About dkilshtein9

dkilshtein9 · 2015-05-04

Posted on May 04, 2015 at 10:15HiI need to store a single file on the board from a PC (with ST application via USB) then I need to be able to read the file back to the PC (with ST application via USB). In addition, I need to be able to transfer the ...

dkilshtein9 · 2013-04-25

Posted on April 25, 2013 at 10:53The original post was too long to process during our migration. Please click on the attachment to read the original post.

dkilshtein9 · 2013-03-17

Posted on March 17, 2013 at 17:37I'm working on a project where power consumption is a critical issue. I need to store a frame from a camera (OV2640) on the uSD each 2 seconds. My problem is that the camera's clock is always on which bring the power...

dkilshtein9 · 2013-01-20

Posted on January 20, 2013 at 18:12I need to be able to store ADC sample on a SD card. the sample rate is 200KHz.Since the buffer size register is limited to a maximum value of 0xffff I decided to use the DMA in a dual buffer mode and ADC in Continu...

dkilshtein9 · 2013-01-04

Posted on January 04, 2013 at 21:21I need to sample 2 ADC channels at a rate of 200KHz I also need to sample another ADC channel at a rate of kHz.Currently I use the same ADC (ADC3) for all 3 channels.During the initialization, I supply the DMA with...

dkilshtein9 · 2013-04-28

Posted on April 28, 2013 at 10:49Thank,I looked at the FIFO mode and from what I understand, the only different from the code I posted above, is the DMA_DoubleBufferModeConfig() function that should be disabled and the and the DMA_FIFOMode_Disable s...

dkilshtein9 · 2013-01-20

Posted on January 20, 2013 at 19:22Thanks, I think that a 32k buffer is not enough. Besides the 200khz ADC, I have two more ADC channels (sample rate of 12KHz) and a frame from a camera that I need to store each second. To achieve this I need more t...

dkilshtein9 · 2013-01-08

Posted on January 08, 2013 at 22:45Yes of course I meant kHz :)I have a big external RAM to store ADC samples (I have 3 ADC channels) and real time images.I just feel very insecure about the sample rate. I'm not sure that the code I posted above act...

dkilshtein9 · 2013-01-08

Posted on January 08, 2013 at 17:19I used the code bellow to initialize the ADC3 for a sample time of 200KHz using an external trigger.I initialize timer 3 and I also enabled the following interrupts (for debug purposes only):DMA2_Stream0_IRQHandler...

dkilshtein9 · 2013-01-08

Posted on January 08, 2013 at 12:40Thanks,First of all I use the __WFI() in the vApplicationIdleHook() function of FreeRTOS.Now, about the ADC + timer, what would be better to create a timer interrupt and call ADC_SoftwareStartConv(ADCx) from the ti...

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M24LR-DISCOVERY question

ADC data corruptiom

low power mode (snapshot) on OV2640

ADC sampling and storing on SD

ADC sampling rate

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