STM32 MCUs products

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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...

Start up problem with isochronous usb transfer.

Posted on May 03, 2012 at 15:23Hello,We are two swedish students trying to implement a camera unit into a circuit board. The company we're writing this report for has developed this platform and our task is to write a protocol that handles the video...

emil83 by Associate
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UART Rx GPIO Mode

Posted on May 06, 2012 at 21:16HiI've seen quite a few UART examples, and all of them set the RX GPIO pin as ''Input-floating''.Why is it not set to ''Push-Pull'' (which can sink and source current)? The Tx pin is set to push-pull. What is the diffe...

apatel by Associate II
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complete reset of stm32l

Posted on May 07, 2012 at 11:55is it possible to make a complete reste oh the stm32l? because we tried to download a program, in the programme we were using the pin13 of the port A and now we can't download anything on the card. so i would like to k...

claire by Associate III
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STM32 DISCOVERY

Posted on April 30, 2012 at 20:23Hi all I just received a STM32 discovery eval board . I am trying to learn to code new projects with it . Can you offer me a good book for this ? Thanks Elico #stm32-discovery

Mic on Discovery

Posted on May 01, 2012 at 12:37Hi. I want to simply read the PCM data coming from the microphone(MP45DT02), which is on the stm32f4 discovery board. I configured the I2S2_CK and I2S2_SD pins, the I2S communication, and enabled the SPI_I2S_IT_RXNE in...

I2C

Posted on October 21, 2010 at 16:50hi i am tring to activate the I2C in order to External EEPROM i used this code but nothing is in the output on PB why? #include ''stm32F10x.h'' #define IWDG_WriteAccess_Enable     ((uint16_t)0x5555) #define IWDG_Pr...

ezrab by Associate II
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