TMS320F280039C: 芯片异常复位问题

您好：

      用F280039C开发过程中，程序分为bootloader区与APP区，有一台机器在远程升级APP中机器断电，重新上电后发现芯片指示灯异常，查看复位引脚XRS pin会被周期性拉低52.2us。

     用示波器查看3.3V供电与晶振时钟频率20MHZ都正常。

     单步调试程序发现程序运行一直停留在这两句指令。3fb8b9  7625 ESTOP0  ;   3fb8ba  6F00  SB  0,  UNC;

复位引脚XRS pin周期性拉低如下图

请教一下：为什么运行一直停留在这台指令  3fb8ba  6F00  SB  0,  UNC？为什么会周期性复位芯片？

Links：

您好，

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

TRANSLATE with x

English

Arabic
Hebrew
Polish

Bulgarian
Hindi
Portuguese

Catalan
Hmong Daw
Romanian

Chinese Simplified
Hungarian
Russian

Chinese Traditional
Indonesian
Slovak

Czech
Italian
Slovenian

Danish
Japanese
Spanish

Dutch
Klingon
Swedish

English
Korean
Thai

Estonian
Latvian
Turkish

Finnish
Lithuanian
Ukrainian

French
Malay
Urdu

German
Maltese
Vietnamese

Greek
Norwegian
Welsh

Haitian Creole
Persian

TRANSLATE with

COPY THE URL BELOW

Back

EMBED THE SNIPPET BELOW IN YOUR SITE

Enable collaborative features and customize widget: Bing Webmaster Portal
Back

,

Links：

由于监视程序重置，芯片会定期重置。 在WD复位的情况下，XRSn在INTOSC1 * 512 = 51.2微秒下拉。

https://www.ti.com/lit/ug/spruiw9c/spruiw9c.pdf?ts=1744062233240

设备配置为哪种引导模式？ 由于设备在地址0x3FB8B9-0x3FB8BA上运行，这意味着它正在进入等待引导模式。

TRANSLATE with x

English

Arabic
Hebrew
Polish

Bulgarian
Hindi
Portuguese

Catalan
Hmong Daw
Romanian

Chinese Simplified
Hungarian
Russian

Chinese Traditional
Indonesian
Slovak

Czech
Italian
Slovenian

Danish
Japanese
Spanish

Dutch
Klingon
Swedish

English
Korean
Thai

Estonian
Latvian
Turkish

Finnish
Lithuanian
Ukrainian

French
Malay
Urdu

German
Maltese
Vietnamese

Greek
Norwegian
Welsh

Haitian Creole
Persian

TRANSLATE with

COPY THE URL BELOW

Back

EMBED THE SNIPPET BELOW IN YOUR SITE

Enable collaborative features and customize widget: Bing Webmaster Portal
Back

,

wongshua：

您好；
您回复的图片无法查看
器件引导模式配置：GPIO32引脚上拉，GPIO24引脚用作SCI的发送引脚，这两个IO电平都是常高的，可以进入boot程序，说明已经跳过引导模式，已经运行一小段代码，运行到flash进行CRC校验的程序中，就进入了ESTOP0，汇编代码是3fb8ba  6F00  SB  0,  UNC

,

Links：

wongshua 说：说明已经跳过引导模式，已经运行一小段代码，运行到flash进行CRC校验的程序中，就进入了ESTOP0，汇编代码是3fb8ba  6F00  SB  0,  UNC

您是说器件能够成功启动到闪存吗？ 换句话说、当器件在闪存中执行程序时、是否会发生错误？

TRANSLATE with x

English

Arabic
Hebrew
Polish

Bulgarian
Hindi
Portuguese

Catalan
Hmong Daw
Romanian

Chinese Simplified
Hungarian
Russian

Chinese Traditional
Indonesian
Slovak

Czech
Italian
Slovenian

Danish
Japanese
Spanish

Dutch
Klingon
Swedish

English
Korean
Thai

Estonian
Latvian
Turkish

Finnish
Lithuanian
Ukrainian

French
Malay
Urdu

German
Maltese
Vietnamese

Greek
Norwegian
Welsh

Haitian Creole
Persian

TRANSLATE with

COPY THE URL BELOW

Back

EMBED THE SNIPPET BELOW IN YOUR SITE

Enable collaborative features and customize widget: Bing Webmaster Portal
Back