teenydt.github.io

TeenyDT

使用lua开发的USB描述符生成工具。生成的描述符可以用在TeenyUSB协议栈和libopencm3的USB协议栈，在线试用线路1，线路2。

lua based USB descriptor generator for TeenyUSB and LibOpenCM3, Try it online, Site1, Site2.

需要lua5.3，require lua5.3

老版本带UI和驱动生成的TeenyDT在这里，Old TeenyDT with GUI and driver generator is moved to here.

生成描述符

lua gen_descriptor.lua <lua_desc_path> [-maxep=7] [-maxmem=512] [-mode=opencm3]
   <lua_desc_path>       path of the lua format descriptor
   -maxep                max endpoint number
   -maxmem               USB memory size
   -mode                 descriptor format, default TeenyUSB, can be set to opencm3

参数说明

Paramter	Description
lua_desc_path	lua格式的USB描述符路径，生成的描述也在此路径下。
-maxep	指定最大的端点号，超出此端点号的端点在生成时会被忽略。
-maxmem	指定USB的内存，当需要的内存超此值时，会报错。
-mode	指定生成的描述符格式,默认为TeenyUSB格式。设置为opencm3时生成libopencm3格式的描述符。

lua格式描述符/ lua format descriptor

return Device {
    strManufacturer = "TeenyUSB",
    strProduct = "TeenyUSB Composite DEMO",
    strSerial = "TUSB123456",
    idVendor = 0x0483,
    idProduct = 0x0011,
    prefix = "COMP",
    Config {
        USB_HID{
            -- Set the Endpoint in a simple way
            ReadEp = EndPoint(IN(2),  Interrupt, 16),
            -- Set the Endpoint in a complex way
            WriteEp = EndPoint{
                bEndpointAddress = OUT(2),
                bmAttributes = Interrupt, -- valid attrs: Interrupt/Bulk/BulkDouble/ISO/Control
                wMaxPacketSize = 16,
                bInterval = 1,
            },
            report = HID_InOut(16),
        },
        -- set the CDC ACM in a simple way
        CDC_ACM{
            EndPoint(IN(8),  Interrupt, 16),
            EndPoint(IN(1), BulkDouble, 32),
            EndPoint(OUT(1),  BulkDouble, 32),
        },
        Interface{
            WCID=WinUSB,
            strInterface = "TeenyUSB WinUSB",
            GUID="{1D4B2365-4749-48EA-B38A-7C6FDDDD7E26}",
            -- Double buffer will disabled, because the IN/OUT use same Ep
            EndPoint(IN(3),  BulkDouble, 32),
            EndPoint(OUT(3), BulkDouble, 32),
        },
        Interface{
            bInterfaceClass = 0x08,        -- MSC
            bInterfaceSubClass = 0x06,     -- SCSI
            bInterfaceProtocol = 0x50,     -- BOT
            -- Double buffer will enabled
            EndPoint(IN(4),  BulkDouble, 64),
            EndPoint(OUT(5), BulkDouble, 64),
        },
   }
}

STM32 USB参数表 Table for STM32 USB Core

Device Type	Max Ep No.	USB Memory
STM32F0xx_FS	7	1024
STM32F10x_FS	7	512
STM32F10x_OTG_FS	3	1280
STM32F2xx_OTG_FS	3	1280
STM32F2xx_OTG_HS	5	4096
STM32F303_BC_FS	7	512
STM32F373x_FS	7	512
STM32F303_DE_FS	7	1024
STM32F4xx_OTG_FS	3	1280
STM32F4xx_OTG_HS	5	4096
STM32F7xx_OTG_FS	5	1280
STM32F7xx_OTG_HS	8	4096
STM32H7xx_OTG_FS	8	1280
STM32H7xx_OTG_HS	8	4096