STM32 MCUs Products

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Forum Posts

Jumping to Application

Posted on May 13, 2014 at 16:53Hi, I'm quite new with the ARM and STM32 world. I'm developing an application wich has to load a bootloader and, at a certain point, jump to the main application. I'm using the STM32F4-Disco. The bootload is quite comp...

Lori B. by Associate III
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  • 25 replies
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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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  • 2 replies
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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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  • 0 replies
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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
  • 426 Views
  • 1 replies
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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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  • 4 replies
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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...

STM32 Pin config question

Posted on May 20, 2014 at 19:35Hello all, as a newbie to STM32 I am unsure how to configure the pins for CS and PWM in the attached picture. The Buzzer is from mikroElektronika. Thje buzzer ist from mikroElektronika, but they didn't really help with...

forum by Associate
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