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[参考译文] TIDA-00080:"MF1标志被置位"SDFM 中断寄存器上的问题

Guru**** 614745 points
Other Parts Discussed in Thread: TIDA-00080, AMC1306EVM, C2000WARE, CDCE906, AMC1306M25
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/tools/simulation-hardware-system-design-tools-group/sim-hw-system-design/f/simulation-hardware-system-design-tools-forum/1127753/tida-00080-mf1-flag-is-set-problem-on-sdfm-interrupt-register

器件型号:TIDA-00080
主题中讨论的其他器件: AMC1306EVMC2000WARECDCE906AMC1306M25

早上好。  

我想知道我是否能获得一些关于我遇到的问题的建议。  

最终目标是运行 TIDA-00080参考设计。  

首先、我尝试使用 AMC1306EVM 研究了性能。  

我使用了我在 MCU (F280049)中从 PWM 生成的时钟信号。  

我还使用了 SDFM 的修改示例代码(C2000Ware_4_01_00_00\driverlib\f28004x\examples\sdfm\sdfm_ex1_filter_sync_cpuread.c)

在本例中、我可以在 CCS 调试中看到时钟信号、数据信号和滤波器结果。  

第二、我已经研究了 TIDA-00080设计。 我从文件中获取了 PCB、并且组装了大多数组件(不包括 FPGA 器件)

也重新配置了 CDCE906寄存器、我可以从那里获取时钟信号。  

此时、我可以看到时钟信号作为 AMC1306的输入、而数据信号作为 AMC1306 IC 芯片的输出。

这是我得到的波形。  

绿色脉冲是引脚7上的时钟信号(AMC1306M25上的 CLKIN)、10[MHz]

蓝色脉冲是引脚6上的数据信号(AMC1306M25上的 DOUT)

总之、我可以在 SDFM 侧获得正确的信号。  

问题出在 MCU 侧。 我无法在调试会话中获取滤波器结果。 显示了所有0的值。  

因此、我研究了代码、然后可以设置 MF1上的标志。

在技术参考手册中、有人说"当 SD-CX 丢失时会生成调制器故障(mfx)。"  

我检查了分配为 SD1_C1的 GPBDAT/GPIO49、我可以实时看到交替值(0到1)。  

因此我认为"时钟不会丢失"。 但仍然、MF1位被置位并停留在那个(我连接的代码上的第329行)点上。  

我可以在 e2e.ti.com/.../tms320f28379d-using-sdfm-with-amc1305-evm"上找到与此问题相关的主题

但该线程的作者使用 PWM 作为时钟信号。 但我使用了一个外部信号、因此我无法遵循该线程的解决方案。  

在这种情况下、我可以检查 SDFM 的正确中断是什么?  

我随附了以下代码以供您参考。 我没有使用 TIDA-00080的 GUI 和固件、因为我不需要该功能。  

感谢你的帮助。  

此致。

//###########################################################################
//
// FILE:   sdfm_ex1_filters.c
//
// TITLE:  SDFM Filter sync CPU Example.
//
//! \addtogroup driver_example_list
//! <h1> SDFM Filter Sync CPU</h1>
//!
//! In this example, SDFM filter data is read by CPU in SDFM ISR routine. The
//! SDFM configuration is shown below:
//!  -  SDFM used in this example - SDFM1
//!  -  Input control mode selected - MODE0
//!  -  Comparator settings
//!       - Sinc3 filter selected
//!       - OSR = 32
//!       - HLT = 0x7FFF (Higher threshold setting)
//!       - LLT  = 0x0000(Lower threshold setting)
//!  -  Data filter settings
//!      - All the 4 filter modules enabled
//!      - Sinc3 filter selected
//!      - OSR = 128
//!      - All the 4 filters are synchronized by using MFE
//!       (Master Filter enable bit)
//!      - Filter output represented in 16 bit format
//!      - In order to convert 25 bit Data filter
//!        into 16 bit format user needs to right shift by 8 bits for
//!        Sinc3 filter with OSR = 128
//!  - Interrupt module settings for SDFM filter
//!      - All the 4 higher threshold comparator interrupts disabled
//!      - All the 4 lower threshold comparator interrupts disabled
//!      - All the 4 modulator failure interrupts disabled
//!      - All the 4 filter will generate interrupt when a new filter data
//!        is available.
//!
//
//###########################################################################
//
// $Release Date: $
// $Copyright:
// Copyright (C) 2013-2022 Texas Instruments Incorporated - http://www.ti.com/
//
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions 
// are met:
// 
//   Redistributions of source code must retain the above copyright 
//   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.
// 
//   Neither the name of Texas Instruments Incorporated nor the names of
//   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 
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// $
//###########################################################################

