CCS/TMS570LC4357: How to generate CRC32 using Hardware or Software?

Arun Prakash

Part Number: TMS570LC4357
Other Parts Discussed in Thread: HALCOGEN, TMS570LS1224

Tool/software: Code Composer Studio

Dear support teams,

I'm new to TMS570LC4357, I'm working on boot-loader. boot-loader is working fine. i need to validate the entire bin file using CRC32. I have the following quires,

How to configure the CCS tool for generate the CRC32 of my bin file. (I think, i need to configure the pre-compiler step in CCS tool, Please explain the steps)
When firmware flash successfully into TMS570LC4357 using boot-loader, After i need to generate the CRC32 using Software or hardware for entire bin file and validate using received CRC32.

Note : TMS570LC4357 have CRC module, But i can't find the example code in HalCoGen example directory.

If you have any example code, please provide or guide me, for this.

Thanks in advance.

-Arun

over 6 years ago

0 QJ Wang over 6 years ago

TI__Guru**** 196816 points

Hello Arun,

Please find the example code in the following application note:

http://www.ti.com/lit/an/spna235/spna235.pdf

0 Arun Prakash over 6 years ago in reply to QJ Wang

Intellectual 390 points

Hi QJ Wang

Thanks a lot. I was go throw the documents, its very help to me. I have one doubt, In the document Software CRC64 was implemented, If i wanna use that as CRC32, what are the changed i need to do?

the below code was in the document : http://www.ti.com/lit/an/spna235/spna235.pdf

uint64 crc_update_word(uint64 crc, uint64 data)
{
    int i, j;
    uint64 nextCrc = 0;
    // for i in 63 to 0 loop
    for(i = 63; i >= 0; i--)
    {
        // NEXT_CRC_VAL(0) := CRC_VAL(63) xor DATA(i);
        nextCrc = (nextCrc & (uint64)0xfffffffffffffffe) | ((crc >> 63) ^ (data >> i));
        // for j in 1 to 63 loop
        for(j = 1; j < 64; j++)
        {
            //case j is
            // when 1|3|4 =>
            if(j == 1 || j == 3 || j == 4)
            {
                // NEXT_CRC_VAL(j) := CRC_VAL(j - 1) xor CRC_VAL(63) xor DATA(i);
                nextCrc = (nextCrc & ~((uint64)1 << j)) | ((((crc >> (j-1)) ^ (crc >> 63) ^ (data >> i)) & 1) << j);
            }
            else
            { // when others =>
                // NEXT_CRC_VAL(j) := CRC_VAL(j - 1);
                nextCrc = (nextCrc & ~((uint64)1 << j)) | (((crc >> (j-1)) & 1) << j);
            }
            // end case;
        } // end loop;
        crc = nextCrc;
    } // end loop

    return crc;
}

Thanks in adavnce

Regards'

-arun

0 QJ Wang over 6 years ago in reply to Arun Prakash

TI__Guru**** 196816 points

Hello Arun,

The CRC HW module on TMS570 device doesn't support CRC32.

0 Arun Prakash over 5 years ago in reply to QJ Wang

Intellectual 390 points

Dear forum members,

I tested the below CRC32 software code for TM570LC4357 controllers and its works fine. the SwCRC32() generate the CRC table as well as compute the CRC32 for defined memory range.

/************** Arun Tried Sw Code -4 (CRC32 for TMS570) ***************************/
//
uint32_t SwCRC32(uint32_t crc, const unsigned char *buf, size_t len)
{
    static uint32_t table[256];
    static int have_table = 0;
    uint32_t rem;
    uint8_t octet;
    int i, j;
    const unsigned char *p, *q;

    /* This check is not thread safe; there is no mutex. */
    if (have_table == 0) {
        /* Calculate CRC table. */
        for (i = 0; i < 256; i++)
        {
            rem = i;  /* remainder from polynomial division */
            for (j = 0; j < 8; j++)
            {
                if (rem & 1)
                {
                    rem >>= 1;
                    rem ^= 0xedb88320;
                } else
                    rem >>= 1;
            }
            table[i] = rem;
        }
        have_table = 1;
    }

    crc = ~crc;
    q = buf + len;
    for (p = buf; p < q; p++) {
        octet = *p;  /* Cast to unsigned octet. */
        crc = (crc >> 8) ^ table[(crc & 0xff) ^ octet];
//        crc = (crc >> 8) ^ table[(crc ^ octet)& 0xff];	//Arun modified
    }
    return ~crc;
}

int main()
{
	uint32_t TMS570LC4357_AppStartAddr = 0x00200000;	//Bank-1 start address
	int AppTotalSize = 512;	//512 bytes
	uint32_t GENERATED_SW_CRC32 = SwCRC32(0,(unsigned char*) TMS570LC4357_AppStartAddr,AppTotalSize);
	return 0;
}

