<?xml version="1.0" encoding="UTF-8" ?>
<?xml-stylesheet type="text/xsl" href="https://e2echina.ti.com/cfs-file/__key/system/syndication/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>C2000™︎ 微控制器论坛 - 最近的话题</title><link>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum</link><description /><dc:language>zh-CN</dc:language><generator>Telligent Community 13</generator><lastBuildDate>Thu, 23 Jul 2026 04:56:55 GMT</lastBuildDate><atom:link rel="self" type="application/rss+xml" href="https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum" /><item><title>TMS320F2800137: 对32位浮点数的计算精度是多少</title><link>https://e2echina.ti.com/thread/1085794?ContentTypeID=0</link><pubDate>Wed, 22 Jul 2026 08:25:50 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:7c18368e-67f7-4385-89e1-2385193c46b3</guid><dc:creator>Aiden zhang</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/1085794?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085794/tms320f2800137-32/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F2800137&lt;/p&gt;&lt;p&gt;对float32_t类型的变量sum、step进行计算如下：&lt;/p&gt;
&lt;p&gt;sum = sum+step;&lt;/p&gt;
&lt;p&gt;问step的值必须大于多少才不至于被忽略？&lt;/p&gt;
&lt;p&gt;&amp;nbsp;&lt;/p&gt;</description></item><item><title>RE: TMS320F2800137: 对32位浮点数的计算精度是多少</title><link>https://e2echina.ti.com/thread/3909011?ContentTypeID=1</link><pubDate>Thu, 23 Jul 2026 04:56:55 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:e8ade4fb-3ca2-47dc-a658-38f357678fcd</guid><dc:creator>Vivian Gao</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3909011?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085794/tms320f2800137-32/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;遵照的是IEEE 754标准，比较通用的公式如下。&lt;/p&gt;
&lt;p&gt;&lt;br /&gt;step不被忽略的最小值:&lt;br /&gt;step_min = sum &amp;times; FLT_EPSILON&lt;br /&gt;step_min = sum &amp;times; 1.19209e-7f&lt;br /&gt;或者更保守的估计(考虑舍入误差累积):&lt;/p&gt;
&lt;p&gt;step_min = sum &amp;times; (2 &amp;times; FLT_EPSILON)&lt;br /&gt;step_min = sum &amp;times; 2.38418e-7f&lt;/p&gt;
&lt;h2 class="text-xl font-semibold mt-6 mb-3"&gt;&lt;code class="hljs language-c"&gt;&lt;/code&gt;&lt;/h2&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>TMS320F28379D: 移植例程无法进入中断</title><link>https://e2echina.ti.com/thread/1082966?ContentTypeID=0</link><pubDate>Mon, 06 Jul 2026 13:09:50 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:ba4e9838-f24c-4551-a4c3-f21dadbc6bd9</guid><dc:creator>boy_z</dc:creator><slash:comments>3</slash:comments><comments>https://e2echina.ti.com/thread/1082966?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1082966/tms320f28379d/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F28379D&lt;/p&gt;&lt;p&gt;hi，TI工程师&lt;/p&gt;
&lt;p&gt;&amp;nbsp; 我在移植adc_soc_epwm_cpu01.c例程到我的工程中发现，程序不进入adca1_isr中断。不确定是否是工程配置导致的问题。&lt;/p&gt;
&lt;pre class="language-c"&gt;&lt;code&gt;#include &amp;quot;F28x_Project.h&amp;quot;
#include &amp;quot;drv_cfg.h&amp;quot;
#include &amp;quot;board.h&amp;quot;

void ConfigureADC(void);
void ConfigureEPWM(void);
void SetupADCEpwm(Uint16 channel);
interrupt void adca1_isr(void);

uint16_t aa=0,bb=55,cc=0;
/**
 * main.c
 */
uint16_t temp=0,temp2=0x80;
int main(void)
{
    //初始化PLL、看门狗、使能外设时钟
    InitSysCtrl();
    //关闭CPU中断
    DINT;
    //初始化PIE向量表
    InitPieCtrl();
    //清除所有CPU中断标志:
    IER = 0x0000;
    IFR = 0x0000;
    //初始化中断向量表
    InitPieVectTable();

