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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML><HEAD> <META NAME="GENERATOR" CONTENT="langdoc 1.0.1"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> <TITLE> C51 USB Library </TITLE> </HEAD> <BODY> <TABLE BORDER="1" WIDTH="100%" CELLPADDING="6"> <TR> <TD ALIGN=CENTER VALIGN=MIDDLE BGCOLOR=BLUE> <H1> <FONT COLOR="#FFFFFF"> C51 USB Library </FONT> </H1> </TD> </TR> </TABLE><P ALIGN=RIGHT> <I></I> </P><H2> Library Usage </H2><H3> Package Description </H3><H3> Package Summary </H3><H4> Constants </H4><PRE></PRE><H4> Global Variables </H4><PRE></PRE><H4> Macros </H4><PRE>USB clock management <A HREF="#wSWAP">wSWAP</A> </PRE><H4> Functions </H4><PRE><A HREF="#configure_usb_clock">configure_usb_clock</A> <A HREF="#usb_configure_endpoint">usb_configure_endpoint</A> <A HREF="#usb_get_nb_byte">usb_get_nb_byte</A> <A HREF="#usb_get_nb_byte_epw">usb_get_nb_byte_epw</A> <A HREF="#usb_halt_endpoint">usb_halt_endpoint</A> <A HREF="#usb_read_packet">usb_read_packet</A> <A HREF="#usb_reset_endpoint">usb_reset_endpoint</A> <A HREF="#usb_select_endpoint_interrupt">usb_select_endpoint_interrupt</A> <A HREF="#usb_send_ep0_packet">usb_send_ep0_packet</A> <A HREF="#usb_send_packet">usb_send_packet</A> </PRE><H3> Files List </H3><UL><LI><B><A NAME="usb_drv.c"></A> usb_drv.c</B><BR></LI><UL>This file contains the USB driver routines.</UL><LI><B><A NAME="usb_drv.h"></A> usb_drv.h</B><BR></LI><UL>This file contains the USB low level driver definition</UL></UL><H3> Included Files </H3><UL><LI><B>config.h </B><BR></LI><LI><B><A HREF="#usb_drv.h">usb_drv.h</A> </B><BR></LI></UL><H2> Constant Macros </H2><H2> Global Variables </H2><H2> Function Macros </H2><A NAME="USB clock management"></A><H3> USB clock management </H3><TABLE BORDER="0" WIDTH="100 %" BGCOLOR="#D6E8FF" CELLPADDING="6"><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_set_EXT48 ( ) ( PLLCON |= MSK_EXT48 ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_clear_EXT48 ( ) ( PLLCON &= ~MSK_EXT48 ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Pll_stop ( ) ( PLLCON &= ~MSK_PLLEN ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Pll_set_div ( n ) ( PLLDIV = n ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Pll_enable ( ) ( PLLCON |= MSK_PLLEN ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>/ * _____ D E C L A R A T I O N ______________________________________________ * / </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>void <A HREF="#usb_configure_endpoint">usb_configure_endpoint</A> ( Uchar , Uchar ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>Uchar <A HREF="#usb_get_nb_byte">usb_get_nb_byte</A> ( void ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>Uint16 <A HREF="#usb_get_nb_byte_epw">usb_get_nb_byte_epw</A> ( void ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>Uchar * <A HREF="#usb_send_ep0_packet">usb_send_ep0_packet</A> ( Uchar * , Uchar ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>Uchar * <A HREF="#usb_send_packet">usb_send_packet</A> ( Uchar , Uchar * , Uchar ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>Uchar * <A HREF="#usb_read_packet">usb_read_packet</A> ( Uchar , Uchar * , Uchar ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>void <A HREF="#usb_reset_endpoint">usb_reset_endpoint</A> ( Uchar ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>Uchar usb_select_enpoint_interrupt ( void ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>void <A HREF="#usb_halt_endpoint">usb_halt_endpoint</A> ( Uchar ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>void <A HREF="#configure_usb_clock">configure_usb_clock</A> ( void ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#endif / * _USB_DRV_H_ * / </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD></TABLE><P>These macros manage the USB clock.<P><HR><A NAME="wSWAP"></A><H3> wSWAP </H3><TABLE BORDER="0" WIDTH="100 %" BGCOLOR="#D6E8FF" CELLPADDING="6"><TR> <TD VALIGN=MIDDLE><PRE>#define <A HREF="#wSWAP">wSWAP</A> ( x ) ( ( ( ( x ) >>8 ) &0x00FF ) | ( ( ( x ) <<8 ) &0xFF00 ) ) ; </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>/ * M * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * NAME: dwSWAP </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * PARAMS: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * x : ( Uint32 ) the 32 bit double word to swap </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * return: ( Uint32 ) the 32 bit double word x with the 4 bytes swaped </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * PURPOSE: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * This macro swaps the Uchar order in double words. </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * EXAMPLE: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * NOTE: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * REQUIREMENTS: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * / </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define dwSWAP ( x ) ( ( ( ( x ) >>24 ) &0x000000FF ) | ( ( ( x ) >>8 ) &0x0000FF00 ) | ( ( ( x ) <<24 ) &0xFF000000 ) | ( ( ( x ) <<8 ) &0x00FF0000 ) ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>/ * M * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * NAME: General endpoint management </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * PARAMS: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * PURPOSE: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * These macros manage the common features of the endpoints </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * EXAMPLE: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * NOTE: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * REQUIREMENTS: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * / </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_select_ep ( e ) ( UEPNUM = e ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_configure_ep_type ( x ) ( UEPCONX = x ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_set_stall_request ( ) ( UEPSTAX |= MSK_STALLRQ ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_clear_stall_request ( ) ( UEPSTAX &= ~MSK_STALLRQ ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_clear_stalled ( ) ( UEPSTAX &= ~MSK_STALLED ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_stall_requested ( ) ( UEPSTAX & MSK_STALLRQ ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_stall_sent ( ) ( UEPSTAX & MSK_STALLED ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_read_byte ( ) ( UEPDATX ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_write_byte ( x ) ( UEPDATX = x ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>#define Usb_endpoint_interrupt ( ) ( UEPINT != 0 ) </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE></PRE></TD><TR> <TD VALIGN=MIDDLE><PRE>/ * M * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * NAME: OUT endpoint management </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * PARAMS: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * PURPOSE: </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * These macros manage the OUT endpoints. </PRE></TD><TR> <TD VALIGN=MIDDLE><PRE> * ---------------------------------------------------------------------------- </PRE></TD>⌨️ 快捷键说明
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