Reference : https://rosettacode.org/wiki/CRC-32

0 B.M over 5 years ago in reply to Arun Prakash

Expert 1660 points

Hello Arun Prakash,

I Wanna test CRC32 software code for TM570LS1224 could you please tell me your CRC configurations that you used in Halcogen .

and could it work if i follow you code ?

Best regards,

0 B.M over 5 years ago in reply to B.M

Expert 1660 points

could i use this code to test CRC32 software for TM570LS1224

#include <stdint.h>

static const uint32_t crc32_table[] =
{
0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9,
0x130476dc, 0x17c56b6b, 0x1a864db2, 0x1e475005,
0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61,
0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd,
0x4c11db70, 0x48d0c6c7, 0x4593e01e, 0x4152fda9,
0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75,
0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011,
0x791d4014, 0x7ddc5da3, 0x709f7b7a, 0x745e66cd,
0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5,
0xbe2b5b58, 0xbaea46ef, 0xb7a96036, 0xb3687d81,
0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d,
0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49,
0xc7361b4c, 0xc3f706fb, 0xceb42022, 0xca753d95,
0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1,
0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d,
0x34867077, 0x30476dc0, 0x3d044b19, 0x39c556ae,
0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16,
0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca,
0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde,
0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02,
0x5e9f46bf, 0x5a5e5b08, 0x571d7dd1, 0x53dc6066,
0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba,
0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e,
0xbfa1b04b, 0xbb60adfc, 0xb6238b25, 0xb2e29692,
0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a,
0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e,
0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2,
0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686,
0xd5b88683, 0xd1799b34, 0xdc3abded, 0xd8fba05a,
0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637,
0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb,
0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f,
0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47,
0x36194d42, 0x32d850f5, 0x3f9b762c, 0x3b5a6b9b,
0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff,
0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623,
0xf12f560e, 0xf5ee4bb9, 0xf8ad6d60, 0xfc6c70d7,
0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b,
0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f,
0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3,
0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b,
0x9b3660c6, 0x9ff77d71, 0x92b45ba8, 0x9675461f,
0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3,
0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640,
0x4e8ee645, 0x4a4ffbf2, 0x470cdd2b, 0x43cdc09c,
0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8,
0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24,
0x119b4be9, 0x155a565e, 0x18197087, 0x1cd86d30,
0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088,
0x2497d08d, 0x2056cd3a, 0x2d15ebe3, 0x29d4f654,
0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0,
0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c,
0xe3a1cbc1, 0xe760d676, 0xea23f0af, 0xeee2ed18,
0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4,
0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0,
0x9abc8bd5, 0x9e7d9662, 0x933eb0bb, 0x97ffad0c,
0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
};

unsigned int
xcrc32 (const uint8_t *buf, int32_t len, uint32_t init)
{
uint32_t crc = init;
while (len--)
{
crc = (crc << 8) ^ crc32_table[((crc >> 24) ^ *buf) & 255];
buf++;
}
return crc;
}

int main(void)
{

uint8_t arr[5] = { 0xb1,0x93, 0xa7, 0xc5, 0xf1};

xcrc32((const unsigned char *) "yearofdata2012",14,0xffffffff);

return 0;
}

0 B.M over 5 years ago in reply to Arun Prakash

Expert 1660 points

i followed your code

here is my results but i don't know if it works fine .

and here is my project

6036.CRC_1.rar

0 Arun Prakash over 5 years ago in reply to B.M

Intellectual 390 points

Hi Ahmad,

Please use that code mentioned previous post, that will work fine for TMS570LS1224 also.

Refer the previous post : https://e2e.ti.com/support/microcontrollers/hercules/f/312/p/837031/3113017#3113017

0 QJ Wang over 5 years ago in reply to Arun Prakash

TI__Guru**** 196816 points

Hi Ahmad,

Have you solved the CRC issue?

Arm-based microcontrollers

Arm-based microcontrollers forum

CCS/TMS570LC4357: How to generate CRC32 using Hardware or Software?