Compiler/PROCESSOR-SDK-DRA8X-TDA4X: UDMA : ERROR: TR Response not completed

user1372486

Part Number: PROCESSOR-SDK-DRA8X-TDA4X

Tool/software: TI C/C++ Compiler

I want copy data from DDR to L2 SRAM.
 
I got error like this: "UDMA : ERROR: TR Response not completed".
 
I print "trRespStatus" and got value 1.
The following is my fuction and prms_1d.dest_addr = 0x800000
int32_t dmaCopyFromDDR2L2(void *chDmaObj,uint8_t *addrDDR,uint8_t *addrL2,uint32_t length)
{
app_udma_copy_1d_prms_t prms_1d;

appUdmaCopy1DPrms_Init(&prms_1d);
 
prms_1d.dest_addr = appMemGetVirt2PhyBufPtr((uint64_t) addrL2, HEAPID_APP_MEM_HEAP_L2);
prms_1d.src_addr = appMemGetVirt2PhyBufPtr((uint64_t) addrDDR, HEAPID_APP_MEM_HEAP_DDR);
prms_1d.length = length;
VX_PRINT(VX_ZONE_INFO, "prms_1d.dest_addr = %x\n",prms_1d.dest_addr);
 
appUdmaCopy1D(NULL, &prms_1d);

return 1;
}

over 5 years ago

0 Brijesh Jadav over 5 years ago

TI__Guru**** 477195 points

Hi,

There seems to be some transfer error. Can you please get complete TR response and share it?

Rgds,

Brijesh

0 user1372486 over 5 years ago in reply to Brijesh Jadav

Prodigy 110 points

Thanks for your reply.

The value of TR response is 0x250011(*TrResp).

0 Brijesh Jadav over 5 years ago in reply to user1372486

TI__Guru**** 477195 points

Hi,

It seems there is a read error. Are your addresses all valid for L2 and DDR location? Could you please double check?

Could you please share your L2 and DDR location?

Rgds,

Brijesh

0 user1372486 over 5 years ago in reply to Brijesh Jadav

Prodigy 110 points

Hi,

How can i check the location is valid ?

DDR location : 0xd405ed00

L2 location : 0x008xf000

BR,

0 Brijesh Jadav over 5 years ago in reply to user1372486

TI__Guru**** 477195 points

Hi,

I mean, can you connect CCS and try to access both of these location from CCS memory window?

Rgds,

Brijesh

0 user1372486 over 5 years ago in reply to Brijesh Jadav

Prodigy 110 points

Hi,

I did some tests:

1. Using same DDR address and L2 address,i copy data from DDR to L2 by CPU(use memcpy()) and it work well.

-- Proof of DDR location and L2 location are valid.

2. Using same DDR source-address and another DDR destination-address,i copy data from DDR to DDR by UDMA and it work well.

-- Proof of my usage of UDMA is correct.

Do you have other suggestions !

BR,

0 Brijesh Jadav over 5 years ago in reply to user1372486

TI__Guru**** 477195 points

Hi,

Can you try running same memcpy example from some other core? I just want to see if the L2 address is system address or local to the core..

Regards,

Brijesh

0 user1372486 over 5 years ago in reply to Brijesh Jadav

Prodigy 110 points

Hi,

I find a definition in file cslr_soc_baseaddress.h

#define CSL_C66SS0_VBUSP_CFG_PBISTCFG_BASE (0x4d80000000ULL)

I fix the error by adding offset 0x4d80000000 to L2 address(0x4d80000000+0x80000) .

It seems work well ,but i want to know If there are official user guides for fuctions and definitions for specific features;

Thanks you very much !

BR,

0 Brijesh Jadav over 5 years ago in reply to user1372486

TI__Guru**** 477195 points

Hi,

I am sorry i did not get question.

System address of this L2 memory should be part of the TRM. Could you please check it?

Regards,

Brijesh

0 user1372486 over 5 years ago in reply to Brijesh Jadav

Prodigy 110 points

Hi,

I found the reason of my error.

My L2 memory address is not system address,so I add an system address offset to my L2 address and the UDMA work well now.

Thank your !

BR,

0 Brijesh Jadav over 5 years ago in reply to user1372486

TI__Guru**** 477195 points

ok, good to know. I am closing this thread.

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Compiler/PROCESSOR-SDK-DRA8X-TDA4X: UDMA : ERROR: TR Response not completed