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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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Arithmetic on STM32F4xx

Posted on January 16, 2013 at 16:24Hi All! I have some issue, when I make an arithmetic operations using my STM32F4 Discovery.simple example:float a = 3.2, b = 2.5, c = 0;c= a +b; When I run this code, I get Hard Fault Exception.What possible reason...

FLast.18 by Associate II
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spi serial flash

Posted on January 14, 2013 at 18:00The original post was too long to process during our migration. Please click on the attachment to read the original post.

TIM2 update event INT Generation

Posted on January 16, 2013 at 17:18Ok, I'm trying to get a consistent 100 msec interrupt out of Timer2 to drive an external device in steps (but not using PWM).  According to the manual, I have the regs set  right: ARR, prescaler, all loaded properl...

eaverill by Associate II
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STM32F4 discovery (LQFP100 )

Posted on January 16, 2013 at 11:33The original post was too long to process during our migration. Please click on the attachment to read the original post.

artas110 by Associate
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Ways to speed up writing to program flash

Posted on November 20, 2012 at 23:33MCU is an STM32L MD part. My application calls for optical-based software updates (don't ask if I can change it), and I'm at the process of writing that part of the software. I've been benchmarking how long it tak...

shotaro by Associate II
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Running a particular function from RAM

Posted on January 15, 2013 at 20:21Hi, As discussed in [DEAD LINK /public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Ways%20to%20speed%20up%20writing%20to%20program%20flash&Fold...

High Speed Offload?

Posted on January 14, 2013 at 14:30I've been working with several sensors connected to the STM32F4-Discovery board using interfaces such as SPI and I2C at rather high data rates.  Well...maybe not that high of data rates, but fast enough where USART...

PWM Time shifting signal

Posted on January 09, 2013 at 17:20 Hi, I program a PW M sig nal in PB4 port using TIM3 using this program int main ( void ) { while (1) { TIM3->CCR1 = 1000 ; } } /*____________________________TIM3_______________________...

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bmwael1 by Associate II
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Generate series of two pulses with STM32 timer

Posted on January 15, 2013 at 10:33I use STM32 MCU for controlling TRIAC phase control circuit. Timer's PWMI mode currently used for capturing AC period (T) and zero-crossing error (dz). On period capture event I need to generate two pulses with equ...

easphyx9 by Associate
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