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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I2C multimaster mode

Posted on December 17, 2016 at 19:28Hi,I would like to know if I can use one I2C bus for 3 devices, first is master, sencond is slave and third is master/slave (STM will siwtch between master and slave mode to communicate with this 2 devices). Is th...

karol1dw by Associate
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STM32F401VDT TO ESP12E FOR SPI PROTOCOL

Posted on December 16, 2016 at 14:08Hi,My name is amarr., am new to this forum, I am trying to send some AT commands to STM32F401VDT controller throughSPI protocol to Wifi module(ESP12E vendor Ai-Thinker). For that purpose i need to make Module into...

amar2 by Associate II
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USB baud rate

Posted on December 15, 2016 at 14:11Hello, I'm trying to work with USB FS mode embedded in stm32f407vgt6 as device connected to PC(host), the reference manual says FS mode supports 12MHz speed and it's mentioned in the notes of CDC library (version ...

the IWDG_STOP bit in the FLASH_OPTR register

Posted on December 15, 2016 at 22:59I have a STM32L152 device which spends most of its time in STOP mode, waking perhaps once an hour. I'd like to add IWDG support, but need to 'freeze' the IWDG during STOP mode, which per STM docs can be done.I hav...

STM32F4 SPI DMA simple question

Posted on November 28, 2016 at 17:27Hi,I am a newbie developer on stm32 and iar.I have a simple question about spi DMA. I use a stm32f412 mcu as a SPI slave device,when the DMA controller on the stm32 mcu is starting to move data from tx buffer to s...

STM32L071RZ problems with flash erase

Posted on December 16, 2016 at 13:26Hello,I am trying to erase a flash page in Bank 2 of STM32L071RZ and it instead erases the 1st page of Bank 1( where interrupt vector table is stored). The code is fine as the same works very well when the page ad...

sai by Associate II
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Resolved! CubeMX shows incorrect I2S in Clock view

Posted on December 15, 2016 at 23:38Just wanted to mention a small bug in CubeMX 4.18.0. I am using STM32F446ZET. It has two I2S peripherals. When I configure I2S1 in the Pinout tab, the Clock tab shows the clocks wired for I2S2. And vice versa. The...

STemWin beginner' problem

Posted on December 11, 2016 at 14:18Hi, friends.I try to link application sample from STMF1cube / STemWin with Keil uVision5 for evaluation board STM3210E_EVAL. I have 14 times 34 warnings about macros redefinition between ....\KeiluVision5\ARM\PACK...

ygrod by Associate II
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stpm34 INT1 LED1

Posted on December 16, 2016 at 10:46 I could see how to set LED1 as Primary current SD bit stream. But I could not find how to set INT1  as primary SD voltage bit stream?What is the bit stream speed(is it original 7.8125kHz?, I mean to get VxData[0...

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