//    board_init();
//    bool read_flag= drv_eeprom_init();
//    //检查参数是否读取成功
//    if(read_flag != true){
//
//    }
//    drv_rdcInit();

        EALLOW;
        PieVectTable.ADCA1_INT = &amp;amp;adca1_isr; //function for ADCA interrupt 1
        EDIS;

        ConfigureADC();
        ConfigureEPWM();
        SetupADCEpwm(0);

        EALLOW;
        CpuSysRegs.PCLKCR0.bit.TBCLKSYNC = 1;
        EDIS;

        EALLOW;
        PieCtrlRegs.PIEIER1.bit.INTx1 = 1;
        EDIS;


        IER |= M_INT1;
        EINT;
        ERTM;
        EALLOW;
         EPwm1Regs.ETSEL.bit.SOCAEN = 1;
         EPwm1Regs.TBCTL.bit.CTRMODE = 0;
         EDIS;
	 while(1){
//	     bsp_sci_send(&amp;amp;SciaRegs,bb);
//	     delay_ms(50);

//	     if(aa==1){

//	         aa=0;
//	     }

	 }
}
#define RESULTS_BUFFER_SIZE 256
uint16_t AdcaResults[RESULTS_BUFFER_SIZE]={0},resultsIndex=0;

interrupt void adca1_isr(void){

    AdcaResults[resultsIndex++] = AdcaResultRegs.ADCRESULT0;
    if(RESULTS_BUFFER_SIZE &amp;lt;= resultsIndex)
    {
        resultsIndex = 0;

    }
    AdcaRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;

    if(1 == AdcaRegs.ADCINTOVF.bit.ADCINT1)
    {
        AdcaRegs.ADCINTOVFCLR.bit.ADCINT1 = 1; //clear INT1 overflow flag
        AdcaRegs.ADCINTFLGCLR.bit.ADCINT1 = 1; //clear INT1 flag
    }

    PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
}
void ConfigureADC(void)
{
    EALLOW;

    //
    //write configurations
    //
    AdcaRegs.ADCCTL2.bit.PRESCALE = 6; //set ADCCLK divider to /4
    AdcSetMode(ADC_ADCA, ADC_RESOLUTION_12BIT, ADC_SIGNALMODE_SINGLE);

    //
    //Set pulse positions to late
    //
    AdcaRegs.ADCCTL1.bit.INTPULSEPOS = 1;

    //
    //power up the ADC
    //
    AdcaRegs.ADCCTL1.bit.ADCPWDNZ = 1;

    //
    //delay for 1ms to allow ADC time to power up
    //
    DELAY_US(1000);

    EDIS;
}
void ConfigureEPWM(void)
{
    EALLOW;
    // Assumes ePWM clock is already enabled
    EPwm1Regs.ETSEL.bit.SOCAEN    = 0;    // Disable SOC on A group
    EPwm1Regs.ETSEL.bit.SOCASEL    = 4;   // Select SOC on up-count
    EPwm1Regs.ETPS.bit.SOCAPRD = 1;       // Generate pulse on 1st event
    EPwm1Regs.CMPA.bit.CMPA = 0x0800;     // Set compare A value to 2048 counts
    EPwm1Regs.TBPRD = 0x1000;             // Set period to 4096 counts
    EPwm1Regs.TBCTL.bit.CTRMODE = 3;      // freeze counter
    AdcaRegs.ADCINTOVFCLR.bit.ADCINT1 = 1;
    EDIS;
}

//
// SetupADCEpwm - Setup ADC EPWM acquisition window
//
void SetupADCEpwm(Uint16 channel)
{
    Uint16 acqps;