//
// Included Files
//
#include "driverlib.h"
#include "device.h"
#include <stdio.h>

//
// Defines
//
#define MAX_SAMPLES               1024
//
// Globals
//

int16_t  filter1Result[MAX_SAMPLES];
int16_t  filter2Result[MAX_SAMPLES];
int16_t  filter3Result[MAX_SAMPLES];
int16_t  filter4Result[MAX_SAMPLES];
#pragma DATA_SECTION(filter1Result, "Filter1_RegsFile");
#pragma DATA_SECTION(filter2Result, "Filter2_RegsFile");
#pragma DATA_SECTION(filter3Result, "Filter3_RegsFile");
#pragma DATA_SECTION(filter4Result, "Filter4_RegsFile");

//
// Defines
//
#define SDFM_FILTER_ENABLE 0x2U

//
// Function Prototypes
//
void configureSDFMPins(void);
void done(void);
__interrupt void sdfm1ISR(void);
__interrupt void sdfm2ISR(void);


//
// Main
//
void main(void)
{
    uint16_t  hlt, llt;

    //
    // Initialize device clock and peripherals
    //
    Device_init();

    //
    // Setup GPIO by disabling pin locks and enabling pullups
    //
    Device_initGPIO();

    //
    // Initialize PIE and clear PIE registers. Disables CPU interrupts.
    //
    Interrupt_initModule();

    //
    // Initialize the PIE vector table with pointers to the shell Interrupt
    // Service Routines (ISR).
    //
    Interrupt_initVectorTable();

    //
    // Interrupts that are used in this example are re-mapped to
    // ISR functions found within this file.
    //
    Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP5);
    Interrupt_register(INT_SD1, sdfm1ISR);
    Interrupt_register(INT_SD2, sdfm2ISR);

    //
    // Enable SDFM1 amd SDFM2 interrupts
    //
    Interrupt_enable(INT_SD1);
    Interrupt_enable(INT_SD2);

    //
    // Input Control Unit
    //
    // Configure Input Control Unit: Modulator Clock rate = Modulator data rate
    //
    SDFM_setupModulatorClock(SDFM1_BASE, SDFM_FILTER_1,
                             SDFM_MODULATOR_CLK_EQUAL_DATA_RATE);

    SDFM_setupModulatorClock(SDFM1_BASE, SDFM_FILTER_2,
                             SDFM_MODULATOR_CLK_EQUAL_DATA_RATE);

    SDFM_setupModulatorClock(SDFM1_BASE, SDFM_FILTER_3,
                             SDFM_MODULATOR_CLK_EQUAL_DATA_RATE);

    SDFM_setupModulatorClock(SDFM1_BASE, SDFM_FILTER_4,
                             SDFM_MODULATOR_CLK_EQUAL_DATA_RATE);

    //
    // Comparator Unit - over and under value threshold settings
    //
    hlt = 0x7FFF;
    llt = 0x0000;

    //
    // Configure Comparator Unit's comparator filter type and comparator's
    // OSR value, higher threshold, lower threshold
    //
    SDFM_configComparator(SDFM1_BASE,
        (SDFM_FILTER_1 | SDFM_FILTER_SINC_3 | SDFM_SET_OSR(32)),
        (SDFM_GET_LOW_THRESHOLD(llt) | SDFM_GET_HIGH_THRESHOLD(hlt)));
    SDFM_configComparator(SDFM1_BASE,
        (SDFM_FILTER_2 | SDFM_FILTER_SINC_3 | SDFM_SET_OSR(32)),
        (SDFM_GET_LOW_THRESHOLD(llt) | SDFM_GET_HIGH_THRESHOLD(hlt)));
    SDFM_configComparator(SDFM1_BASE,
        (SDFM_FILTER_3 | SDFM_FILTER_SINC_3 | SDFM_SET_OSR(32)),
        (SDFM_GET_LOW_THRESHOLD(llt) | SDFM_GET_HIGH_THRESHOLD(hlt)));
    SDFM_configComparator(SDFM1_BASE,
        (SDFM_FILTER_4 | SDFM_FILTER_SINC_3 | SDFM_SET_OSR(32)),
        (SDFM_GET_LOW_THRESHOLD(llt) | SDFM_GET_HIGH_THRESHOLD(hlt)));

