Posted on April 03, 2013 at 11:27Hello, i run in to a problem, where i need to do math with single precision floating point. it looks like if(...) condition, and printing floating point to uint16_t is very slow. so i have two questions: first, what ...
Posted on March 31, 2013 at 20:24
Hello, i have CLK which is generated by ADC, and i need to generate SI signal as shown in this picture. I used software version, but it is very unstable, and if i recompile that, it can completely mess up t...
Posted on February 10, 2013 at 20:24
Hello, i am working on labview communication with bluetooth module driven by STM32F4, and some how i can't make it work.
I can easy send data to labview, but not other way around, i have no idea where pro...
Posted on February 05, 2013 at 09:46Hello, I have 16b parallel bus, 8MHz adc, and I need to read as fast as I can data to memory array which is 128 point long. So far I overclocked stm32f4 to 250MHz so I could do it faster. Original code is :while(i...
Posted on November 28, 2012 at 19:38hello Does any one know how to send sound data to headphone DAC on CS43L22 ? main goal is to read data from mic, that use convolution with my low pass filter coefficients, and then send data to headphones. Somehow...
Posted on April 14, 2013 at 21:49 i don't use VISA, i use blue-tooth functions. it even start to search bluetooth module, and do all good stuff. change just address of device (you can found it in device section)
________________
Attac...
Posted on April 04, 2013 at 12:35it is laser stabilization loop, and it works very well (just tested) u16 and u32 is slower , only u8 is fast. I don't know about stm32f4 core, but some dsp can take several commands at one cycle, like 128b for comman...
Posted on April 04, 2013 at 05:45
From: clive1
You have 'i' as an 8-bit unsigned integer don't you? Why?
what else i can use ? it's only one bite longer than i need
Also toggle takes one command longer to do .it need to make EOR.
Posted on April 03, 2013 at 22:58
Last trick:
i divided main while(i<128) loop to 8 blocks (8*16=128) and speed goes to 5537KHz,
while(i<128)
{
//TODO
i++;
//TODO
i++;
//TODO
i++;
//TODO
i++;
/*--------------*/
//TODO
i++;
}
and...
Posted on April 03, 2013 at 21:00
I have linear 128 point fotodiode array (128 pixels) running at 8MHz read speed for pixel. Also have ADC board controlled by FPGA to make A to D conversion at 16b resolution.
ADC boar is connected to FIF...
