RTOS/AM5728: VIP loopback example fails

xiaoyan Chi

Part Number: AM5728

Tool/software: TI-RTOS

Hi ,

Our design is base on GPEVM5728.I tried idkAM5728 bootloader on our design .
When I tried vps loopback example ,it will print:

**** PDK SBL ****
**** Copying Application Image to DDR ****

SD Boot - File open fails
LOOPBACK_APP: Sample Application - STARTS !!!
hal/src/vpshal_dssDispcOvly.c @ Line 2828: DSS Still in reset

But it works fine when I use GPEVM gel to boot the board and run the vps_loopbackExample_idkAM572x_armExampleProject.out .

over 7 years ago

0 Biser Gatchev-XID over 7 years ago

TI__Guru**** 393215 points

The RTOS team have been notified. They will respond here.

0 lding over 7 years ago in reply to Biser Gatchev-XID

TI__Guru* 95265 points

Hi,

Sorry for the late response! What Processor SDK RTOS release you used for this test? The difference meant that GEL does extra than bootloader for the SOC initialization, especially for DSS.

In GEL, you have code like this:
prcm_set_clkdomain_state(DSS_CM_CORE, DSS_CM_CORE__CM_DSS_CLKSTCTRL, SW_WKUP );
prcm_set_dss_mode(DSS_CM_CORE, DSS_CM_CORE__CM_DSS_DSS_CLKCTRL, MODE_ENABLED);

You need add the same function into the bootloader.

Regards, Eric

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RTOS/AM5728: VIP loopback example fails