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cherryusb #571

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supperthomas opened this issue Jan 7, 2025 · 3 comments
Open

cherryusb #571

supperthomas opened this issue Jan 7, 2025 · 3 comments

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@supperthomas
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USB中文网站 有文档，有视频
CherryUSB使用指南
@supperthomas
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https://cherryusb.cherry-embedded.org/quick_start/rtthread

@supperthomas
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// 以下细节如有出入，请对照 stm32xxx.h 文件修改
// 需要根据硬件实际的 fifo 深度进行修改，默认是最基础的配置
#define CONFIG_USBDEV_EP_NUM 6
#define CONFIG_USB_DWC2_RXALL_FIFO_SIZE (1012 - 16 * 6)
#define CONFIG_USB_DWC2_TX0_FIFO_SIZE (64 / 4)
#define CONFIG_USB_DWC2_TX1_FIFO_SIZE (64 / 4)
#define CONFIG_USB_DWC2_TX2_FIFO_SIZE (64 / 4)
#define CONFIG_USB_DWC2_TX3_FIFO_SIZE (64 / 4)
#define CONFIG_USB_DWC2_TX4_FIFO_SIZE (64 / 4)
#define CONFIG_USB_DWC2_TX5_FIFO_SIZE (64 / 4)

@supperthomas
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当 CONFIG_USBDEV_EP_NUM 为4 时，fifo_num 不得大于 320 字

当 CONFIG_USBDEV_EP_NUM 为6 时，fifo_num 不得大于 1280 字

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@supperthomas