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Problem with "Can't connect. USBDM device is not open" error

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Problem with "Can't connect. USBDM device is not open" error

‎08-19-2025 10:32 AM
1,340 次查看
gashtaan
Contributor I

I'm developing firmware for MC9S08GB60A MCU in CodeWarrior for MCU 11.1 using USBDM I bought on AliExpress. It's based on MC9S08JS16CWJ MCU. I updated it to the latest USBDM firmware. Everything works OK, I can compile and run/debug the firmware, but only once in during CodeWarrior session. Next time I try to download and run/debug the firmware I got "HC/RS/S12Z GDI Protocol Adapter : Can't connect. USBDM device is not open" error. If I close the CodeWarrior application and open it again, it works OK, but only once. Any idea what is wrong with it?

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‎09-05-2025 04:47 AM
1,001 次查看
gashtaan
Contributor I

Is no one experiencing the same behavior?

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%3CLINGO-SUB%20id%3D%22lingo-sub-2154618%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%22%E6%97%A0%E6%B3%95%E8%BF%9E%E6%8E%A5%E7%9A%84%E9%97%AE%E9%A2%98%E3%80%82USBDM%20%E8%AE%BE%E5%A4%87%E6%9C%AA%E6%89%93%E5%BC%80%20%22%20%E9%94%99%E8%AF%AF%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2154618%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E6%88%91%E6%AD%A3%E5%9C%A8%E4%BD%BF%E7%94%A8%E4%BB%8E%20AliExpress%20%E8%B4%AD%E4%B9%B0%E7%9A%84%20USBDM%20%E5%9C%A8%20CodeWarrior%20for%20MCU%2011.1%20%E4%B8%AD%E4%B8%BA%20MC9S08GB60A%20MCU%20%E5%BC%80%E5%8F%91%E5%9B%BA%E4%BB%B6%E3%80%82%E5%AE%83%E5%9F%BA%E4%BA%8E%20MC9S08JS16CWJ%20MCU%E3%80%82%E6%88%91%E6%8A%8A%E5%AE%83%E6%9B%B4%E6%96%B0%E5%88%B0%E4%BA%86%E6%9C%80%E6%96%B0%E7%9A%84%20USBDM%20%E5%9B%BA%E4%BB%B6%E3%80%82%E4%B8%80%E5%88%87%E6%AD%A3%E5%B8%B8%EF%BC%8C%E6%88%91%E5%8F%AF%E4%BB%A5%E7%BC%96%E8%AF%91%E5%92%8C%E8%BF%90%E8%A1%8C%2F%E8%B0%83%E8%AF%95%E5%9B%BA%E4%BB%B6%EF%BC%8C%E4%BD%86%E5%8F%AA%E8%83%BD%E5%9C%A8%20CodeWarrior%20%E4%BC%9A%E8%AF%9D%E4%B8%AD%E8%BF%90%E8%A1%8C%E4%B8%80%E6%AC%A1%E3%80%82%E4%B8%8B%E4%B8%80%E6%AC%A1%E6%88%91%E5%B0%9D%E8%AF%95%E4%B8%8B%E8%BD%BD%E5%B9%B6%E8%BF%90%E8%A1%8C%2F%E8%B0%83%E8%AF%95%E5%9B%BA%E4%BB%B6%E6%97%B6%EF%BC%8C%E6%88%91%E5%BE%97%E5%88%B0%E4%BA%86%22HC%2FRS%2FS12Z%20GDI%20%E5%8D%8F%E8%AE%AE%E9%80%82%E9%85%8D%E5%99%A8%EF%BC%9A%E6%97%A0%E6%B3%95%E8%BF%9E%E6%8E%A5%E3%80%82USBDM%20%E8%AE%BE%E5%A4%87%E6%97%A0%E6%B3%95%E6%89%93%E5%BC%80%20%22%20%E9%94%99%E8%AF%AF%E3%80%82%E5%A6%82%E6%9E%9C%E6%88%91%E5%85%B3%E9%97%AD%20CodeWarrior%20%E5%BA%94%E7%94%A8%E7%A8%8B%E5%BA%8F%EF%BC%8C%E7%84%B6%E5%90%8E%E5%86%8D%E6%AC%A1%E6%89%93%E5%BC%80%EF%BC%8C%E5%AE%83%E5%B0%B1%E8%83%BD%E6%AD%A3%E5%B8%B8%E8%BF%90%E8%A1%8C%EF%BC%8C%E4%BD%86%E5%8F%AA%E8%83%BD%E8%BF%90%E8%A1%8C%E4%B8%80%E6%AC%A1%E3%80%82%E7%9F%A5%E9%81%93%E5%AE%83%E5%87%BA%E4%BA%86%E4%BB%80%E4%B9%88%E9%97%AE%E9%A2%98%E5%90%97%EF%BC%9F%3C%2FP%3E%3C%2FLINGO-BODY%3E%3CLINGO-SUB%20id%3D%22lingo-sub-2164386%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%20translate%3D%22no%22%3ERe%3A%20Problem%20with%20%22Can't%20connect.%20USBDM%20device%20is%20not%20open%22%20error%3C%2FLINGO-SUB%3E%3CLINGO-BODY%20id%3D%22lingo-body-2164386%22%20slang%3D%22en-US%22%20mode%3D%22CREATE%22%3E%3CP%3E%E6%B2%A1%E6%9C%89%E4%BA%BA%E9%81%87%E5%88%B0%E5%90%8C%E6%A0%B7%E7%9A%84%E8%A1%8C%E4%B8%BA%E5%90%97%EF%BC%9F%3C%2FP%3E%3C%2FLINGO-BODY%3E