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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USART interrupt problem

Posted on May 13, 2013 at 11:10Hi guys, i've a problem with USART communication using interrupts.Using only USART device, the communication works correctly.When i try to using the usart device with some other timers interrupt routines with timers ab...

pietro2 by Associate II
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Why is the IrDA Baudrate limited to 115.2kBd?

Posted on May 13, 2013 at 20:56Hi, in STM32F4 RM 26.3.12 it says, that ''USART supports only bit rates up to 115.2kBps for the SIR ENDEC''. Can anyone tell me the reason? (115.2kBd must be an increibly low data rate for a 168MHz processor). In fact ...

flyer31 by Senior
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I2s USART conflict??

Posted on May 13, 2013 at 00:12I am successfully using I2C control and I2S to send data to the CS43L22 and producing simple sawtooth--> musical notes(see http://www.mind-dump.net/configuring-the-stm32f4-discovery-for-audio#comment-1344). When I try ...

pccmd by Associate II
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STM32F4Discovery FAT FS

Posted on May 04, 2013 at 06:01I am trying to implement at FAT FS on the STM32F4 Discovery board...the firmware package provided by st supplies third party files.  But are these files enough to implement the FAT FS on the STM32F4 board? Or is there ...

ADC via dma and USART

Posted on February 13, 2013 at 10:52 Hello, i am having trouble writing code on STM32F4Discovery. my goal is to get values from ADC in continuous mode and send them to USART/UART (with DMA or without)using interrupts. so i wrote a code made out ...

STM32F4Discovery external interrupt problem

Posted on May 13, 2013 at 15:46 Hello,  I have a problem with external interrupts on STM32F4Discovery triggered via push-button. The button is connected to pin PA4 using the same technique used for USER button (the picture is from the user manual):...

l_ by Associate
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Continuous data reading from USART

Posted on May 13, 2013 at 00:53Hello,I have a USART data that comes from another device that runs continuously, I have to read all of this data and send it directly to a PC host through a USB.The problem is that I don't want to loose any received da...

slachist by Associate II
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Calculate Temperature Sensor STM32L Discovery

Posted on May 11, 2013 at 19:44hi , I have a question , when I  calculate the temperature with this code using the formulate in the data sheet:val_adc=ADC_GetConversionValue(ADC1); vsense=(val_adc*Vref)/0xfff;val_adc=(vsense/Avg_Slope)-273.15;in the...

kotoel26 by Associate II
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