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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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STM32L151 SPI only sending zeros.

Posted on June 13, 2014 at 18:32I'm trying to get SPI2 up and running to talk to another chip and I'm having some problems. I can see my SCK and MOSI traces on my scope but my DR register always has zero. I've even tried this right after SPI config:...

kkarasti by Associate II
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de-initialize USB completely

Posted on June 16, 2014 at 10:01Hi, I work with STM32L1 and use the USB in VCP. The firmware work perfectly. I use the library ''STM32_USB-FS-Device_Lib_V4.0.0'' and I use the example firmware ''VirtualComport_Loopback'' The usb work!. but I need co...

RTC subseconds issue

Posted on June 16, 2014 at 15:25Hi,I am working on STM32F303VCT6.The source clock is a cristal of 32.768Khz.I need to have a time resolution on the RTC of 1ms. So I have arranged the prescalers as follow:SynchPrediv = 0x3E7;  AsynchPrediv = 0x21;My ...

STM32F4 and double returning value divided by 10.

Posted on June 16, 2014 at 10:16Hi guys, i recently started to work with orientations and quaternions. Said to do a little math in paralel with my program with a excel spreadsheet. I have the following q`s values double q1=0.99551634; double q2=-0.0...

Bogdan by Senior
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