    //
    // Determine minimum acquisition window (in SYSCLKS) based on resolution
    //
    if(ADC_RESOLUTION_12BIT == AdcaRegs.ADCCTL2.bit.RESOLUTION)
    {
        acqps = 14; //75ns
    }
    else //resolution is 16-bit
    {
        acqps = 63; //320ns
    }

    //
    //Select the channels to convert and end of conversion flag
    //
    EALLOW;
    AdcaRegs.ADCSOC0CTL.bit.CHSEL = channel;  //SOC0 will convert pin A0
    AdcaRegs.ADCSOC0CTL.bit.ACQPS = acqps; //sample window is 100 SYSCLK cycles
    AdcaRegs.ADCSOC0CTL.bit.TRIGSEL = 5; //trigger on ePWM1 SOCA/C
    AdcaRegs.ADCINTSEL1N2.bit.INT1SEL = 0; //end of SOC0 will set INT1 flag
    AdcaRegs.ADCINTSEL1N2.bit.INT1E = 1;   //enable INT1 flag
    AdcaRegs.ADCINTFLGCLR.bit.ADCINT1 = 1; //make sure INT1 flag is cleared
    EDIS;
}
&lt;/code&gt;&lt;/pre&gt;</description></item><item><title>RE: TMS320F28379D: 移植例程无法进入中断</title><link>https://e2echina.ti.com/thread/3908175?ContentTypeID=1</link><pubDate>Wed, 22 Jul 2026 03:23:40 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:2453b860-4a76-43d8-b5b0-0c0c656c00c7</guid><dc:creator>boy_z</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3908175?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1082966/tms320f28379d/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;谢谢，我已经通过重新配置工程解决了这个问题&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>TMS320F28377S: 烧写程序后，上电程序不运行，断电立即上电程序能正常运行。</title><link>https://e2echina.ti.com/thread/1085568?ContentTypeID=0</link><pubDate>Tue, 21 Jul 2026 09:32:57 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:4873504d-f7b2-4e66-8350-613b5892e11f</guid><dc:creator>x y</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1085568?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085568/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F28377S&lt;/p&gt;&lt;p&gt;TMS320F28377S 烧写程序后，上电程序不运行，断电立即上电程序能正常运行。这个要怎么解决这个问题。&lt;/p&gt;</description></item><item><title>RE: TMS320F28377S: 烧写程序后，上电程序不运行，断电立即上电程序能正常运行。</title><link>https://e2echina.ti.com/thread/3908174?ContentTypeID=1</link><pubDate>Wed, 22 Jul 2026 03:17:14 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:70d981db-481c-45cb-ac82-03b7663f7bb4</guid><dc:creator>Taylor</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3908174?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085568/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;请参考下面帖子&lt;/p&gt;
&lt;p&gt;&lt;a href="https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085379/tms320f28377s"&gt;(+) TMS320F28377S: 板子上电程序不运行，下电后在快速上电程序能运行。 - C2000&lt;span class="emoticon ui-tip" title="Tm"&gt;&lt;img alt="Tm" src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/6175.svg" /&gt;&lt;/span&gt;︎ 微控制器论坛 - C2000 微控制器 - E2E&lt;span class="emoticon ui-tip" title="Tm"&gt;&lt;img alt="Tm" src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/6175.svg" /&gt;&lt;/span&gt;&amp;nbsp;设计支持&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F28377S: 烧写程序后，上电程序不运行，断电立即上电程序能正常运行。</title><link>https://e2echina.ti.com/thread/3908173?ContentTypeID=1</link><pubDate>Wed, 22 Jul 2026 03:16:13 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:80e5d303-3316-4cee-ab02-6ca978506594</guid><dc:creator>Taylor</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3908173?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085568/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好，&lt;/p&gt;
