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STM32F407 FS复合设备MSC失败,Composite demo MSC fail when use STM32F407 FS core #2

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xtoolbox opened this issue Dec 13, 2019 · 1 comment

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@xtoolbox
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xtoolbox commented Dec 13, 2019

在复合设备例程中,如果使用STM32F407的FS USB内核会造成U盘枚举失败。原因是STM32F407没有4号端点。
解决办法,去掉不需要的接口,在 STM32F407的FS core上不使用端点4.

In the composite device demo, the MSC class use enpoint 4 for data transfer. If we USB FS core on STM32F407, the MSC will fail to transfer data by a transaction error.
Solution, do not use ep 4 when select STM32F407 FS core.

@xtoolbox
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xtoolbox commented Dec 13, 2019

TeenyDT没有正确处理STM32F407的端点数量

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