Thursday, December 5, 2013

OpenMV Update: 25FPS Face Detection, USB Support and More

So I've been working on OpenMV for the past week and this is what I have so far: USB Support: The camera now supports USB OTG full speed, I've also written a small userspace tool with libusb/SDL to interface with the camera and view the frame buffer, this makes it really easy to debug the image processing code, and it also lets you change the sensor's registers while watching the results in realtime. I've mentioned...
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Monday, December 2, 2013

Using The CCM Memory on the STM32

The STM32 series have non-contiguous memories divided into blocks, for example the STM32F4, has 2 (contiguous) blocks of SRAM connected to the bus matrix with different interconnects, and a Core Coupled Memory (CCM) block which is connected directly to the core. This tight coupling of the CCM memory to the core, leads to zero wait states, in other words, the core has exclusive access to...
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