imxrt1052 usb deinit

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imxrt1052 usb deinit

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ccc_clive
Contributor III

在boot中,使用了usb disk ,在跳转到app时,需要对usb deinit,因为app也需要用到usb,但是在sdk中没找到usb deinit的样例呢

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Sam_Gao
NXP Employee
NXP Employee

@ccc_clive 请问,你用的哪个示例代码、SDK版本多少?具体usb部分的代码链接给下。

 

https://github.com/nxp-mcuxpresso/mcuxsdk-examples/tree/main/_boards/evkbimxrt1050/usb_examples 

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965件の閲覧回数
ccc_clive
Contributor III
2.13 usb_host_msd_fat的例程
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952件の閲覧回数
Sam_Gao
NXP Employee
NXP Employee

@ccc_clive

抱歉,你是想知道‘host, device’之间的切换吗?

在Linux, usb相关driver有标准化的init, deinit。但RTOS或Bare Metal中涉及到不同的逻辑功能,并没有标准的usb init, usb deinit. 

你可以参考 host转device的demo: https://github.com/nxp-mcuxpresso/mcuxsdk-examples/blob/main/_boards/evkbimxrt1050/usb_examples/usb_...

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