&lt;p&gt;已经收到了您的案例，调查需要些时间，感谢您的耐心等待。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F2800137: A float array can't Graph properly</title><link>https://e2echina.ti.com/thread/3908165?ContentTypeID=1</link><pubDate>Wed, 22 Jul 2026 02:06:49 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:d1b1fb4e-03b9-4dc6-b786-af36356b2b1e</guid><dc:creator>Eirwen</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3908165?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085268/tms320f2800137-a-float-array-can-t-graph-properly/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;关于绘制浮点值，请尝试参考下面相关链接：&lt;/p&gt;
&lt;p&gt;&lt;a href="https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1586510/tms320f28p550sj-graphing-floating-point-numbers-from-logger/6114536?tisearch=e2e-sitesearch&amp;amp;keymatch=float%20graph"&gt;TMS320F28P550SJ: Graphing floating point numbers from Logger - C2000 microcontrollers forum - C2000&lt;span class="emoticon" data-url="https://e2echina.ti.com/cfs-file/__key/system/emoji/2122.svg" title="Tm"&gt;&amp;#x2122;&lt;/span&gt;︎ microcontrollers - TI E2E support forums&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1604069/tms320f28388d-ccs-graph-time-not-plotting-float-buffer-correctly-in-ccs-20-4?tisearch=e2e-sitesearch&amp;amp;keymatch=float%2520graph"&gt;TMS320F28388D: CCS Graph (Time) not plotting float buffer correctly in CCS 20.4 - C2000 microcontrollers forum - C2000&lt;span class="emoticon" data-url="https://e2echina.ti.com/cfs-file/__key/system/emoji/2122.svg" title="Tm"&gt;&amp;#x2122;&lt;/span&gt;︎ microcontrollers - TI E2E support forums&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="https://e2e.ti.com/support/tools/code-composer-studio-group/ccs/f/code-composer-studio-forum/1566734/codecomposer-20-3-0-graphs-changed-broken/6057813?tisearch=e2e-sitesearch&amp;amp;keymatch=float%2525252520graph"&gt;CODECOMPOSER: 20.3.0 Graphs Changed/Broken - Code Composer Studio forum - Code Composer Studio&lt;span class="emoticon" data-url="https://e2echina.ti.com/cfs-file/__key/system/emoji/2122.svg" title="Tm"&gt;&amp;#x2122;&lt;/span&gt;︎ - TI E2E support forums&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>TMS320F2800137: A float array can't Graph properly</title><link>https://e2echina.ti.com/thread/1085268?ContentTypeID=0</link><pubDate>Sat, 18 Jul 2026 05:34:48 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:3d199154-8afe-4042-be54-c0fe6042a4e4</guid><dc:creator>zhou qicheng</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1085268?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085268/tms320f2800137-a-float-array-can-t-graph-properly/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F2800137&lt;/p&gt;&lt;p&gt;&amp;nbsp; &lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/455512.image.png" alt="image.png" width="408" height="153" data-temp-id="image.png-250195" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/0412.image.png" alt="image.png" width="155" height="61" data-temp-id="image.png-273557" /&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/57813.image.png" alt="image.png" width="340" height="158" data-temp-id="image.png-136904" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/38562.image.png" alt="image.png" width="212" height="43" data-temp-id="image.png-53191" /&gt;&lt;/p&gt;
