AM5728: Can I use two timers on DSP1?

Feng Dong

Part Number: AM5728
Other Parts Discussed in Thread: SYSBIOS

My application need to use timer5 and timerX on DSP1, which use timer6 on DSP2, and I would prefer to disable IPU1&2， but question is how to assign the timer11 to DSP1 on linux DTS side?

Thanks!

&ipu1 {
status = "disable";
//timers = <&timer11>;
//watchdog-timers = <&timer7>, <&timer8>;
timers = <>;
watchdog-timers = <>;
};

&ipu2 {
status = "disable";
timers = <>;//<&timer3>;
watchdog-timers = <>;//<&timer12>, <&timer9>;
};

&dsp1 {
status = "okay";
memory-region = <&dsp1_cma_pool>;
mboxes = <&mailbox5 &mbox_dsp1_ipc3x>;
//timers = <&timer5>;
//timers = <&timer5>, <&timer6>;
timers = <&timer5>, <&timer11>;
//timers = <&timer5>, <&timer9>;
watchdog-timers = <&timer10>;
};

&dsp2 {
status = "okay";
memory-region = <&dsp2_cma_pool>;
mboxes = <&mailbox6 &mbox_dsp2_ipc3x>;
timers = <&timer6>;
//timers = <&timer12>, <&timer9>;
watchdog-timers = <&timer13>;
};

over 1 year ago

0 Josue Zamitiz-Ayala over 1 year ago

TI__Mastermind 31424 points

Hello Feng,

Please see the following post: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/634017/rtos-am5728-timer-control-from-dsp

-Josue

0 Feng Dong over 1 year ago in reply to Josue Zamitiz-Ayala

Intellectual 550 points

Hi Josue,

It is a little bit of difference from the post.

I need run both DSP1 and DSP2, and on DSP1, I need Timer5 and Timer11(just different from Timer5,Timer6)

I tried TimerSupport module as below, but did not succeed to TimerCreate(10,...) as I expected, through, I also configure the DSP1 with timer5, timer11 on linux DTS.

var IntXbar = xdc.useModule('ti.sysbios.family.shared.vayu.IntXbar');
var TimerSupport = xdc.useModule('ti.sysbios.family.shared.vayu.TimerSupport');

TimerSupport.availMask = 0xFFFF;

Would you please show me how to change the default assignment of timer?

I could disable IPU1&2, which is assigned with timer9.

0 Feng Dong over 1 year ago in reply to Feng Dong

Intellectual 550 points

5531.ex02_messageq_V2_src.zip

If I need to assign Timer15 to DSP1, and Timer16 to DSP2, what should I do?

1. Update &dsp1, $dsp2 in Linux DTS

2.DSP cfg file TimerSupport.availMask(), IntXbar.connectMeta() call, and make sure the setting map to the DTS, no overlap or conflict, right?

0 Josue Zamitiz-Ayala over 1 year ago in reply to Feng Dong

TI__Mastermind 31424 points

Feng.

Answer to the over-all question is Yes, you can use two timer on DSP1.

1. Correct

2.need to confer with a fellow engineer. Please allow some time for me to answer.

-Josue

0 TommySong 9 months ago in reply to Josue Zamitiz-Ayala

TI__Genius 9520 points

Since there is no activity for more than 6 months, please let us know whether this is still a problem.

Br, Tommy

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AM5728: Can I use two timers on DSP1?