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Author: shabaz
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BBB - PRU C compiler

shabaz

Nice bit of information at this TI URL:

(My underlining below):

 

PRU Development

The Programmable Real-time Unit (PRU) is a low-latency microcontroller sub-system comprised of two or more 32-bit RISC processors, local instruction and data RAM, local peripherals and an interrupt controller. The PRU is efficient at handing events that have tight real-time constraints. The PRU is also known as the Industrial Communications Sub-System since it is used to enable industrial protocols such as EtherCATÂRegistered, EtherNet/IPâ„¢, PROFINET, PROFIBUS, POWERLINK, SERCOS III, and others. Each 32-bit processor runs at 200MHz, enabling 5ns instruction cycle. Local peripherals within the PRU sub-system include UART, eCAP, MII_RT, MDIO and IEP. The PRUâ€Tms fast input and output pins enable detection and reaction to I/O events within two PRU cycles.

Code Composer Studio provides a C compiler enabling users to add differentiation to their products.

 

(Downloading now! )

 

Anonymous

  • Is there any need to install code composer studio in beagleboneblack..as i m getting error in beaglebone when i m trying to executing following command to build:

     

    ../blinkLED# make

     

     

    ************************************************************

    Building project: blinkLED

     

     

    Building file: blinkLED.c

    Invoking: PRU Compiler

    /usr/bin/clpru --include_path=/usr/lib/ti/pru-software-support-package/include --include_path=/usr/lib/ti/pru-software-support-package/include --include_path=/usr/lib/ti/pru-software-support-package/include/am335x -v3 -O2 --display_error_number --endian=little --hardware_mac=on --obj_directory=gen --pp_directory=gen -ppd -ppa -fe gen/blinkLED.object blinkLED.c

    "blinkLED.c", line 37: fatal error #1965: cannot open source file "stdint.h"

    1 catastrophic error detected in the compilation of "blinkLED.c".

    Compilation terminated.

     

     

    >> Compilation failure

    make: *** [Makefile:80: gen/blinkLED.object] Error 1

  • in reply to Former Member

    In case anyone comes across this question, I noticed that while installing the Code Composer Studio, at least the Sitara 32-bit ARM Processors compilers should be selected, since the BeagleBone SoC is from this family of processors.

  • in reply to verminsky

    Hi Verminsky,

     

    I've had no time to dig further unfortunately, but I noticed Fabien has written up steps on how to use the C compiler.

    Hopefully this will help.

  • in reply to shabaz

    I still have had no success generating a working, single xxx.bin file from the PRU compiler, that can be loaded and executed using the LinuxApplicationLOader from the am335xxxPRU master files on github.  I downloaded CCSv6 and from what I can tell, CCS expects one to use an outboard JTAG debugging tool and CCS to download to separate .text and .data .bin files into the actual PRU memory.

     

    Admittedly, my lack of knowledge is preventing me from truly understanding some of this, but in the past, I have been successful using the AM335xxx Github Linux Appliction loader and PASM to get a simple gpio toggling app going.

     

    Have ou had any time to delve into the ti compiler any further?    Thanks

  • in reply to verminsky

    Hi Verminsky,

     

    Unfortunately I've not had a chance to do this, but being a bit familiar with the PRU assembler instructions, it did look like the compiler was generating valid assembler (example assembler listing is in the comments above), so I'm fairly sure it should work. I'll post back when I get a chance to try this out, but it may not be for a week or two : (