx/. Im using it do drive an OL...

denix8 by Associate II
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[STM32F7] Overrun error with USART6

Posted on August 25, 2016 at 09:42Hi,I am using a STM32F746NG discovery board. My project is supposed to receive, display and store data. It receives data over USART6 in asynchronous mode using DMA. To display the data I want to use the STemWin libr...

smrtkai by Senior
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Nucleo-F767ZI : RTC is not working

Posted on July 18, 2016 at 17:33Hello, Just executing STM32Cube_FW_F7_V1.4.0/Projects/STM32F767ZI-Nucleo/Examples/RTC/RTC_Calendar, the RTC never initialise. The function  RTC_EnterInitMode return an error because RTC_ISR_INITF bit never raise. We ...

Memory space full on STM32F091RC, NUCLEO board

Posted on August 27, 2016 at 04:14Hi guys,I have been debugging and downloading my code into the STM32F091RC on the NUCLEO board. Unfortunately I experienced memory space issue. '' There's not enough space on your NUCLEO...'' I look at the NUCLEO dr...

jialiusk by Associate
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STEMWin.GUI_MULTIBUF_Begin flickering

Posted on August 26, 2016 at 18:35After including some time critical realtime process to the mcu application which also handels a display flickering occurs. (bad idea i know)I found that the flickering occurs when the GUI_MultiBuf_Begin function is ...

STM32F446RE CAN 1Mbps

Posted on August 25, 2016 at 06:53Hi Guys,I tested CAN1(GPIOA_11 and 12) on Nucleo-F446RE with std lib 1.7 and successfully run Tx/Rx on 500Kbps and 250kbps. but, it is strange that 1Mbps is not working.Please review my setting below and let me know...