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STM32F103 I2C interrupt driven method 2

Posted on January 16, 2012 at 22:29I am having issues with interrupt driven I2C using method 2 from the reference manual. I am trying to read from the magnetometer on an lsm303dlh. The least significant bit of the most significant byte seems to be t...

eexlb2 by • Associate
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STM32F103 HD - Initial Stack Pointer is Wrong

Posted on July 07, 2013 at 18:55I'm trying to set up a project (Eclipse, gcc, OpenOCD) for a hand made prototype board using an STM32F103RC chip (48K RAM).  It works, sort of.  My linker script specifies the initial stack pointer as _estack = 0x200...

SPINFamily Evaluation Tool + STEVAL-PCC009V2 + EVAL6480H R1.1

Posted on May 14, 2013 at 19:05Hello,I want to get the SPINFamily Evaluation Tool (L6480) working but everytime I get an error message to make sure the communication board (STEVAL-PCC009V2) is connected to the PC and board firmware has been updated ...

loibl2 by • Associate II
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  • 6 replies
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STM32f2xx could not work with maximum frequency

Posted on July 03, 2013 at 13:27I'm using default configuration (according to UM1061, RCC section) to configure an SMT32F215RG to work with 120MHZ CPU clock. here is my configurations: /* PLL_VCO = (HSE_VALUE or HSI_VALUE / PLL_M) * PLL_N */ #define...

PWM Output

Posted on July 05, 2013 at 13:25The original post was too long to process during our migration. Please click on the attachment to read the original post.

andykim by • Associate II
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Max232 level shifter

Posted on July 05, 2013 at 12:02hello i have usb <-> R232 converter and i want to make it receive correct characters from stm32f4 board , so which capacitors i have to use with max232 to realise this ? and thnx :)

LSE not starting when used for RTC

Posted on July 05, 2013 at 13:21 I am trying to use a 768kHz Xtal with 7pF load capacitors with an STM32F050C6. The problem I am having is that I cannot get the XTAL to reliably start up. I have seen it start a few times but most of the time it ...

ashley by • Associate II
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  • 5 replies
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connecting audio codec to STM32F4 Discovery using I2S

Posted on July 03, 2013 at 11:52Can anyone suggest where I'm going wrong? I'm new to this forum and people seem to be posting longish code fragments, but I apologise if I seem to be posting an inappropriately long question. I can't get I2S comms to ...

d_1 by • Associate II
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  • 7 replies
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STM32F303 op amps

Posted on July 04, 2013 at 11:52I am a bit confused about the F303 op amps. If they can be used in inverting mode won't a positive voltage into the minus input result in a negative output voltage? Of course it won't happen because they are rail to r...

modcan by • Associate II
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