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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IAR : 32 bits SP is not 64 bits DP !

Posted on November 26, 2014 at 14:27Reading http://www.iar.com/Global/Resources/Developers_Toolbox/C_Cplusplus_Programming/Improve_performance_of_digital_signal_processing_with_IAR_Embedded_Workbench_for_ARM.pdfpage 3 :arm_sqrt_f32 : 52 cyclessqrt :...

tarzan2 by Associate III
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Exclamation mark breakpoint

Posted on November 26, 2014 at 18:20 Hi! Keil  MDK Lite V5.12 I cannot tell why the debugger cannot breakpoint certain rows. Like a CAN_Transmit function. Not only will put an exclamation mark, it will jump over it completely. This function is that ...

zamolan by Associate II
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CHINA made stm32 quality

Posted on November 25, 2014 at 09:09I get some stm32f103cbt6 or similar parts from china that prices are very low compared to digikey prices(ST price is 2.4$ @10000), but china price is about 2$, what is the reason? Is china made stm32 reliable and ...

STM32 Reciprocal Counter

Posted on June 24, 2014 at 09:04I'm trying to make reciprocal counter on STM32F4-Discovery. Concept: 0. Input signal connected to TIM1_Ch1 (PA8) and TIM4_ETR (PE0); 1. TIM1 is clocked from HSE 168MHz,               configured to start from external ...

Timer program for 1us and 1 ms

Posted on November 26, 2014 at 15:54Hi All, I am having stm32f4discovery board with stm32f407vg processor and i am new to stm32f4  & also embedded programming. i tried delay using normal delay loop function calling method but i need to check timer i...

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