...
Posted on May 19, 2012 at 09:26............
Forum Posts
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...
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 ...
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...
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...
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...
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 ...
EXTI_Mode_Interrupt vs EXTI_Mode_Event
Posted on May 17, 2012 at 03:39What's the difference between EXTI_Mode_Interrupt and EXTI_Mode_Event? #external-interrupt
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...
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?