&lt;p&gt;Hi, I want to monitor the variable &amp;#39;electronic angle&amp;#39;. I assigned it to an array, but I can&amp;#39;t plot it. It prompts that only integer variables can be used this way. The &amp;#39;electronic angle&amp;#39; is of float type, but it displays fine in the documentation. How should I do this? A float array can&amp;#39;t display properly, but a single variable works.&lt;/p&gt;</description></item><item><title>TMS320F28377S: 时钟电源都正常，上电程序不运行，快速断电在立刻上电程序可以运行</title><link>https://e2echina.ti.com/thread/1085542?ContentTypeID=0</link><pubDate>Tue, 21 Jul 2026 01:10:48 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:10361721-f93c-463a-b28c-479baa6509d9</guid><dc:creator>x y</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1085542?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085542/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F28377S&lt;/p&gt;&lt;p&gt;时钟电源都正常，上电程序不运行，快速断电在立刻上电程序可以运行。&lt;/p&gt;</description></item><item><title>RE: TMS320F28377S: 时钟电源都正常，上电程序不运行，快速断电在立刻上电程序可以运行</title><link>https://e2echina.ti.com/thread/3907380?ContentTypeID=1</link><pubDate>Tue, 21 Jul 2026 01:12:50 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:4ef9f436-aad2-4e41-a292-8d0d617c3428</guid><dc:creator>FRANK1</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3907380?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085542/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;看一下我同事给你的回复。&lt;/p&gt;
&lt;p&gt;&lt;a href="https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085379/tms320f28377s"&gt;(+) TMS320F28377S: 板子上电程序不运行，下电后在快速上电程序能运行。 - C2000&lt;span class="emoticon" data-url="https://e2echina.ti.com/cfs-file/__key/system/emoji/2122.svg" title="Tm"&gt;&amp;#x2122;&lt;/span&gt;︎ 微控制器论坛 - C2000 微控制器 - E2E&lt;span class="emoticon" data-url="https://e2echina.ti.com/cfs-file/__key/system/emoji/2122.svg" title="Tm"&gt;&amp;#x2122;&lt;/span&gt;&amp;nbsp;设计支持&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F28377S: 时钟电源都正常，上电程序不运行，快速断电在立刻上电程序可以运行</title><link>https://e2echina.ti.com/thread/3907379?ContentTypeID=1</link><pubDate>Tue, 21 Jul 2026 01:12:08 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:aebab2fd-0b5a-4598-b972-4e7c04de238f</guid><dc:creator>FRANK1</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3907379?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085542/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;感谢您对TI产品的关注！&lt;br /&gt;关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F28377S: 板子上电程序不运行，下电后在快速上电程序能运行。</title><link>https://e2echina.ti.com/thread/3907377?ContentTypeID=1</link><pubDate>Tue, 21 Jul 2026 00:25:41 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:2f5b1556-bc5a-4ea0-bc43-975989849dbb</guid><dc:creator>Alice</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3907377?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085379/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好，&amp;nbsp; &amp;nbsp; &amp;nbsp;&amp;nbsp; &amp;nbsp; &amp;nbsp;&lt;/p&gt;
&lt;p&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;上电时不工作，&lt;span&gt;而快速上下电时工作，很可能是由于电源电压的上升/下降斜率较小，导致上电时电源稳定较慢，使XRS低电平有效时间不足。&lt;/span&gt;&lt;/p&gt;
&lt;p&gt;&lt;span&gt;&amp;nbsp; &amp;nbsp; &amp;nbsp;请参考&lt;a href="https://www.ti.com/lit/ds/symlink/tms320f28377s.pdf"&gt;数据手册&lt;/a&gt;&amp;ldquo;Figure 6-5. Power-on Reset&amp;rdquo; 和&amp;ldquo;Figure 6-4. Reset Circuit&amp;rdquo;&amp;nbsp;。&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>TMS320F28377S: 板子上电程序不运行，下电后在快速上电程序能运行。</title><link>https://e2echina.ti.com/thread/1085379?ContentTypeID=0</link><pubDate>Mon, 20 Jul 2026 09:14:08 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:16f9aa22-c333-4213-8f0d-a21ffafab567</guid><dc:creator>x y</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1085379?