PSR December 2016

psr@rtime.felk.cvut.cz

7 participants
8 discussions

Hardware moved for holidays to KN:E-2 and optional shared memory VxWorks image on PowerPC
by Pavel Pisa 21 Dec '16

21 Dec '16

Dear students, we have moved the processor boards and motors to the computer laboratory KN:E-2. The hardware remains there until the first seminaries in 2017. The room KN:E-2 at Karlovo namesti is accessible to students without supervisor. If it is locket, ask gatekeeper politely to open it for you. The key for storage locker is available from the gatekeeper as well. Shared memory on PowerPC MIDAM boards Some students designed semestral work as separated motion controller and monitoring application running in separated address spaces- The control part designed as Kernel Loadable Module and TCP communication as separated Real Time Process. That is right approach for professional application for sure but we do not expect such architecture from you. The time is limited etc. Separated threads in a single Kernel Loadable Module are fully fulfilling our expectations. But for these who has tried more secure and isolated solution, we have prepared VxWorks kernel image with shared memory support option enabled during build. It is not booted by default. If you want to check this option then break boot process after the board reset. There is special delay and counting seen on the serial console. Press enter at that time. Then run/copy paste next commands line by line (some delay between lines may be required) dhcp mw f0000b00 ${psc_cfg} tftp 0x100000 vxworks/vxWorks-midam-shm.bin-6.9 go 0x100000 You have to select alternative/corresponding kernel image file with symbols when you create target connection /opt/psr/vxWorks-midam-shm-6.9 Then you can create shared memory regions, mesage-queues and POSIX threads. I suggest these experiments only to these students who are ahead of time with their project and have interest to learn and experiment more than is goal and purpose of the subject. We are happy to support such people. I have done some but minimal testing of the image. I have only checked that semOpen, shm_open and mmap links OK and does not throw error in the both, RTP and KLM. It is possible that there is some unnoticed problem and I do not have time to correct such problem now. So option is available for brave souls with time reserve for backup solution and without guarantee of any kind. If you use this option successfully or notice show stopper problem, it would be nice if you send info to the PSR list. I wish you to enjoy your work, spent holidays hapilly and keep strong health now and in the future, Pavel Pisa

1 0

Hardware access in KN:E-2
by Michal Sojka 18 Dec '16

18 Dec '16

Dear students, as we announced, we have made available 4 boards and motors in room KN:E-2 for you to work at any time. The room is located at Karlovo namesti and is accessible whenever the university is open, which includes even weekends. The keys from the locker are available at building E reception desk. If the whole room is locked, you can ask the reception guy to open it. Currently, there are only 4 Ethernet cables available in the room - look for yellow cables at the back sides of the room. The boards will be available in the room today, until 8 PM. Tomorrow, Mr. Hubacek will bring them to H131. Starting from Sunday, the 4 boards will be again in E2. We will temporarily move them to H131 on Wednesdays for exercises. If you encounter any problems with the boards, motors etc., please let us know immediately so that we can fix the problems quickly. Best regards, -Michal Sojka

4 7

problem with git
by jacques valentin 13 Dec '16

13 Dec '16

Hello I have some problem to push my first version of code on the git repository of my colleague. Does the deadline is today or can I ask tomorrow about this problem? Regards Jacques Valentin

2 1

H1-131 access
by bc. Jiri Valasek 12 Dec '16

12 Dec '16

Good evening, I'd like to ask if it would be possible to gain access to H1-131 tomorrow any time after 12:30. Of course, it would be better to get full access with card, because there is plenty of time when the classroom is not used, but we cannot use it without card access (such as today after 16 PM). Thank you Regards, Jiri Valasek --- Tato zpráva byla zkontrolována na viry programem Avast Antivirus. https://www.avast.com/antivirus

3 2

T2:H1-131 access on Saturday, Dec 17 from 9am till 5pm
by jiri hubacek 12 Dec '16

12 Dec '16

Dear students, because of persisting problems with lab access, I will be in the room T2:H1-131 in hall labs at Dejvice on Saturday, Dec 17 from 9am till 5pm. The lab will be accessible in that time. Have a nice day, Jiri Hubacek

1 0

T2:H1-131 access on Saturday, Dec 10 from 9am till 5pm
by jiri hubacek 07 Dec '16

07 Dec '16

Dear students, because of persisting problems with lab access, I will be in the room T2:H1-131 in hall labs at Dejvice on Saturday, Dec 10 from 9am till 5pm. The lab will be accessible in that time. Have a nice day, Jiri Hubacek

1 0

Re: [PSR] task 6 build problem
by Michal Sojka 04 Dec '16

04 Dec '16

Dobrý den, (nepřeposlal jsem váš mail do konference, protože si myslím, že ne každý je zvědavý na 2MB přílohu) On Fri, Dec 02 2016, mathipet(a)fel.cvut.cz wrote: > From: mathipet(a)fel.cvut.cz > Subject: task 6 build problem > To: psr(a)rtime.felk.cvut.cz > Date: Fri, 02 Dec 2016 16:34:42 +0100 > > Dobry den, > > mame problem s buildovanim ulohy 6. Po nastaveni projektu ako je to v > popise zadania ulohy je problem aj s "Hello world" kodom, vyhodi to > vela errorov v include suboroch, viz prilozeny obrazok alebo vypis > nizsie: > Neviete kde by mohol byt problem? > > Dakujem > > > > "/opt/WindRiver/vxworks-6.9/target/h/drv/intrCtl/m5200Intr.h", line > 193: error (etoa:4020): identifier "VOIDFUNCPTR" is undefined > VOIDFUNCPTR vec; /* interrupt vector */ > ^ > "/opt/WindRiver/vxworks-6.9/target/h/drv/intrCtl/m5200Intr.h", line > 201: error (etoa:4020): identifier "IMPORT" is undefined > IMPORT STATUS m5200IntrInit (void); > ^ > "/opt/WindRiver/vxworks-6.9/target/h/drv/intrCtl/m5200Intr.h", line > 201: error (etoa:4065): expected a ";" > IMPORT STATUS m5200IntrInit (void); > ^ > "/opt/WindRiver/vxworks-6.9/target/h/drv/intrCtl/m5200Intr.h", line > 202: warning (etoa:4077): this declaration has no storage class or > type specifier > IMPORT int m5200IntrSetLevel(int, int); > ^ Problém je v tom, že zmíněné hlavičkové soubory "neincludují" soubory s potřebnými definicemi. Bývá zvykem, konstruovat hlavičkové soubory tak, aby nezáleželo na pořadí jejich includování, ale u WindRiverů tento zvyk asi nectí. Tudíž je potřeba includovat patřičné hlavičkové soubory ručně, před includováním lite5200b.h. Ve vašem případě stačí includovat stdio.h jako první a ne až jako poslední. S pozdravem -Michal Sojka

1 0

T2:H1-131 access on Monday, Dec 5 from 16:15 till 19:30
by jiri hubacek 02 Dec '16

02 Dec '16

Dear students, because of persisting problems with lab access, I will be in the room T2:H1-131 in hall labs at Dejvice on Monday, Dec 5 from 16:15 till 19:30. The lab will be accessible in that time. Have a nice day, Jiri Hubacek

1 0

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PSR December 2016