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57 lines
2.2 KiB
Markdown
57 lines
2.2 KiB
Markdown
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# group `udc_desc_group` {#group__udc__desc__group}
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## Summary
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Members | Descriptions
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--------------------------------|---------------------------------------------
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`define `[`UDC_DESC_STORAGE`](#group__udc__desc__group_1gae086959cec07a2e71ab069e25a51764f) | Defines the memory's location of USB descriptors.
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`define `[`UDC_DATA`](#group__udc__desc__group_1ga1659a2f0b429f07a985a8faaa3fb27b1) |
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`define `[`UDC_BSS`](#group__udc__desc__group_1ga198e5cdf3367aa0b35821417b7ede0b2) |
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`struct `[`udc_config_speed_t`](#structudc__config__speed__t) | Configuration descriptor and UDI link for one USB speed.
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`struct `[`udc_config_t`](#structudc__config__t) | All information about the USB Device.
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## Members
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#### `define `[`UDC_DESC_STORAGE`](#group__udc__desc__group_1gae086959cec07a2e71ab069e25a51764f) {#group__udc__desc__group_1gae086959cec07a2e71ab069e25a51764f}
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Defines the memory's location of USB descriptors.
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By default the Descriptor is stored in RAM (UDC_DESC_STORAGE is defined empty).
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If you have need to free RAM space, it is possible to put descriptor in flash in following case:
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* USB driver authorize flash transfer (USBB on UC3 and USB on Mega)
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* USB Device is not high speed (UDC no need to change USB descriptors)
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For UC3 application used "const".
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For Mega application used "code".
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#### `define `[`UDC_DATA`](#group__udc__desc__group_1ga1659a2f0b429f07a985a8faaa3fb27b1) {#group__udc__desc__group_1ga1659a2f0b429f07a985a8faaa3fb27b1}
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#### `define `[`UDC_BSS`](#group__udc__desc__group_1ga198e5cdf3367aa0b35821417b7ede0b2) {#group__udc__desc__group_1ga198e5cdf3367aa0b35821417b7ede0b2}
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# struct `udc_config_speed_t` {#structudc__config__speed__t}
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Configuration descriptor and UDI link for one USB speed.
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## Summary
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Members | Descriptions
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--------------------------------|---------------------------------------------
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## Members
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# struct `udc_config_t` {#structudc__config__t}
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All information about the USB Device.
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## Summary
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Members | Descriptions
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--------------------------------|---------------------------------------------
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## Members
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