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085379/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F28377S&lt;/p&gt;&lt;p&gt;板子上电程序不运行，下电后在快速上电程序能运行。&lt;/p&gt;</description></item><item><title>RE: TMS320F28377S: 板子上电程序不运行，下电后在快速上电程序能运行。</title><link>https://e2echina.ti.com/thread/3906740?ContentTypeID=1</link><pubDate>Mon, 20 Jul 2026 09:44:57 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:7a673eb5-7419-4bea-b5ae-1ffd0265d568</guid><dc:creator>Daniel</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3906740?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085379/tms320f28377s/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;已经收到了您的案例，调查需要些时间，感谢您的耐心等待&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>TMS320F28335: SPI中断标志位问题</title><link>https://e2echina.ti.com/thread/1084305?ContentTypeID=0</link><pubDate>Tue, 14 Jul 2026 02:14:43 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:528d2f95-aec5-4c69-85cd-63664271f5d0</guid><dc:creator>TI Thanks</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1084305?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084305/tms320f28335-spi/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F28335&lt;/p&gt;&lt;p&gt;SPI在非FIFO模式下，使用中断，在中断函数中不清除INT_FLAG，为什么不能一直进入中断函数？&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/2438.image.png" alt="image.png" data-temp-id="image.png-39077" /&gt;&lt;/p&gt;</description></item><item><title>RE: TMS320F28335: SPI中断标志位问题</title><link>https://e2echina.ti.com/thread/3906722?ContentTypeID=1</link><pubDate>Mon, 20 Jul 2026 02:49:18 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:02ffc008-9734-46de-a3d0-5beade220f06</guid><dc:creator>Eirwen</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3906722?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084305/tms320f28335-spi/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;可以尝试参考C2000WARE中的TMS320F28335 spi interrupt例程：&lt;/p&gt;
&lt;p&gt;&lt;a href="https://dev.ti.com/tirex/explore/node?isTheia=false&amp;amp;node=A__ACUz7gJvlCRWM91g.8iJuw__C2000WARE__1kRFgrO__LATEST"&gt;dev.ti.com/.../node&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F280049: TIMD-1022 中 在谷值开关模式下，我看到更新了CMPC CMPA CMPB 但是没找到更新TBPRD的 代码，也没找到 更新相位的代码，那是怎么实现变频的？</title><link>https://e2echina.ti.com/thread/3906717?ContentTypeID=1</link><pubDate>Mon, 20 Jul 2026 02:04:49 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:fbaba5d2-11d8-4973-ac44-2a1b2c1b7c2e</guid><dc:creator>Daniel</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3906717?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084936/tms320f280049-timd-1022-cmpc-cmpa-cmpb-tbprd/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;官方给出相关说明文档：&lt;/p&gt;
&lt;p&gt;&lt;a id="" href="https://www.ti.com.cn/cn/lit/pdf/spracz1"&gt;https://www.ti.com.cn/cn/lit/pdf/spracz1&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a id="" href="https://www.ti.com.cn/cn/lit/pdf/zhcaa18"&gt;https://www.ti.com.cn/cn/lit/pdf/zhcaa18&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;相关帖子说明&lt;/p&gt;
&lt;p&gt;&lt;a href="https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1539368/c2000ware-digitalpower-sdk-anpc-3-phase-inverter-code?tisearch=e2e-sitesearch&amp;amp;keymatch=TMS320F280049%25252520%25252520%25252520inverter"&gt;C2000WARE-DIGITALPOWER-SDK：ANPC 三相逆变器代码 - C2000 微控制器论坛 - C2000&lt;span class="emoticon" data-url="https://e2echina.ti.com/cfs-file/__key/system/emoji/2122.svg" title="Tm"&gt;&amp;#x2122;&lt;/span&gt;︎ 微控制器 - TI E2E 支持论坛&lt;/a&gt;&lt;/p&gt;
