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Original question:

AM6548: ICSSG PRU Task Manager

AM6548: AM6548: ICSSG PRU Task Manager task swapping is not work

Stamp Huang
Prodigy 60 points
Part Number: AM6548

My task manager is not working.

The symptom is the same with this discussion - https://e2e.ti.com/support/processors-group/processors/f/processors-forum/882551/am6548-icssg-pru-task-manager

I implemented my code in c, but the solution is assembly.

How can I enable TSEN?  Is that a register?

  • 0
    Prodigy 60 points

    Below is my code to set task manager.

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    /* disable swap mode */
    CT_TM_PRU1.global_cfg_bit.tasks_mgr_mode = 0x0;
    /* disable TS2_S0*/
    CT_TM_PRU1.global_cfg_bit.ts2_en_s0 = 0x0;
    CT_TM_PRU1.global_cfg_bit.ts1_en_s0 = 0x0;
    /* TS2_S0 set source event as IEP1 cmp0*/
    CT_TM_PRU1.ts2_gen_cfg1_bit.ts2_gen_s0_mx = 40;
    CT_TM_PRU1.ts1_gen_cfg1_bit.ts1_gen_s0_mx = 40;
    /* TS2_S0 set subroutine as Send_Pulse_task*/
    CT_TM_PRU1.ts2_pc_s0_bit.ts2_pc_s0 = (uint32_t)Send_Pulse_task;
    CT_TM_PRU1.ts1_pc_s0_bit.ts1_pc_s0 = (uint32_t)Send_Pulse_task;
    /* enable TS2_S0*/
    CT_TM_PRU1.global_cfg_bit.ts2_en_s0 = 0x1;
    CT_TM_PRU1.global_cfg_bit.ts1_en_s0 = 0x1;
    /* set TASKS_MGR_MODE=General_HW */
    CT_TM_PRU1.global_cfg_bit.tasks_mgr_mode = 0x2;
    XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

  • 0 in reply to Stamp Huang
    TI__Genius 14325 points

    Hi Vineet:

    May you help to reply this questions?

    BR Rio

  • 0 in reply to Stamp Huang
    Prodigy 60 points

    Additional comment:

    1. My PRU compiler v2.3.3, the TSEN instruction will cause build fail.

    2. The task manager will not work in the first time setting register.  It will start running after restarted my code.

    3. After my subroutine finished and back to my background task, the PC is strange. (Maybe it is caused by restarted code)

  • 0 in reply to Stamp Huang
    TI__Mastermind 37435 points

    Hi,

    Is it possible to provide your entire code and build environment so I can reproduce at my end ? As you said, it does work in assembly and even the MAC on AM65 is using it, so there is no problem with it as such.

    Regards

    Vineet

  • 0 in reply to Vineet Roy
    Prodigy 60 points

    Hi Vineet,

    The attachment is my entire code.

    If there is any suggestion, please let me know.

    PRUTest.zip

  • 0 in reply to Stamp Huang
    TI__Mastermind 37435 points

    Hi Stamp,

    We discussed this internally and we cannot support any custom C or Assembly code/development on the PRU. Going forward we will only support existing Ethernet based firmwares which are already released via SDK on TI.com.

    Regards

    Vineet