RTOS/TDA2PXEVM: Example code of USB mass storage device and tftp client in TI RTOS

HJ Kim

Part Number: TDA2PXEVM

Tool/software: TI-RTOS

Hi,

I couldn't find examples of UMS or tftp client of TI RTOS in vision sdk.
They are necessary for firmware update when using eMMC or SD card as a main storage.
Can you provide the example?

Thanks.
HJ Kim

over 5 years ago

0 Anuj Gupta over 5 years ago

TI__Genius 15985 points

HI,

TI supports only TCP and TFDTP(UDP) protocol only.

Regards,
Anuj

0 HJ Kim over 5 years ago in reply to Anuj Gupta

Expert 1460 points

Hi Anuj,

Is it possible to update firmware at SBL stage by USB?
It is very inefficient to extract SD card at every update.

Thanks.
HJ Kim

0 Rishabh Garg over 5 years ago in reply to HJ Kim

TI__Guru 55685 points

Hi Kim,

You can use mflash and update QSPI firmware via UART.
Unfortunately we don't have any RTOS software that can update firmware via USB.

Regards,
Rishabh

0 HJ Kim over 5 years ago in reply to Rishabh Garg

Expert 1460 points

Hi Rishabh,

Is it possible updating firmware via ethernet after booting?
Can you provide example source code of it?

Thanks.
HJ Kim

0 Rishabh Garg over 5 years ago in reply to HJ Kim

TI__Guru 55685 points

Hi Kim,

Yes this is possible.
Please see PROCESSOR_SDK_VISION_03_06_00_00\vision_sdk\apps\tools\network_tools\docs\VisionSDK_UserGuide_NetworkTools.docx.

Regards,
Rishabh

0 HJ Kim over 5 years ago in reply to Rishabh Garg

Expert 1460 points

Hi Rishabh,

Ok, SD image update via ethernet is working.

But the final target is eMMC not SD.
eMMC booting worked after adding initialization of eMMC (MMC2_INST) in sbl.

How can I use eMMC instead of SD after rtos booting?
AppImage is updated in SD when ethernet tool is used. I'd like to change SD to eMMC.

Thanks.
HJ Kim

0 Rishabh Garg over 5 years ago in reply to HJ Kim

TI__Guru 55685 points

Hi Kim,

Sorry I did not understand the objective.
We don't have RTOS SBL for eMMC, are you using linux?

Regards,
Rishabh

0 HJ Kim over 5 years ago in reply to Rishabh Garg

Expert 1460 points

Hi Rishabh,

I am currently developing boot and firmware updating for eMMC RTOS in TDA2Px EVB
Our custom board has only eMMC as storage.

Booting from eMMC is ok, and firmware updating is under developing.
Firmware updating using ethernet in RTOS is necessary.

There is some DAM errs when eMMC is used and ethernet firmware update is used. DMA number for eMMC was assigned correctly as TX=46 & RX=47.

[IPU1-0] 67.171475 s: Assertion @ Line: 103 in file_api_dma.c: edma3Result==EDMA3_DRV_SOK : failed !!!
[IPU1-0] 67.171872 s: Assertion @ Line: 103 in file_api_dma.c: edma3Result==EDMA3_DRV_SOK : failed !!!

Thanks.
HJ Kim

0 Rishabh Garg over 5 years ago in reply to HJ Kim

TI__Guru 55685 points

Hi Kim,

Vision SDK RTOS does not support eMMC.
There is one example here that you can refer to: PROCESSOR_SDK_VISION_03_06_00_00\ti_components\drivers\pdk_01_10_02_07\packages\ti\csl\example\mmcsd\mmc_raw_access\main.c.
Documentation is here: processors.wiki.ti.com/.../PDK_TDA_CSL_User_Guide
For the EDMA error can you use CCS to check what exactly is happening.
How are you allocating EDMA channels?

Regards,
Rishabh

0 HJ Kim over 5 years ago in reply to Rishabh Garg

Expert 1460 points

Hi Rishabh,

EDMA channels were automatically allocated by using MMC2_INST instead of MMC1_INST as below

file_api.c File_init(MMC2_INST) -> HSMMCSDInit(MMC_INST_t num) -> HSMMCSDControllerSetup(MMC_INST_t num)

Are EDMA resources for eMMC not initialized in RTOS? If not, how to prepare them?

Thanks,
HJ Kim

0 Shiju Sivasankaran over 5 years ago in reply to HJ Kim

TI__Genius 13395 points

Hi HJ Kim
Try set FATFS_PROC_TO_USE to the proper core (from where you want to access MMC).
supported cores are
- IPU1_0
- IPU2
- A15_0)
you can use any one of this core,
File_init() API works only when you set FATFS_PROC_TO_USE

regards, Shiju

0 HJ Kim over 5 years ago in reply to Shiju Sivasankaran

Expert 1460 points

Hi Shiju,

I think configuration of FATFS_PROC_TO_USE should be ok.
Ii was assigned to IPU1_0 as below.

vision_sdk/build$ make showconfig | grep FATFS_PROC_TO_USE
# FATFS_PROC_TO_USE=ipu1_0 [options: ipu1_0 none]

If SD (MMC1_INST) was used , it worked well.
But eMMC (MMC2_INST) was used, there was dma alloc failure as below.

IPU1-0] 67.171475 s: Assertion @ Line: 103 in file_api_dma.c: edma3Result==EDMA3_DRV_SOK : failed !!!
[edma3Result = EDMA3_DRV_requestChannel() ]

I assume that there are some issues at configuration of EDMA resources.

Regards,
HJ Kim

0 Shiju Sivasankaran over 5 years ago in reply to HJ Kim

TI__Genius 13395 points

Hi Kim
In VSDK we never tried eMMC and I doubt we support RTOS fatFs with eMMC driver.
You need to integrate eMMC with file_api.c instead of MMC to support eMMC

regrads, Shiju

0 HJ Kim over 5 years ago in reply to Shiju Sivasankaran

Expert 1460 points

Hi Shiju,

Thanks a lot for your support.
The title of this thread is different from current issues.

I'd like to open a new thread as "EDMA3 alloc problem for eMMC of TDA2Px RTOS"
https://e2e.ti.com/support/processors/f/791/t/784890

Regards,
HJ Kim

0 Rishabh Garg over 5 years ago in reply to HJ Kim

TI__Guru 55685 points

Hi Kim,

I am closing this thread.

Regards,
Rishabh

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RTOS/TDA2PXEVM: Example code of USB mass storage device and tftp client in TI RTOS