[参考译文] AM2634：如何在 AM2634 MCU 中执行 CRC 操作？

尊敬的 Kier：

感谢您的重播、

1.我的要求是不要使用您在 SDK 中提供的示例代码。

  所以我在这里创建了我自己的 CRC 函数、以便我可以使用我的函数查找 CRC

  下面是我的示例代码、用于计算 CRC、

uint32_t CRC32Calculate(const uint8_t* data, uint32_t length, const st_CRC32_param* ptrParam)
{
    uint32_t result;
    uint8_t buffer;
    if ((length != EMPTY_BUFFER) && (ptrParam->polynomial != EMPTY_BUFFER)) // Checking if data is valid
    {
        uint32_t crc = ptrParam->initial;
        for (uint32_t i = 0U; i < length; i++)
        {


            // Use reflection based on RefelectDataFlag
            if ((ptrParam->RefelectDataFlag) != 0U)
            {
                buffer = (uint8_t)ReverseBits(data[i], BYTES_BY_BYTES); // Reflect data
            }
            else
            {
                buffer = data[i]; // No reflection
            }

            // XOR buffer with the relevant bits of the current CRC
            buffer ^= (uint8_t)(crc >> (WIDTH - BYTES_BY_BYTES)); // Explicit cast to 8-bit

            // Update CRC using the lookup table and polynomial
            crc = CRCTableCreation[buffer] ^ (crc << BYTES_BY_BYTES);
        }

        // Use reflection for the final CRC value based on RefelectRemainderFlag
        if ((ptrParam->RefelectRemainderFlag != 0U)) // Explicit boolean condition
        {
            result = (ReverseBits(crc, WIDTH) ^ ptrParam->finalXor); // Reflect final CRC
        }
        else
        {
            result = (crc ^ ptrParam->finalXor); // No reflection
        }
    }
    else
    {
        result = 0U; // RESULT 0 for invalid input
    }
    return result;
}

尊敬的 QJ Wang：

感谢您的重放、因此、我尝试了 GPIO LED 代码中的逻辑、我刚刚替换了您的逻辑、并在下面附加了代码。

什么是我们闪存它会加载到 RAM 内存,所以我考虑 OCRAM : origin = 0x70040000 , length = 0x40000这一个

#include <drivers/gpio.h>
#include <kernel/dpl/AddrTranslateP.h>
#include <kernel/dpl/DebugP.h>
#include <kernel/dpl/ClockP.h>
#include "ti_drivers_config.h"
#include "ti_drivers_open_close.h"
#include "ti_board_open_close.h"
#include <sdl/sdl_mcrc.h>
#include <stdint.h>

#define MCRC_CTRL0   (*(volatile uint32_t *)0x35000000U)
#define MCRC_CTRL2   (*(volatile uint32_t *)0x35000010U)
#define MCRC_STATUS      (*(volatile uint32_t *)0x35000028U)
#define MCRC_SIGREGL1  (*(volatile uint32_t *)0x35000060U)
#define MCRC_SIGREGH1 (*(volatile uint32_t *)0x35000064U)
#define MCRC_SIGREG     (*(volatile uint64_t *)0x35000060U)

/* Function to calculate CRC */
uint32_t crc_calculate(uint64_t startAddr, uint32_t count)
{
    volatile uint32_t index = 0u;

    MCRC_CTRL0 |= 0x00000001U;          /* Reset the CRC Module */
    MCRC_CTRL0 &= 0xFFFFFFFEU;
    MCRC_CTRL2 |= 0x00000003U;          /* Configure to Full CPU Mode */

    for (index = 0u; index < count; index++)
    {
        MCRC_SIGREG = *(volatile uint64_t *)startAddr;
        startAddr += sizeof(uint64_t);  // Increment by the size of uint64_t
    }

    return (uint32_t)(MCRC_SIGREG);      // Return lower 32 bits of the CRC
}

void gpio_led_blink_main(void *args)
{
    /* Open drivers to open the UART driver for console */
    Drivers_open();
    Board_driversOpen();

    DebugP_log("Test Started ...\r\n");

    uint64_t startAddr = 0x70040000;  // Starting address in OCRAM
    uint32_t count = 0x40000 / sizeof(uint64_t);  // Number of 64-bit words to read
    uint32_t CRC = crc_calculate(startAddr, count);
    DebugP_log("CRC value is %0XX\r\n", CRC);

    DebugP_log("All tests have passed!!\r\n");

    Board_driversClose();
    Drivers_close();
}

我得到的值是、如果没问题、您可以只验证该逻辑吗？

下面是我的输出。

这里、我需要工具、外部软件或编译软件来进行 CRC32计算...在该工具中、我需要在运行时测试我的闪存地址或 RAM 地址、并且我需要检查两个实现是否正确？

请提供解决方案、谢谢。