• 状态 Resolved
  • 已锁定 已锁定
  • 个回复 2 个回复
  • 名订阅用户 8 名订阅用户
  • 次查看 2530 次查看
  • 用户 0 名在线用户
选项
选项

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

想请教各位关于TMS570LC43X launchpad 关于安全测试demo中的一个函数和关于printf重定向的问题

jianing jia
Prodigy 90 points
Other Parts Discussed in Thread: CCSTUDIO

函数如下SL_SelfTest_Flash(FLASH_ECC_TEST_MODE_1BIT, TRUE, &failInfoFlash);

定义如下boolean SL_SelfTest_Flash (SL_SelfTestType testType, boolean bMode, SL_SelfTest_Result * flash_stResult);

请问这个函数实现什么功能，另外我重定向printf函数之后调用printf程序遇到上面那个函数程序就会死掉，请问是我重定向出错了吗？

其次，我printf重定向之后可以输出字符串 例如printf("welcome");可以在串口上成功显示，但输出某个变量时则无法输出，例如 printf("%d\r\n",i);则什么都不显示，这是因为我重定向错误还是因为CCS哪里没有配置好？

附上我重定向的函数：

int fputc(int ch, FILE *f)
{
sciSendByte(sciREG1, (unsigned char)ch);

while ((sciREG1->FLR & 0x4) == 4);

return (ch);
}

恳请各位不吝赐教！

  • 0
    Prodigy 90 points

    经过半天的摸索printf的问题解决了，大家可以参考这个网站进行printf函数的重定向http://processors.wiki.ti.com/index.php/Printf_support_for_MSP430_CCSTUDIO_compiler，但第一个问题还请各位赐教

  • 0
    TI__Expert 7136 points

    Hi Jianing,

    这个是Flash的自检函数， 具体的可以参考 TMS570 SafeTI Diagnostic Library的说明：

    boolean SL_SelfTest_Flash ( SL_SelfTestType  testType,
    boolean  bMode,
    SL_SelfTest_Result *  flash_stResult 
    )

    Executes diagnostic tests on F021 Flash.

    Description:
    F021 Flash wrapper provides to verify various logic. The flash wrapper provides multiple diagnostic modes.
    Thisfunction executes the selected diagnostic mode.

    Please refer to _SL_SelfTest_Type for the values to be used for testType

    Note : Refer to Safety Manual for TMS570LS31x/21x and RM48x Hercules ARM Safety Critical Microcontrollers (section on Primary Embedded Flash and RM48x/TMS570LS31x 16/32-Bit RISC Flash Microcontroller TRM (section F021 Flash Module Controller)
    Note: For FLASH_ECC_TEST_MODE_2BIT_FAULT_INJECT the fault is injected in the subsequent read of the corrupted flash area by the application. The application must take care to restore the flash diagnostic control registers . Note: FLASH_HARD_ERROR_LIVELOCK is not supported in this release.

    Parameters
    [in] testType - Specifies the test type to execute
    [in] bMode - NOT USED
    [in] flash_stResult - Pointer to structure that is used to return the test status & results
    Note: contents of structure param1 is valid only for self-test.Not valid for Fault Injection mode.
    Returns
    TRUE if function executed successfully else FALSE

    Example Usage:

    boolean retVal;
    //Execute 1Bit test
    SL_SelfTest_Result flash_stResult;
    retVal = SL_SelfTest_Flash(FLASHECC_ECC_TEST_MODE_1BIT, TRUE, &flash_stResult);
    Entry Mode:
    Any privilege mode
    Exit Mode:
    Same as entry
    See also:
    Type:_SL_SelfTest_Type
    Profiling Information of Tests:
    TestTypeProfiling Time in us
    FLASH_ECC_ADDR_TAG_REG_MODE 8.437
    FLASH_ECC_TEST_MODE_1BIT 7.3605
    FLASH_ECC_TEST_MODE_2BIT 13.3885 

    谢谢！