Hi Pedro, nice :)
Em ter., 19 de jan. de 2021 às 00:29, Pedro Henrique Fonseca Bertoleti < [email protected]> escreveu: > Vinicius and Gehard, thank you very much for your help! > > I'm able to communicate (through shared memory) PRU0 and host (Linux) > side. It worked really well! > > > > Em seg, 18 de jan de 2021 12:47, Vinicius Juvinski < > [email protected]> escreveu: > >> Hi Pedro, >> >> Yes >> >> Sent from my iPhone >> >> >> Em 18 de jan. de 2021, à(s) 12:06, Pedro Henrique Fonseca Bertoleti < >> [email protected]> escreveu: >> >> >> Vinicius, have you meant 0x4A300000 + 0x1000 as the frist shared mem >> address to be used? >> >> Em seg, 18 de jan de 2021 11:50, Vinicius Juvinski < >> [email protected]> escreveu: >> >>> One detail, >>> >>> If I not wrong, the first 100 bytes of the dram is used by pru for some >>> configs, register and other stuffs I don't remember right now, so you >>> should use BASE Address +1000 at least >>> >>> >>> >>> https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf?ts=1610923856664 - >>> section 4.3 details the memory usage from PRU. >>> >>> >>> >>> >>> Em seg., 18 de jan. de 2021 às 10:14, Gerhard Hoffmann < >>> [email protected]> escreveu: >>> >>>> Hi, >>>> >>>> just for the mapping, you won't need most of the include files. >>>> >>>> I often include xyz.h in xyz.c so that I get at least a warning when I >>>> change >>>> >>>> sth. so that the public promises in .h no longer hold. >>>> >>>> pru_if.h is in the post but not needed. >>>> >>>> Remove the includes and the compiler will tell you what is missing. >>>> >>>> You definitely don't need ltcsrv.h and the stuff for nice(). >>>> >>>> >>>> - A file descriptor must be used for /dev/mem: >>>> >>>> >>>> int dev_mem_fd; >>>> dev_mem_fd = open("/dev/mem",O_RDWR | O_SYNC); >>>> >>>> >>>> - Shared RAM is mapped (prepared for use) by this line: >>>> >>>> >>>> shared_ram = (int *) mmap(NULL, 12*1024, PROT_READ | PROT_WRITE, >>>> MAP_SHARED, dev_mem_fd, 0x4A300000 + 0x10000); >>>> >>>> >>>> - Here follows examples of usage (in this case, writing to shared >>>> ram memory): >>>> >>>> >>>> shared_ram[0] = ... ; //write to 0x4A310000 >>>> shared_ram[1] = ... ; //write to 0x4A310004 >>>> shared_ram[1] = ... ; //write to 0x4A310008 >>>> >>>> ^!! >>>> >>>> >>>> Am I right? >>>> >>>> Yes. >>>> >>>> I should have snipped a lot of text, but was only half awake. >>>> >>>> Cheers, Gerhard >>>> >>>> >>>> >>>> -- >>>> For more options, visit http://beagleboard.org/discuss >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "BeagleBoard" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/beagleboard/32141ab3-a346-b184-90bc-5c9bc810d169%40hoffmann-hochfrequenz.de >>>> <https://groups.google.com/d/msgid/beagleboard/32141ab3-a346-b184-90bc-5c9bc810d169%40hoffmann-hochfrequenz.de?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/beagleboard/CAB6xwCr%3DA6UKZ0z8SJQyNPRxCdb0%3DPvBfQx_%3DA-g86j4gqj%2BQA%40mail.gmail.com >>> <https://groups.google.com/d/msgid/beagleboard/CAB6xwCr%3DA6UKZ0z8SJQyNPRxCdb0%3DPvBfQx_%3DA-g86j4gqj%2BQA%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/CAJK9pqedmY%2B75GshLrqT02%3DLFQMTPNR202B3Q7%2BY0WPido%3Dujg%40mail.gmail.com >> <https://groups.google.com/d/msgid/beagleboard/CAJK9pqedmY%2B75GshLrqT02%3DLFQMTPNR202B3Q7%2BY0WPido%3Dujg%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/3D583BDE-10DB-4106-A60B-54C3D8FAC3A8%40gmail.com >> <https://groups.google.com/d/msgid/beagleboard/3D583BDE-10DB-4106-A60B-54C3D8FAC3A8%40gmail.com?utm_medium=email&utm_source=footer> >> . >> > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/beagleboard/CAJK9pqewB0pzx8H%2B%2B1s-BoJwmYzNUy8eFiFr6Sv28_W4T%3DhCYw%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CAJK9pqewB0pzx8H%2B%2B1s-BoJwmYzNUy8eFiFr6Sv28_W4T%3DhCYw%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. 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