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3-Phase generation via timers...

Posted on May 17, 2012 at 02:36Does anyone know how to produce a solid 3-phase implementation via the timers on these STM32F4-Discovery? I'm wanting to be able to produce a simple 3-phase digital signal upon 3 output channels are varying frequencies...

jason22 by • Associate II
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USB Composite Device for DFU

Posted on May 18, 2012 at 14:37Hi everyone,I m trying to be in USB Mass storage Mode by default, and being able to do DFU action upload and download.I read that I have to disable all other interface to get in DFU mode.Thus, I wanted to use DFUSE to ...

gregoire by • Associate II
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DC32 Instruction

Posted on May 18, 2012 at 21:45 Hello -- We're trying to bring up FreeRTOS on our STM32F103c8 micro. In the function vPortStartFirstTask (file portasm.s) there is an SVC call as follows: cpsie i     0x8002efe: 0xb662         CPSIE     i  svc 0     0...

markbell9 by • Associate II
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stm32l151 RTC+HSE source problem

Posted on May 18, 2012 at 11:30 I am using in my STM32L151CB project internal RTC timer. The RTC clock source is selected HCE clock divided into 16 (RCC_RTCCLKSource_HSE_Div16). I using quarz crystal 9830400Hz - ABM2 I load in to...

alfred2 by • Associate
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Using cortex-m4 FPU with gcc toolchain

Posted on May 16, 2012 at 06:43Dear all, I'm using `Keil uVision` with gcc toolchain (Sourcery Codebench lite for ARM EABI) to program the `STM32F4 cortex M4` chip. The compiler control strings I have set are:     -march=armv7e-m -mfpu=fpv4-sp-d16  ...

ID Unique device ID register (96 bits) “,

Posted on May 16, 2012 at 15:12Hello,  The Cortex M3 have the �ID Unique device ID register (96 bits) �, this number give to the user application technical information about the Cortex M3 mounted in the PCB ?. Extract from the datasheet RM008 revisi...

xgarcia by • Associate
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library, taking into account the chip bugs?

Posted on May 13, 2012 at 07:30Recently found a problem when test the F4 USB: I use the F4 Discovery chip version of 'A', the manual says this version , there are some bugs in USB.  the Lib 2.1.0 ST OTG consider these bugs?

seawwh2 by • Associate II
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