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SPI with DMA loopback

Posted on June 18, 2013 at 00:45The original post was too long to process during our migration. Please click on the attachment to read the original post.

nrhinnant by • Associate II
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Bug in stm32f4 Audio playback and recording ?!

Posted on April 25, 2013 at 12:11 Hello ; In the recording example in teh discovery board we have this code : if(Data_Status==1) { Data_Status=0; /* Switch the buffers*/ if (Switch ==1) { pAudioRecBuf = RecBuf; writebuffer = Re...

sami by • Associate II
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  • 1 replies
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Memory Allocation of variables

Posted on June 20, 2013 at 15:34Good afternoon everyone,I'm currently working on a ST32 chip and i'm coping with a little issue.My problem is that I need to know where are stocked my variables in the memory when i declare them in my main so that I c...

Code Protect

Posted on May 26, 2013 at 20:51Hello After I have finished my project I need to protect my code  from being read from JTAG or from serial bootloader , Could you guid me or show me how can I protect my code ? I am using keil . , STM32f407. Thank ...

sami by • Associate II
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  • 5 replies
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STM32F1 standby mode power consumption and noise

Posted on June 20, 2013 at 15:29Hi all, On my STM32F102R8T6 board, when the STM32 goes into standby mode, power consumption goes down to a few µA. But if I touch some pins of the STM32 with my finger or with a metal stick, power increases to severa...

Kuikui by • Associate III
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Interrupt generation on flash writes

Posted on June 20, 2013 at 15:05I recently extended the eeprom emulation code provided by ST to perform asynchronous page transfer when a flash page has no more space left. I need this feature because my embedded system runs in real time fashion (10...

STM32F0 CPAL I2C Slave

Posted on June 20, 2013 at 14:18 I have found strange behavior of CPAL library when device is in slave mode. I use interrupt mode. When I'm waiting for read from master, I prepare data by: if ((I2C2_DevStructure.CPAL_State == CPAL_STA...

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Posted on June 18, 2013 at 20:51The original post was too long to process during our migration. Please click on the attachment to read the original post.

High resolution and fast Quadrature encoders on STM32F4

Posted on June 13, 2013 at 04:22Dear everyone,I'm using STM32F407 and I'm using quadrature encoder which is high resolution linear scale and maximum 2Mhz pulse speed.When the encoder speed is over 400khz, the data is missing.I would like to know the...

kongisme by • Associate II
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  • 7 replies
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