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STM32F207 IOs output voltage levels

Posted on May 09, 2012 at 14:37Hi all,I need some information regarding the STM32F207 IOs output voltage levels... in fact according to the datasheet (Table 44) the VOH Min is:- 2.4 V for CMOS ports- VDD - 0,4 for TTL port.However I know that all ST...

CAN interrupts does not work

Posted on May 08, 2012 at 10:13 hello everyone! Help me, please, to find where is a bug in my programm for CAN slave. I have two boards. One is evaluation sk-mstm32f It sends requests. And the other board is my own board on stm32f103, which ...

std peripheral library error on stm32f207ve

Posted on May 10, 2012 at 01:17This function:  ITStatus DMA_GetITStatus(DMA_Stream_TypeDef* DMAy_Streamx, uint32_t DMA_IT);Does not correctly detect the interrupt status on this chip.   The interrupt status can be correctly discovered by the simple ...

stm32f2xx ADC EOC interrupt doesn't

Posted on May 09, 2012 at 06:29Working on our own hardware with an external mux.  Want to switch the mux on the interrupt, so I need the interrupt to happen.  So far I see no interrupt.   Configured as ADC3 so the default IRQ is either of ADC_IRQHan...

Best bluetooth module to use

Posted on April 29, 2012 at 22:17Hi all, I am currently using the STM3210C evaluation board to implement a prototype for a project I am currently busy with, and I am at the point where I need to add Bluetooth capability to my board.  In essence what...

USB MSD Run time DFU

Posted on April 18, 2012 at 14:05Hi, I am trying to implement a new project to combine MSD Mass Storage Device with DFU capabilities. I First play with both MSD ST's example and DFU ST's example separetely. Then I made a project with Both capabiliti...

gregoire by Associate II
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VBAT_Mesurement STM32V207 unusual results

Posted on May 08, 2012 at 18:13Hello, I've used the code from the example VBAT_Mesurement to test the ADC. Instead of connecting a  battery on pin VBAT I've connected VDD 3.3V. The program requests cyclic the converted value. .... VBATVoltage = (A...

hhosburg by Associate II
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STM32F103RB receiving data from USART

Posted on May 06, 2012 at 17:18Hi i stay try to send a character from Hyperterminal on the usart without any control on flow of usart(HW control or Xon/Xoff control)this is my code#define RCC_APB2ENR *(long*) 0x40021018#define GPIOA_ODR *(long*) 0x4...

I2C: 5 volts to 3.3. volts conversion

Posted on May 07, 2012 at 15:28Hi I'm using SRF08 ultrasonic distance sensor. This device returns the distance measure via I2C bus, but it works with 5 volts, so I'm afraid I could burn my STM32VL Discovery board. I wanted to know if this board coul...