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New possibilities for the ultra-low power segment!

STM32U0 is the first Cortex-M0+ with a static consumption of only 160 nA in standby mode with RTC (Real-Time Clock) and 16 nA in shutdown. It also achieves 118 points in CoreMark and targets SESIP level 3 and PSA level 1 focusing on firmware code pro...

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Going to STOP while waiting for UART TX DMA to complete

Posted on July 04, 2016 at 04:06Dear forum, I am trying to transfer a block of bytes from RAM to UART2 using DMA on STM32F042.  I found the HAL function HAL_UART_Transmit_DMA, so I want to go to stop right after that, like this:    int_disable();   ...

hmc by Associate III
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STM32F746G-DISCO QSPI External Connect

Posted on July 04, 2016 at 15:51I want to connect the interface QSPI external chip, but I can not find a way to override some of the tire contacts the outer connector.Override contacts worked for legs IO0, IO1, IO2, IO3 but I can not override to NSS...

Reset read protection in STM32F205

Posted on November 01, 2012 at 22:15I turned on a test board this morning and could not program or read the flash area (0x0000 0000 to 0x1FFF FFFF).  Looking at the option bytes in FLASH_OPTCR register I see the RDp field set to FF, level 1 protecti...

Reading EEPROM using I2C with HAL library

Posted on July 04, 2016 at 09:30 Hi, I am trying to read the content of an EEPROM,24AA02E48T, using HAL I2C library. There is an example for this task which has been done in SPL instead of HAL and can be found athttps://github.com/Catethys...

STM32F407VET6 LED glowing in input mode

Posted on July 01, 2016 at 06:24I am using STM32F407VET6 board.I wants to ON and OFF LED using GPIO(PORT B & PIN 8). It is 5V tolerant . I reset the gpio and glow the led .But when I set gpio in INPUT mode still LED glowing.It is 5V tolerant.Why? ...

anjaly by Associate
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CubeMX 4.15.1 (with F7 1.4.0) broke the UART

Posted on June 25, 2016 at 01:59My UART interface was working great under CubeMx 4.14 with STM32F7 library v1.3.  There are a lot of changes to the UART HAL (not mentioned in the release notes for CubeMx, and there are no release notes for CubeF7) i...

kevin2399 by Associate III
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