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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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Usage of PRIMASK vs pending interrupts

Posted on July 02, 2013 at 20:57In a project I have a periodic interrupt (5ms) that misses a beat from time to time (1-2min).I have an os that will globally disable interrupts (set primask to 1) for very short time then re-enable them. I suspect it ...

Using LSE for RTC on a STM32F4DISCOVERY board.

Posted on February 24, 2013 at 02:29Hello everyone. As many may have noticed, the STM32F4 discovery boards comes with an unfitted OSC32 crystal (X3) & biasing caps (C16 & C27). Did anyone ever tried to provide  her/his the board with those missing c...

arnaljl2 by Associate II
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STM32F10C-Eval ethernet connector

Posted on July 02, 2013 at 10:46 Hi, I connected the ethernet port of the STM32F10C-Eval to my pc using an ethernet cable. But the led of the ethernet port is not blinking which means that the connection is not detected. I have changed the cable but...

STM32F4xx __disable_irq(void)

Posted on July 01, 2013 at 15:36 Writing in 'C', I use __disable_irq(void) before reading a value that gets updated in an interrupt service routine. __disable_irq(); //prevent serial interrupts Count = TSp->DataAvailable; //get number...

John F. by Senior
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STM32F333?

Posted on June 03, 2013 at 23:11When willthesaleSTM32F333, of which are  referred  in http://www.arroweurope.com/nc/services/downloadcenter.html?tx_abdownloads_pi1%5baction%5d=getviewclickeddownload&tx_abdownloads_pi1%5buid%5d=868&tx_abdownloads_pi1...

asrock70 by Associate II
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LCD STM3220G

Posted on July 02, 2013 at 09:18Hello,I'm working with stm3220G and I get lcd example and ok. I have my small project with tasks and when I try to write to lcd into task routine, the operation failed. The operation has successfully if into task rout...

mosine by Associate II
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usb to PC

Posted on July 02, 2013 at 14:58Hi,I'm working with stm3220G eval board. I need a simple example, where I can communicate pc-usb(otg), and so I can send a byte to board and vice versa. I installed virtualcom, I try with all device examples, but I ha...

mosine by Associate II
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STM32F10C-Eval ethernet connector

Posted on July 02, 2013 at 10:46 Hi, I connected the ethernet port of the STM32F10C-Eval to my pc using an ethernet cable. But the led of the ethernet port is not blinking which means that the connection is not detected. I have changed the cable but...

STM32F10C-Eval ethernet connector

Posted on July 01, 2013 at 10:41Hi, I connected the ethernet port of the STM32F10C-Eval with the Hub using an ethernet cable. But the ethernet port is not detected. What  could be wrong? Thank you.

STM32F0xx_StdPeriphDriver Comparator Speed Setting

Posted on July 02, 2013 at 08:21Hi, there is a bug in stm32f0xx_comp.h (V1.0.0RC1 / 27-January-2012), which I recently downloaded from the ST website. The comparator speed settings begin with low speed modes, but according to the reference manual (1...

oliver by Associate
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