    //
    // Data Filter Unit
    //
    // Configure Data Filter Unit - filter type, OSR value and
    // enable / disable data filter
    //
    SDFM_configDataFilter(SDFM1_BASE, (SDFM_FILTER_1 | SDFM_FILTER_SINC_3 |
           SDFM_SET_OSR(128)), (SDFM_DATA_FORMAT_16_BIT | SDFM_FILTER_ENABLE |
           SDFM_SHIFT_VALUE(0x0007))); //0x0008

    SDFM_configDataFilter(SDFM1_BASE, (SDFM_FILTER_2 | SDFM_FILTER_SINC_3 |
           SDFM_SET_OSR(128)), (SDFM_DATA_FORMAT_16_BIT | SDFM_FILTER_ENABLE |
           SDFM_SHIFT_VALUE(0x0007)));

    SDFM_configDataFilter(SDFM1_BASE, (SDFM_FILTER_3 | SDFM_FILTER_SINC_3 |
           SDFM_SET_OSR(128)), (SDFM_DATA_FORMAT_16_BIT | SDFM_FILTER_ENABLE |
           SDFM_SHIFT_VALUE(0x0007)));

    SDFM_configDataFilter(SDFM1_BASE, (SDFM_FILTER_4 | SDFM_FILTER_SINC_3 |
           SDFM_SET_OSR(128)), (SDFM_DATA_FORMAT_16_BIT | SDFM_FILTER_ENABLE |
           SDFM_SHIFT_VALUE(0x0007)));

    //
    // Enable Master filter bit: Unless this bit is set none of the filter modules
    // can be enabled. All the filter modules are synchronized when master filter
    // bit is enabled after individual filter modules are enabled.
    //
    SDFM_enableMasterFilter(SDFM1_BASE);

    //
    // PWM11.CMPC, PWM11.CMPD, PWM12.CMPC and PWM12.CMPD signals cannot synchronize
    // the filters. This option is not being used in this example.
    //
    SDFM_disableExternalReset(SDFM1_BASE, SDFM_FILTER_1);
    SDFM_disableExternalReset(SDFM1_BASE, SDFM_FILTER_2);
    SDFM_disableExternalReset(SDFM1_BASE, SDFM_FILTER_3);
    SDFM_disableExternalReset(SDFM1_BASE, SDFM_FILTER_4);

    //
    // Enable interrupts
    //
    // Following SDFM interrupts can be enabled / disabled using this function.
    // Enable / disable comparator high threshold
    // Enable / disable comparator low threshold
    // Enable / disable modulator clock failure
    // Enable / disable data filter acknowledge
    //
    SDFM_enableInterrupt(SDFM1_BASE, SDFM_FILTER_1,
            (SDFM_MODULATOR_FAILURE_INTERRUPT |
             SDFM_DATA_FILTER_ACKNOWLEDGE_INTERRUPT));
/*
    SDFM_enableInterrupt(SDFM1_BASE, SDFM_FILTER_2,
            (SDFM_MODULATOR_FAILURE_INTERRUPT |
             SDFM_DATA_FILTER_ACKNOWLEDGE_INTERRUPT));

    SDFM_enableInterrupt(SDFM1_BASE, SDFM_FILTER_3,
            (SDFM_MODULATOR_FAILURE_INTERRUPT |
             SDFM_DATA_FILTER_ACKNOWLEDGE_INTERRUPT));

    SDFM_enableInterrupt(SDFM1_BASE, SDFM_FILTER_4,
            (SDFM_MODULATOR_FAILURE_INTERRUPT |
             SDFM_DATA_FILTER_ACKNOWLEDGE_INTERRUPT));
*/
    SDFM_disableInterrupt(SDFM1_BASE, SDFM_FILTER_1,
            (SDFM_HIGH_LEVEL_THRESHOLD_INTERRUPT |
             SDFM_LOW_LEVEL_THRESHOLD_INTERRUPT));