&lt;p&gt;&lt;a href="https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/728141/tms320f280049-sample-code-for-motor-and-inverter-application?tisearch=e2e-sitesearch&amp;amp;keymatch=TMS320F280049%25252525252525252520%25252525252525252520%25252525252525252520inverter"&gt;TMS320F280049: Sample code for Motor and Inverter application - C2000 microcontrollers forum - C2000&lt;span class="emoticon" data-url="https://e2echina.ti.com/cfs-file/__key/system/emoji/2122.svg" title="Tm"&gt;&amp;#x2122;&lt;/span&gt;︎ microcontrollers - TI E2E support forums&lt;/a&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>TMS320F280049: TIMD-1022 中 在谷值开关模式下，我看到更新了CMPC CMPA CMPB 但是没找到更新TBPRD的 代码，也没找到 更新相位的代码，那是怎么实现变频的？</title><link>https://e2echina.ti.com/thread/1084936?ContentTypeID=0</link><pubDate>Fri, 17 Jul 2026 10:04:06 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:2896947a-e523-4954-814c-0fd5da470dc5</guid><dc:creator>kun liu</dc:creator><slash:comments>3</slash:comments><comments>https://e2echina.ti.com/thread/1084936?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084936/tms320f280049-timd-1022-cmpc-cmpa-cmpb-tbprd/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F280049&lt;/p&gt;&lt;p&gt;TIMD-1022 中 在谷值开关模式下，我看到更新了CMPC CMPA CMPB 但是没找到更新TBPRD的 代码，也没找到 更新相位的代码，那是怎么实现变频的？&lt;/p&gt;</description></item><item><title>TMS320F280037C: 对DCCAP=1表示疑惑？</title><link>https://e2echina.ti.com/thread/1084850?ContentTypeID=0</link><pubDate>Fri, 17 Jul 2026 07:47:02 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:12392ad9-2057-4411-9423-d10210061394</guid><dc:creator>BabaXibo</dc:creator><slash:comments>2</slash:comments><comments>https://e2echina.ti.com/thread/1084850?ContentTypeID=0</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084850/tms320f280037c-dccap-1/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;b&gt;Part Number:&lt;/b&gt; TMS320F280037C&lt;/p&gt;&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/8171.image.png" alt="image.png" width="565" height="265" data-temp-id="image.png-309052" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/5428.image.png" alt="image.png" width="638" height="425" data-temp-id="image.png-156768" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/7585.image.png" alt="image.png" width="637" height="363" data-temp-id="image.png-122202" /&gt;&lt;/p&gt;
&lt;p&gt;&lt;img src="https://e2echina.ti.com/cfs-file/__key/communityserver-discussions-components-files/56/0652.image.png" alt="image.png" data-temp-id="image.png-75010" /&gt;&lt;/p&gt;
&lt;p&gt;如上图所示，DCEVTFILT上升沿作为EPWM1的sync信号，EPWM1计数器TCR清零，ZRO时PWM1A置高，CAU时置低，如上图所示CMPA=1200（10us）。&lt;/p&gt;
&lt;p&gt;当EPwm1Regs.DCFWINDOW=0或者大于DCEVTFILT脉宽（取EPwm1Regs.DCFWINDOW=130）时，为什么EPwm1Regs.DCCAP=1？而不是6000？&lt;/p&gt;</description></item><item><title>RE: TMS320F280037C: 对DCCAP=1表示疑惑？</title><link>https://e2echina.ti.com/thread/3906708?ContentTypeID=1</link><pubDate>Mon, 20 Jul 2026 00:46:40 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:96d510db-72cf-4bdf-9b26-9f4d01ab1abb</guid><dc:creator>Daniel</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3906708?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084850/tms320f280037c-dccap-1/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;0.17.2.78 DCCAP Register (Offset = CFh) [Reset = 0000h]&lt;/p&gt;
