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[参考译文] TMS570LC4357:ESM 错误引脚始终处于高电平状态

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Other Parts Discussed in Thread: TMS570LC4357, HALCOGEN

请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1002201/tms570lc4357-esm-error-pin-always-high-state

器件型号:TMS570LC4357
主题中讨论的其他器件: HALCOGEN

大家好、

我最近开始使用  TMS570LC4357的 ESM 模块。  我正在寻找一些详细说明或示例来配置和生成错误来检查 ESM 功能、因为我没有得到预期的结果。

在阅读手册和论坛中提出的注入 DCC 错误并检查 ESM 功能的问题后、我遵循的步骤:

Halcogen 配置:

代码:

/** @file HL_sys_main.c
*   @brief Application main file
*   @date 11-Dec-2018
*   @version 04.07.01
*
*   This file contains an empty main function,
*   which can be used for the application.
*/

/*
* Copyright (C) 2009-2018 Texas Instruments Incorporated - www.ti.com  
*
*
*  Redistribution and use in source and binary forms, with or without
*  modification, are permitted provided that the following conditions
*  are met:
*
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*    notice, this list of conditions and the following disclaimer.
*
*    Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the  
*    distribution.
*
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*    its contributors may be used to endorse or promote products derived
*    from this software without specific prior written permission.
*
*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
*  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
*  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
*  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
*  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/


/* USER CODE BEGIN (0) */
/* USER CODE END */

/* Include Files */

#include "HL_sys_common.h"

/* USER CODE BEGIN (1) */
#include "HL_het.h"
#include "HL_gio.h"
#include "HL_reg_gio.h"
#include "HL_dcc.h"
#include "HL_reg_dcc.h"
#include "HL_esm.h"
#include "HL_reg_esm.h"
#include "HL_hal_stdtypes.h"


/* Standard includes. */
#include <stdio.h>
#include <stdlib.h>

/* USER CODE END */

/** @fn void main(void)
*   @brief Application main function
*   @note This function is empty by default.
*
*   This function is called after startup.
*   The user can use this function to implement the application.
*/

/* USER CODE BEGIN (2) */
uint64 channel_status;
uint32 ErrPin_State;
void delay(void);
void blinky(void);
/* USER CODE END */

int main(void)
{
/* USER CODE BEGIN (3) */
    int i;
    ErrPin_State=3U;

    esmInit();                                                        // Initializing the ESM driver
    dccInit();                                                        // initializes the DCC module
    gioInit();                                                        // Initializes the GIO module
    gioSetDirection(gioPORTB, 0xff);                                  // Setting port B direction as output

    esmActivateNormalOperation();                                     // Activates normal operation mode

    dccEnable(dccREG1);                                               // This function enables the dcc counters to begin counting.
    dccSetCounter0Seed(dccREG1,0U);                                   // sets the seed value for Clock source 0 counter.
    dccGetErrStatus(dccREG1);                                         // Returns the error status of selected dcc1

    esmSetCounterPreloadValue(ESM_LTCPR_CONFIGVALUE);                 // Setting counter pre-load value (esmREG->LTCPR = value & 0xC000U;)

    esmEnableInterrupt(esmCHANNEL30);                                 // Enabling Group-1 Channels Interrupts
                                                                       
    esmSetInterruptLevel(esmCHANNEL30,1);                             // Setting Group-1 Channels Interrupts levels for channels 0-63.
                                                                     

    channel_status = esmGetStatus(esmGROUP1,esmCHANNEL30);            // Return's the channels status of group1
                                                                      // 0 - No error, no interrupt is pending    1 - Error occurred, interrupt pending
     
    ErrPin_State = esmError();
    //esmTriggerErrorPinReset();
       

/* USER CODE END */

    return 0;
}


/* USER CODE BEGIN (4) */

/* USER CODE END */

我正在测试一些用于监控组1中 ESM 标志的代码。 由于该误差、引脚状态始终为高电平。  

如何在 ESM 中注入 DCC 错误?  

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    如果在序列结束时没有产生错误、那么完成状态标志被置位、并且一个完成中断被生成、并且没有 ESM 标志被置位。

    测试完成后、ESM 1.30位是否已设置?

    在 DCC 计数器开始计数之前,ESM 预加载值和 ESM 中断通道应该被置位和启用( dccEnable (dccREG1);):

      esmSetCounterPreloadValue (ESM_LTCPR_CONFIGVALUE);//设置计数器预加载值(esmREG->LTCPR =值& 0xC000U;)

      esmEnableInterrupt (esmCHANNEL30);//启用组1通道中断

      esmSetInterruptLevel (esmCHANNEL30、1);

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    您好、QJ Wang、

    我已经尝试了上述更改。 测试完成后、ESM 1.30位未被置位。 预期结果未在 Erron 引脚上显示。

    您能否提供一个示例代码来检查注入错误的 ESM 工作情况?  

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    刚刚进行了测试。 我使用 OSCIN 作为 cnt0时钟源、使用 PLL1作为 cnt1 cock 源。 OSCIN=16MHz、PLL1=300MHz

    Cnt0种子为39204 --> 39204*300/16=735075

    Cnt0有效值为792    -->(39204+792)*300/16 = 749925     

    cnt1 see 应介于735075和749925之间

    如果 cnt1 seed = 742500、则测试通过、无错误

    如果 cnt1种子为74250、超出范围(735075、749925)、则测试失败:

    1。ERR 位被置位

    2. ESM 1:30被置位

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    这是用于我的测试的代码:

    /*包含文件*/

    #include "hL_sys_common.h"

    /*用户代码开始(1)*/
    #include "HL_DCC.h"

    /*用户代码结束*/

    /*用户代码开始(2)*/

    /*用户代码结束*/


    uint32 crc_selftest (void);

    uint32 crc_dselect()

    /*设置 DCC1 */
    dccInit();

    /** DCC1时钟0计数器种子值配置*/
    dccREG1->CNT0SEED = 39204U;

    /** DCC1时钟0有效计数器种子值配置*/
    dccREG1->VALID0SEED = 792U;

    /** DCC1时钟1计数器种子值配置*/
    //dccREG1->CNT1SEED = 742500U;
    dccREG1->CNT1SEED = 74250U;


    /** DCC1 Clock1 Source 1 Select */
    dccREG1->CNT1CLKSRC =(uint32)((uint32) 10U <<12U)|/** DCC 启用/禁用密钥*/
    (uint32) DCC1_CNT1_PLL1;//** DCC1时钟源1 *

    dccREG1->CNT0CLKSRC =(uint32) DCC1_CNT0_OSCIN;/** DCC1时钟源0 */

    /** DCC1全局控制寄存器配置*/
    dccREG1->GCTRL =(uint32) 0xAU |/**启用/禁用 DCC1 *
    (uint32)(((uint32) 0xAU << 4U)|/**错误中断*/
    (uint32)(((uint32) 0x5U << 8U)|/**单次触发模式*/
    (uint32)(((uint32) 0xAU << 12U);/**完成中断*/


    /*等待计数器0种子并有效到期*/
    while (dccREG1->STAT =0);

    dccDisable (dccREG1);

  • 请注意,本文内容源自机器翻译,可能存在语法或其它翻译错误,仅供参考。如需获取准确内容,请参阅链接中的英语原文或自行翻译。

    这是错误引脚的状态。 ERROR 引脚被拉至低电平。