製品について

[kiyoshi]

当社顧客向けのToradexモジュール搭載カスタムボードでUSBのCompliance試験を実施しています。

その際、USB　SSTXが、相手が接続されて居ないにもかかわらず、ずっと何らかの信号を出力しており何が起こるか解らないので、問題ではないかと議論になっています。

Toradex社に確認したところ、NXPさんのSoC搭載品（且つ貴社BSP）は、全て同様の挙動をしているのでToradexでは解らないと回答が届きました。

実際のところ上記挙動は仕様の範疇なのでしょうか？

恐れ入りますが、ご教示いただければ幸いです。

対象製品：Apalis iMX8 QuadMax 4GB Wi-Fi / Bluetooth IT

PN：0037

https://www.toradex.com/ja-jp/computer-on-modules/apalis-arm-family/nxp-imx-8?_gl=1%2A2d4ypx%2A_up%2...

資料を下記URLよりダウンロードしてください。

■ リンクURL
https://link.directcloud.jp/kjqbm9Co1u

■ パスワード
EA7T84IC

よろしくお願いいたします。

[kiyoshi]

In response to the previous question
Toradex/Alvaro has asked us a question in response to the previous question.
How is it going?

Thank you in advance for your response.

[joanxie]

already mailed to you

[Rita_Wang]

Could you describe it in English?

[kiyoshi]

We are conducting a USB compliance test on a custom board with a Toradex module for our customer.

In doing so, we are discussing whether the USB SSTX is a problem because it is outputting a signal all the time even though the other party is not connected or not resolved.

After checking with Toradex, we received a response that all of NXP's SoC-based products (potentially your BSP) have the same behavior and Toradex will not solve the problem.

In fact, the above behavior is within the scope of the specification, please?

We would be grateful if you could provide us with some clarification.

Target product: Apalis iMX8 QuadMax 4GB Wi-Fi / Bluetooth IT

PN: 0037

https://www.toradex.com/ja-jp/computer-on-modules/apalis-arm-family/nxp-imx-8?_gl=1%2A2d4ypx%2A_up%2...

Please download the document from the following URL

■Link URL
https://link.directcloud.jp/kjqbm9Co1u

■Password
EA7T84IC

Thank you for your cooperation.

[Rita_Wang]

We have the AN here I can share to you https://www.nxp.com/docs/en/application-note/AN12409.pdf

[kiyoshi]

We will confirm this.

Thank you for your cooperation.

[Rita_Wang]

You are welcome.

[Rita_Wang]

You are welcome