    SDFM_disableInterrupt(SDFM1_BASE, SDFM_FILTER_2,
            (SDFM_HIGH_LEVEL_THRESHOLD_INTERRUPT |
             SDFM_LOW_LEVEL_THRESHOLD_INTERRUPT));

    SDFM_disableInterrupt(SDFM1_BASE, SDFM_FILTER_3,
            (SDFM_HIGH_LEVEL_THRESHOLD_INTERRUPT |
             SDFM_LOW_LEVEL_THRESHOLD_INTERRUPT));

    SDFM_disableInterrupt(SDFM1_BASE, SDFM_FILTER_4,
            (SDFM_HIGH_LEVEL_THRESHOLD_INTERRUPT |
             SDFM_LOW_LEVEL_THRESHOLD_INTERRUPT));

    //
    // Enable master interrupt so that any of the filter interrupts can trigger
    // by SDFM interrupt to CPU
    //
    SDFM_enableMasterInterrupt(SDFM1_BASE);

    //
    // Enable Global Interrupt (INTM) and realtime interrupt (DBGM)
    //
    EINT;
    ERTM;

    //
    // Wait for an interrupt
    //
    while(1);
}

//
// sdfm1ISR - SDFM 1 ISR
//
__interrupt void sdfm1ISR(void)
{

    static uint16_t loopCounter1 = 0;

    SDFM_setOutputDataFormat(SDFM1_BASE, SDFM_FILTER_1,
                             SDFM_DATA_FORMAT_16_BIT);

    SDFM_setOutputDataFormat(SDFM1_BASE, SDFM_FILTER_2,
                             SDFM_DATA_FORMAT_16_BIT);

    SDFM_setOutputDataFormat(SDFM1_BASE, SDFM_FILTER_3,
                             SDFM_DATA_FORMAT_16_BIT);

    SDFM_setOutputDataFormat(SDFM1_BASE, SDFM_FILTER_4,
                             SDFM_DATA_FORMAT_16_BIT);

    if(loopCounter1 >= MAX_SAMPLES)
       {
           //
           // Reset the counter. Add breakpoint at below statement to view the
           // filter results in graph view.
           //
           loopCounter1 = 0;

   //        //
   //        // Software breakpoint to view results.
   //        // Hit run again to get updated conversions.
   //        // Uncomment to halt the execution once buffer is full.
   //        //
   //        ESTOP0;
       }
    //
    // Read SDFM flag register (SDIFLG)
    //

    while((HWREG(SDFM1_BASE + SDFM_O_SDIFLG) & 0x1000) != 0x1000) //0xF000U
    {
    }
        //
        // Read each SDFM filter output and store it in respective filter
        // result array
        //
        filter1Result[loopCounter1] =
              (int16_t)(SDFM_getFilterData(SDFM1_BASE, SDFM_FILTER_1) >> 16U);

        filter2Result[loopCounter1] =
              (int16_t)(SDFM_getFilterData(SDFM1_BASE, SDFM_FILTER_2) >> 16U);

        filter3Result[loopCounter1] =
              (int16_t)(SDFM_getFilterData(SDFM1_BASE, SDFM_FILTER_3) >> 16U);

        filter4Result[loopCounter1++] =
              (int16_t)(SDFM_getFilterData(SDFM1_BASE, SDFM_FILTER_4) >> 16U);

        //
        // Clear SDFM flag register (SDIFLG)
        //
        SDFM_clearInterruptFlag(SDFM1_BASE, SDFM_MASTER_INTERRUPT_FLAG |
                                            0xFFFF);

    //
    // Acknowledge this __interrupt to receive more __interrupts from group 5
    //
    Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP5);
}

//
// sdfm2ISR - SDFM 2 ISR
//
__interrupt void sdfm2ISR(void)
{
    uint32_t sdfmReadFlagRegister = 0;
    static uint16_t loopCounter1 = 0;

    SDFM_setOutputDataFormat(SDFM2_BASE, SDFM_FILTER_1,
                             SDFM_DATA_FORMAT_16_BIT);

