PCI support in simulator for TMS320C6678

muhammad wajid

Other Parts Discussed in Thread: SYSBIOS

Hi all,

Basically I want to run a basic demo program in TI mcsdk_video package using MAILBOX with TI-Simulator for C6678 juz for understanding working of mailbox.

But when I run demo_loopback program provided in mcsdk_video , it Got stuck at opening mailBox,

Yes mailbox is created successfully, after it tries to open mailbox but it moves in loopback and does not come out from open_mailBox function. I am expecting it to come out from that function and proceed to next step, whatever intended to do.

I have three question here,

Does TI-Simulator have the support for pci for C6678 to use mailbox ????

Does mailBox concept (mailbox read or write ) blocking or non blocking. ??

Does mailBox support interrupt ? i think NO as per code or supporting Interrupt in latest mcsdk_video as i am using old version of mcsdk_video. ???

over 12 years ago

0 desouza over 12 years ago

TI__Guru**** 171094 points

Hi,

Unfortunately I am not the most expert in the simulators, but by looking at the User's Guide below it states the PCIe peripheral registers are supported.

http://processors.wiki.ti.com/index.php/TCI6616/C6670/TCI6608/C6678/TCI6618_Device_simulator_User_Guide

However, that does not mean the actual data transfers to and from the PCIe bus are modeled, which may be important if your mailboxes are configured to not timeout and thus they will block the current running task (check sections 3.5.2 and 4.4 of SYSBIOS 6.35 User's Guide). Also, the functions pend/post can't be called from interrupts unless their timeout is zero (check the BIOS API guide for ti.sysbios.knl.Mailbox in the CCS help).

To implement a PCIe transfer, you could potentially use either the Pin Connect or Port Connect features (check the Simulation category below for details on these two features), but that will be a very involving job.

http://processors.wiki.ti.com/index.php/Category:Simulation

Hope this helps,

Rafael

0 muhammad wajid over 12 years ago in reply to desouza

Prodigy 110 points

Hi Rafael,

Thank, it is helpful.

Muhammad

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PCI support in simulator for TMS320C6678