STM32 MCUs Products

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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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f4 discovery rs232 baud problem

Posted on July 11, 2013 at 10:29Hi, I have it working but seem to get about 1/3 of the baud rate that I program into USART_InitStructure.USART_BaudRateIn other words, I have to set it to 9600*3 to get a baud rate of approximately 9600 baud.Maybe I h...

STtub driver under windows 8

Posted on July 04, 2013 at 12:39I'm trying to get DfuSe application working under windows 8, but I have problem with installing the STtub driver for device in dfu mode. I have tried to install it with disabled forcing of signed driver in win 8, but ...

pa2 by Associate II
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STM32F407 ADC Scan operation

Posted on July 11, 2013 at 16:17The STM32F407 ADC(s) support scan mode where a predetermined group of ADC input channels are successively converted with the results DMA'd to a circular memory array at the end of the group conversion. This works but,...

John F. by Senior
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STM32F4Discovery RTC+VBAT reset

Posted on July 10, 2013 at 16:33Hy all! I've a STM32F4Discovery board. I want to use the RTC library. I see the board schematic, and I think the VBAT pin is always on VDD. I configure the RTC with LSI, and wake up event, and write a number to the b...

totti001 by Associate II
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STM32F2 JTAG without NJTRST unusable

Posted on June 30, 2013 at 00:29We have a STM32F205RCT6 connected via JTAG. The JTAG emulator uses TDI, TDO, TMS, TCK and SRST (system reset). The NJTRST (JTAG reset) pin is electrically not connected to the JTAG pin header. As long as the softwar...

STM32F4 Discovery SPI with DMA Ghost byte

Posted on July 10, 2013 at 14:28I want to write a buffer into Winbond SPI flash using SPI DMA. When I write buffer, DMA write a null byte at first location and then start writing my buffer from second location and hence writes one character less tha...