    SDFM_setOutputDataFormat(SDFM2_BASE, SDFM_FILTER_2,
                             SDFM_DATA_FORMAT_16_BIT);

    SDFM_setOutputDataFormat(SDFM2_BASE, SDFM_FILTER_3,
                             SDFM_DATA_FORMAT_16_BIT);

    SDFM_setOutputDataFormat(SDFM2_BASE, SDFM_FILTER_4,
                             SDFM_DATA_FORMAT_16_BIT);

    //
    // Read SDFM flag register (SDIFLG)
    //
    sdfmReadFlagRegister = HWREG(SDFM2_BASE + SDFM_O_SDIFLG);

    if(loopCounter1 < MAX_SAMPLES)
    {
        //
        // Read each SDFM filter output and store it in respective filter
        // result array
        //
        filter1Result[loopCounter1] =
                (int16_t)SDFM_getFilterData(SDFM2_BASE, SDFM_FILTER_1);

        filter2Result[loopCounter1] =
                (int16_t)SDFM_getFilterData(SDFM2_BASE, SDFM_FILTER_2);

        filter3Result[loopCounter1] =
                (int16_t)SDFM_getFilterData(SDFM2_BASE, SDFM_FILTER_3);

        filter4Result[loopCounter1++] =
                (int16_t)SDFM_getFilterData(SDFM2_BASE, SDFM_FILTER_4);

        //
        // Clear SDFM flag register
        //
        SDFM_clearInterruptFlag(SDFM2_BASE,
                                (SDFM_MASTER_INTERRUPT_FLAG | 0xFFFF));

        sdfmReadFlagRegister = HWREG(SDFM2_BASE + SDFM_O_SDIFLG);

        if(sdfmReadFlagRegister != 0x0)
        {
            ESTOP0;
        }
    }
    else
    {
        ESTOP0;
        done();
    }

    //
    // Acknowledge this __interrupt to receive more __interrupts from group 5
    //
    Interrupt_clearACKGroup(INTERRUPT_ACK_GROUP5);
}

//
// configureSDFMPins - Configure SDFM GPIOs
//
void configureSDFMPins(void)
{
    uint16_t pin;
    for(pin = 48; pin <= 55; pin++)
    {
        GPIO_setDirectionMode(pin, GPIO_DIR_MODE_IN);
        GPIO_setMasterCore(pin, GPIO_CORE_CPU1);
        GPIO_setPadConfig(pin, GPIO_PIN_TYPE_STD);
        GPIO_setQualificationMode(pin, GPIO_QUAL_ASYNC);
    }

    GPIO_setPinConfig(GPIO_48_SD1_D1);
    GPIO_setPinConfig(GPIO_49_SD1_C1);
    GPIO_setPinConfig(GPIO_50_SD1_D2);
    GPIO_setPinConfig(GPIO_51_SD1_C2);
    GPIO_setPinConfig(GPIO_52_SD1_D3);
    GPIO_setPinConfig(GPIO_53_SD1_C3);
    GPIO_setPinConfig(GPIO_54_SD1_D4);
    GPIO_setPinConfig(GPIO_55_SD1_C4);
    /*
    for(pin = 28; pin <= 29; pin++)
    {
        GPIO_setDirectionMode(pin, GPIO_DIR_MODE_IN);
        GPIO_setMasterCore(pin, GPIO_CORE_CPU1);
        GPIO_setPadConfig(pin, GPIO_PIN_TYPE_STD);
        GPIO_setQualificationMode(pin, GPIO_QUAL_ASYNC);
    }
    GPIO_setPinConfig(GPIO_28_SD2_D3);
    GPIO_setPinConfig(GPIO_29_SD2_C3);
    */
}

//
// done - Function to halt debugger and stop application
//
void done(void)
{
    asm(" ESTOP0");
    for(;;);
}


//
// End of file
//

  • 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!

    configureSDFMPins 函数已定义、但未在程序中使用。 尝试 在 Interrupt_enable (INT_SD2)之后调用 configureSDFMPins 函数;并查看问题是否消失。

    此致、

    曼诺伊

  • 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。

    感谢您的解决方案。  

    问题得到了解决。