TMS570LS3137: CRC-auto自动模式

各位大神：

请教一下，测试TMS570LS3137的crc自动模式，发现BUSY位一直为1， PSA sector signature寄存器没有值，PsaSig寄存器和CRC_Value寄存器的低8位不匹配，问题出在哪呢？

/* USER CODE BEGIN (2) */
#define FRAME_COUNT 0x1
#define ELEMENT_COUNT 0x1
#define D_SIZE 8
g_dmaCTRL g_dmaCTRLPKT0, g_dmaCTRLPKT1;// dma control packet configuration stack




int main(void)
{
/* USER CODE BEGIN (3) */
//uint64 u64Signature = 0U;uint64 result_crc = 0U;_enable_IRQ();

//uint32_t CRC1_Ref[2] = {0x5F7EAE33, 0x6233774E};uint64 crc_test_value = 0x8DF8A32C74B91F3E;
//uint16 tx_data[D_SIZE] = {0x1111,0x2222,0x3333,0x4444,0x5555,0x6666,0x7777,0x8888};
//uint64 *p = &crc_test_value;crcInit();result_crc = crc_update_word(0U, crc_test_value);
//result_crc = calc_crc64(p,1);printf("%llx \n",result_crc);crcREG->PCOUNT_REG1= FRAME_COUNT * ELEMENT_COUNT;crcREG->SCOUNT_REG1 = 1;crcEnableNotification(crcREG,1);dmaEnable();g_dmaCTRLPKT0.SADD = (uint32_t)(&(result_crc));//g_dmaCTRLPKT0.SADD = (uint32_t)0x08000FE8; //address of variable result_crc which holds the pre-determined CRC value.
//g_dmaCTRLPKT0.SADD = (uint32_t)(&CRC1_Ref[0]);g_dmaCTRLPKT0.DADD = (uint32_t)(&(crcREG->REGL1));g_dmaCTRLPKT0.CHCTRL = 0;g_dmaCTRLPKT0.FRCNT = FRAME_COUNT;g_dmaCTRLPKT0.ELCNT = ELEMENT_COUNT;g_dmaCTRLPKT0.ELDOFFSET = 0;g_dmaCTRLPKT0.ELSOFFSET = 0;g_dmaCTRLPKT0.FRDOFFSET = 0;g_dmaCTRLPKT0.FRSOFFSET = 0;g_dmaCTRLPKT0.PORTASGN  = 4;g_dmaCTRLPKT0.RDSIZE= ACCESS_64_BIT;g_dmaCTRLPKT0.WRSIZE= ACCESS_64_BIT;g_dmaCTRLPKT0.TTYPE= FRAME_TRANSFER;g_dmaCTRLPKT0.ADDMODERD = ADDR_FIXED;g_dmaCTRLPKT0.ADDMODEWR = ADDR_FIXED;g_dmaCTRLPKT0.AUTOINIT  = AUTOINIT_OFF;// setting dma control packets for receivedmaSetCtrlPacket(DMA_CH0, g_dmaCTRLPKT0);
//dmaReqAssign(DMA_CH0, DMA_REQ26);dmaSetChEnable(DMA_CH0 ,DMA_SW);g_dmaCTRLPKT1.SADD = (uint32_t)(&(crc_test_value));//g_dmaCTRLPKT1.SADD = (uint32_t)0x08000FF0;//address of crc_test_value from where the memory area to be verified.
//g_dmaCTRLPKT1.SADD = (uint32_t)tx_data; /* source address */g_dmaCTRLPKT1.DADD = (uint32_t)(&(crcREG->PSA_SIGREGL1));g_dmaCTRLPKT1.CHCTRL = 0;g_dmaCTRLPKT1.FRCNT = FRAME_COUNT;g_dmaCTRLPKT1.ELCNT = ELEMENT_COUNT;g_dmaCTRLPKT1.ELDOFFSET = 0;g_dmaCTRLPKT1.ELSOFFSET = 0;g_dmaCTRLPKT1.FRDOFFSET = 0;g_dmaCTRLPKT1.FRSOFFSET = 0;g_dmaCTRLPKT1.PORTASGN  = 4;g_dmaCTRLPKT1.RDSIZE= ACCESS_64_BIT;g_dmaCTRLPKT1.WRSIZE= ACCESS_64_BIT;g_dmaCTRLPKT1.TTYPE= FRAME_TRANSFER;g_dmaCTRLPKT1.ADDMODERD = ADDR_FIXED;g_dmaCTRLPKT1.ADDMODEWR = ADDR_FIXED;g_dmaCTRLPKT1.AUTOINIT  = AUTOINIT_OFF;// setting dma control packets for receivedmaSetCtrlPacket(DMA_CH1, g_dmaCTRLPKT1);dmaSetChEnable(DMA_CH1, DMA_SW);/**while( crcREG->BUSY & 1ul ){}u64Signature = crcGetSectorSig(crcREG, CRC_CH1);crcREG->STATUS = CRC_CH1_CC;if(u64Signature != result_crc){printf("wrong!,result_crc is %llx,u64Signature is %llx",result_crc,u64Signature);}else{printf("right!");}*/
//printf("%llx \n",u64Signature);
//while(1);
/* USER CODE END */return 0;
}

uint64 crc_update_word(uint64 crc, uint64 data)
{int i, j;uint64 nextCrc = 0;// for i in 63 to 0 loopfor(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 loopfor(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 loopreturn crc;
}

Susan Yang：

我看您在英文E2E也发了帖子，并且有相关工程师回复。 QJ Wang 是TMS570的专家，您可以继续跟帖回复

e2e.ti.com/…/910978