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STM32F4 USB Library

Posted on December 03, 2012 at 03:18What is the most current Library to use for USB development for STM32F4.

lnoack by • Associate
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I2C EEPROM(STM M24lr64) problems

Posted on September 02, 2012 at 00:16Hello,I am trying to write a byte(A0) to a particular location on the EEPROM. I have intialized the I2C(1) as in the code mentioned below(In sEE_INIT()). I write the byte using the EEPROM_write function and read ...

Bugs in STM32_USB-Host-Device_Lib_V2.1.0

Posted on December 03, 2012 at 16:53Hi all I've tried to create a vcp communication with my STM32F4-Discovery, but I've some problems... [code] Description    Resource    Path    Location    Type 'struct <anonymous>' has no member named 'ddrsel'    ...

pa by • Associate II
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  • 1 replies
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STM32F10x I2C Bus - No Clock and Data on Bus

Posted on September 21, 2012 at 20:25Hi All,I am seeking help on why I2C2 bus is not communicating. I can see a start condition and then CLK is held low while DATA is held high. Any guidance would be appreciated. Thanks. &sharpinclude ''oneWire.h''&...

ngoclt by • Associate
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  • 4 replies
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Fast SQRT function

Posted on December 03, 2012 at 09:32Hello,I'm looking for a very fast SQRT.c function (32bit Int to 16bit Int) that works on STM32f100. I already have one but it's slow. thank you, #sqrt-stm32f100 #integer-square-root

fakhfakh2 by • Associate II
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  • 4 replies
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24Mhz clock generation

Posted on November 30, 2012 at 05:26hi:      I want 24 Mhz clock generation for my sensor, how can i do that without MCO1?  MCO2 can be option. but by MCO2 i get clock  as 21.4Mhz etc but not exactly 24MHz, the sources and dividers didn't make right...

its by • Associate II
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  • 5 replies
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No RTC signal output on tamper pin

Posted on September 13, 2012 at 11:00Hi All, I have a fully functioning RTC on the STM32103. however it is fast by about 30 seconds over a 24hr period. The RTC is running from external 32768Hz crystal. Anyway for now i want to output RTC seconds sig...

abdulk by • Associate
  • 1415 Views
  • 3 replies
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Does USART need max232 to PC

Posted on December 02, 2012 at 19:52I used example code in here to send and echo char through UART. I connected PB10, PB11 right to RX and TX pin to FT232RL and connect it to USB's PC. On PC I'm using Hyperterminal with the correct baudrate, parity,...

I2C read() strange status register in SR2

Posted on November 01, 2012 at 17:32 Hi all, I have a problem on my I2C2 configuration on STM32F4. I try in poll mode first, and I have strange result : write() seems to be ok, but not read() (see comments in code below) : uint8_t data...

neoirto by • Associate II
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  • 7 replies
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