&lt;p&gt;请您参考值这部分说明。&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F280049: TIMD-1022 中 在谷值开关模式下，我看到更新了CMPC CMPA CMPB 但是没找到更新TBPRD的 代码，也没找到 更新相位的代码，那是怎么实现变频的？</title><link>https://e2echina.ti.com/thread/3906697?ContentTypeID=1</link><pubDate>Sun, 19 Jul 2026 23:23:47 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:23922ed8-75a6-4c1e-a419-dd865a21db07</guid><dc:creator>Lydia</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3906697?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084936/tms320f280049-timd-1022-cmpc-cmpa-cmpb-tbprd/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;&lt;span style="font-family:&amp;#39;MS Gothic&amp;#39;;" lang="zh-CN"&gt;您好，&lt;/span&gt;&lt;span style="font-family:&amp;#39;MS Gothic&amp;#39;;" lang="en-US"&gt;已&lt;/span&gt;&lt;span style="font-family:&amp;#39;Microsoft YaHei&amp;#39;;" lang="en-US"&gt;经&lt;/span&gt;&lt;span style="font-family:&amp;#39;MS Gothic&amp;#39;;" lang="en-US"&gt;收到了您的案例，&lt;/span&gt;&lt;span style="font-family:&amp;#39;Microsoft YaHei&amp;#39;;" lang="en-US"&gt;调查&lt;/span&gt;&lt;span style="font-family:&amp;#39;MS Gothic&amp;#39;;" lang="en-US"&gt;需要些&lt;/span&gt;&lt;span style="font-family:&amp;#39;Microsoft YaHei&amp;#39;;" lang="en-US"&gt;时间&lt;/span&gt;&lt;span style="font-family:&amp;#39;MS Gothic&amp;#39;;" lang="en-US"&gt;，感&lt;/span&gt;&lt;span style="font-family:&amp;#39;Microsoft YaHei&amp;#39;;" lang="en-US"&gt;谢&lt;/span&gt;&lt;span style="font-family:&amp;#39;MS Gothic&amp;#39;;" lang="en-US"&gt;您的耐心等待。&lt;/span&gt;&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F2800137: A float array can't Graph properly</title><link>https://e2echina.ti.com/thread/3906696?ContentTypeID=1</link><pubDate>Sun, 19 Jul 2026 23:21:34 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:a685c5b4-3487-4dc2-92e5-ce0c06a6a38c</guid><dc:creator>Lydia</dc:creator><slash:comments>1</slash:comments><comments>https://e2echina.ti.com/thread/3906696?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1085268/tms320f2800137-a-float-array-can-t-graph-properly/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;Hello, we have received your case and the investigation will take some time. Thank you for your patience.&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F280049: TIMD-1022 中 在谷值开关模式下，我看到更新了CMPC CMPA CMPB 但是没找到更新TBPRD的 代码，也没找到 更新相位的代码，那是怎么实现变频的？</title><link>https://e2echina.ti.com/thread/3905213?ContentTypeID=1</link><pubDate>Fri, 17 Jul 2026 11:19:18 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:cd38ff2b-d8ed-40a0-a350-5e4dde6b3bac</guid><dc:creator>kun liu</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3905213?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084936/tms320f280049-timd-1022-cmpc-cmpa-cmpb-tbprd/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;是通过 DCXEVTY 事件 直接 把0通道 TBCTR里吗？如果是 那一直在更新的CMPC 是用来干啥的？&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item><item><title>RE: TMS320F280037C: 对DCCAP=1表示疑惑？</title><link>https://e2echina.ti.com/thread/3905082?ContentTypeID=1</link><pubDate>Fri, 17 Jul 2026 10:04:20 GMT</pubDate><guid isPermaLink="false">91561404-af28-475a-b96b-cb6cbaadd097:68f99277-c797-4762-b775-711708e59074</guid><dc:creator>Daniel</dc:creator><slash:comments>0</slash:comments><comments>https://e2echina.ti.com/thread/3905082?ContentTypeID=1</comments><wfw:commentRss>https://e2echina.ti.com/support/microcontrollers/c2000/f/c2000-microcontrollers-forum/1084850/tms320f280037c-dccap-1/rss?ContentTypeId=0</wfw:commentRss><description>&lt;p&gt;您好&lt;/p&gt;
&lt;p&gt;已经收到了您的案例，调查需要些时间，感谢您的耐心等待&lt;/p&gt;&lt;div style="clear:both;"&gt;&lt;/div&gt;</description></item></channel></rss>