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Is the BeagleBone Pru a real time unit?
BeagleBone Programmable Real-time Unit This is also called the PRU Subsystem (PRUSS) or PRU and Industrial Controller Subsystem (PRU-ICSS). It is optimized to perform embedded tasks that require real-time constraints. Most important is the purssdrv library to expose functions to the PRU.
Do you need to enable rproc for BeagleBone Pru?
Setting Up The Kernel beagleboard.org’s images are cleverly put together, in that they include both rproc and UIO support for the PRUs by default. Only one of these can be used at a time though, so we need to enable rproc by modifying the “Device Tree Blob” in use.
How to load purssdrv library on BeagleBone?
Most important is the purssdrv library to expose functions to the PRU. You can load this library by typing modprobe uio_pruss. The PRU has dual 32-bit RISC cores, shared data and instruction memories and an interrupt controller (INTC). There is no pipelining done on the processor and there are 29 (r1-r30) registers to use.
What kind of microcontroller does the BeagleBone have?
This chip contains an ARM processor as well as two 32-bit microcontrollers called PRUs. The nice thing about using the PRU microcontrollers on the BeagleBone is that you get both real-time Arduino-style control, and “real computer” features such as a web server, WiFi, Ethernet, and multiple languages.
What are the Prus on the Beagle Board?
The summary introduction to the chapter is as follows: The Beagle board AM335x SoC contains two programmable real-time units (PRUs) that can be used for certain real-time operations, and these are the focus of this chapter.
What is the omission in the BeagleBone code?
The omission is “ fragment@0 { target = <&am33xx_pinmux>; __overlay__ { ” after the line that begins “exclusive-use”. On page 524 there is a confusing constant name in the code example — GPIO_DATAOUT should more correctly be labelled GPIO_DATAIN.
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