STM32 MCUs Products

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''Unknown Target Connected'' After I connected 3v to PF9

Posted on May 22, 2014 at 17:02After I connected 3v to PF9, then It happened ''Unknown Target Connected''. I am not sure it is coincident, or that connection caused some problem in hardware  . I was planning to use PF9 as ADC to check the voltage. P...

Linda by Associate II
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UM1851 - errors?

Posted on May 09, 2014 at 16:21There seems to be a number of entries like this: ADC_GetCalibrationValueFunction Name uint32_t ADC_GetCalibrationValue ( ADC_TypeDef * ADCx)Function Description Returns the ADCx calibration value.Parameters ADCx : wher...

gbigden by Associate III
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Help with STM32F051 USART2

Posted on May 22, 2014 at 03:48STM32F051 Discovery USART2 problem I wanted to know if someone can help me with a problem I am having with the STM32F051 USART. I’m using the STM32F0DISCOVERY kit and have added a few additional LED’s for testing which...

FPU options between GCC and Keil - Link error

Posted on May 22, 2014 at 14:13Hi,Using the STM32F407 discovery board, when trying to link with Keil (armlink) against a static library built with GCC, I encounter the following link error:Object toto.o contains Build Attributes that are incompatibl...

mfm by Associate II
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stmcdc and Win 8.1?

Posted on May 22, 2014 at 12:12Our product that uses the Virtual COM port example from STM32_USB-FS-Device_Lib_V4.0.0 comes up fine all by itself on all versions of Windows up until 8.0, but for Windows 8.1 it doesn't install until you manually feed...

mats2 by Associate
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STM32F407 Ethernet interface problem

Posted on May 14, 2014 at 08:21I have a board based on the STM32F407 with a LAN8710A phy. I have ported part of the Nichelite IP stack and got it to work when the board is connected directly to the test PC via a non-crossover cable. When an Ethernet...

dbrustur by Associate
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STM32 Clock Issue

Posted on May 21, 2014 at 23:36I have written a small piece of Code in CooCox. I want to use it for the F303 and for the F030. I have noticed that the reset value is not correct. Regarding to the reference manual the RCC for both is identically. Res...

juergen2 by Associate II
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STM32F4 timer granularity ?

Posted on May 21, 2014 at 21:28hello forum ,I want count the time between the rising and falling edges of a 100 Khz square wave with STM32F4 timer now as the timer counts with 168 Mhz ,what can be the minimum count between the two very close measure...

stm32f427 PWM output interrupts

Posted on May 21, 2014 at 20:25I am working on outputing a PWM signal, and everytime I set up my initialization and enable the timer. The interrupt flags for channels 1,2 and 3 all get set and i am not sure why? even if i don't enable those 3 channe...

kevan by Associate
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