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RTC Alarm trigger at end of second

Posted on January 17, 2013 at 06:09Hi all.I develop embedded software on STM32F103RC. And I having some problem with RTC Alarm. It triggers interrupt at end of second. Because of this I don't call some methods at the same second. I use LSE and presc...

kchuva by • Associate II
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OPAMP1 in STM32L151 how to turn on ?

Posted on January 17, 2013 at 06:15Hello  everybody !How to turn on OPAMP1 in STM32L151 ?Under debug (I use Keil + Ulink)   I see the content of OPAMP_CSR register.  All bits are 0 after the reset of the processor.  But according to datasheet, after...

HID Keyboard example ported to GCC?

Posted on January 13, 2013 at 21:52Hi guys, I have been looking for an HID keyboard example for the GCC compiler. I love this STM32 microconroller so far due to the ability of having configurable endpoints. I have the Olimex STM32-H103 board. Would ...

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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  • 2 replies
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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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  • 2 replies
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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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