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Eclipse and CodeSourcery ARM Sourcery G++ question

Posted on October 22, 2011 at 02:19HiI have eclipse 3.6 with GNU ARM C/C++ development support configured.However, it can generate hex file with warning: cannot find entry symbol Reset_Handler; defaulting to 08000000. Not sure will this effect the h...

sharethl by Associate II
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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
  • 990 Views
  • 4 replies
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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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problem with calculating internal tempwerature with STM32F105

Posted on May 16, 2012 at 23:26Hello I have a problem with calculating internal temperature with STM32. When processor VCC is 3.3V everything is ok - temperature is almoast accurate with wide temerature range. But whet processor VCC is below 3V temp...

wadi by Associate II
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  • 2 replies
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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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  • 1 replies
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Difficuly of implementing nand driver on STM32F205ZG

Posted on May 15, 2012 at 08:47Hi all, Now, I'm trying to implement nand driver of  SAMSUNG K9K8G08U0D (SLC, 1GBYTE) on STM32F205ZG cpu. However, it not easy to do it. First, reading device ID is OK. Second, block erase function is also OK. But,...

kpkang by Associate
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  • 2 replies
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