This short program illustrates how to use the DS130x_I2C library. My objective is to share the same RTC with Microchip 18F MCU.

Dependencies:   mbed DebugLibrary

Revision:
0:f30e2135b0db
diff -r 000000000000 -r f30e2135b0db NetServices/drv/usb/UsbInc.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/NetServices/drv/usb/UsbInc.h	Wed Feb 09 13:57:49 2011 +0000
@@ -0,0 +1,193 @@
+
+/*
+Copyright (c) 2010 Donatien Garnier (donatiengar [at] gmail [dot] com)
+ 
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+ 
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+ 
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#ifndef USB_INC_H
+#define USB_INC_H
+
+#include "mbed.h"
+
+#define MIN(a,b) ((a)<(b)?(a):(b))
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+//typedef int32_t RC;
+
+typedef uint8_t byte;
+typedef uint16_t word;
+
+enum UsbErr
+{
+  __USBERR_MIN = -0xFFFF,
+  USBERR_DISCONNECTED,
+  USBERR_NOTFOUND,
+  USBERR_BADCONFIG,
+  USBERR_PROCESSING,
+  USBERR_HALTED, //Transfer on an ep is stalled
+  USBERR_BUSY,
+  USBERR_TDFAIL,
+  USBERR_ERROR,
+  USBERR_OK = 0
+};
+
+
+/* From NXP's USBHostLite stack's usbhost_lpc17xx.h */
+/* Only the types names have been changed to avoid unecessary typedefs */
+
+
+/*
+**************************************************************************************************************
+*                                                 NXP USB Host Stack
+*
+*                                     (c) Copyright 2008, NXP SemiConductors
+*                                     (c) Copyright 2008, OnChip  Technologies LLC
+*                                                 All Rights Reserved
+*
+*                                                  www.nxp.com
+*                                               www.onchiptech.com
+*
+* File           : usbhost_lpc17xx.h
+* Programmer(s)  : Ravikanth.P
+* Version        :
+*
+**************************************************************************************************************
+*/
+
+
+
+/*
+**************************************************************************************************************
+*                                  OHCI OPERATIONAL REGISTER FIELD DEFINITIONS
+**************************************************************************************************************
+*/
+
+                                            /* ------------------ HcControl Register ---------------------  */
+#define  OR_CONTROL_CLE                 0x00000010
+#define  OR_CONTROL_BLE                 0x00000020
+#define  OR_CONTROL_HCFS                0x000000C0
+#define  OR_CONTROL_HC_OPER             0x00000080
+                                            /* ----------------- HcCommandStatus Register ----------------- */
+#define  OR_CMD_STATUS_HCR              0x00000001
+#define  OR_CMD_STATUS_CLF              0x00000002
+#define  OR_CMD_STATUS_BLF              0x00000004
+                                            /* --------------- HcInterruptStatus Register ----------------- */
+#define  OR_INTR_STATUS_WDH             0x00000002
+#define  OR_INTR_STATUS_RHSC            0x00000040
+#define  OR_INTR_STATUS_UE              0x00000010
+                                            /* --------------- HcInterruptEnable Register ----------------- */
+#define  OR_INTR_ENABLE_WDH             0x00000002
+#define  OR_INTR_ENABLE_RHSC            0x00000040
+#define  OR_INTR_ENABLE_MIE             0x80000000
+                                            /* ---------------- HcRhDescriptorA Register ------------------ */
+#define  OR_RH_STATUS_LPSC              0x00010000
+#define  OR_RH_STATUS_DRWE              0x00008000
+                                            /* -------------- HcRhPortStatus[1:NDP] Register -------------- */
+#define  OR_RH_PORT_CCS                 0x00000001
+#define  OR_RH_PORT_PRS                 0x00000010
+#define  OR_RH_PORT_CSC                 0x00010000
+#define  OR_RH_PORT_PRSC                0x00100000
+
+
+/*
+**************************************************************************************************************
+*                                               FRAME INTERVAL
+**************************************************************************************************************
+*/
+
+#define  FI                     0x2EDF           /* 12000 bits per frame (-1)                               */
+#define  DEFAULT_FMINTERVAL     ((((6 * (FI - 210)) / 7) << 16) | FI)
+
+/*
+**************************************************************************************************************
+*                                       ENDPOINT DESCRIPTOR CONTROL FIELDS
+**************************************************************************************************************
+*/
+
+#define  ED_SKIP            (uint32_t) (0x00001000)        /* Skip this ep in queue                       */
+
+/*
+**************************************************************************************************************
+*                                       TRANSFER DESCRIPTOR CONTROL FIELDS
+**************************************************************************************************************
+*/
+
+#define  TD_ROUNDING        (uint32_t) (0x00040000)        /* Buffer Rounding                             */
+#define  TD_SETUP           (uint32_t)(0)                  /* Direction of Setup Packet                   */
+#define  TD_IN              (uint32_t)(0x00100000)         /* Direction In                                */
+#define  TD_OUT             (uint32_t)(0x00080000)         /* Direction Out                               */
+#define  TD_DELAY_INT(x)    (uint32_t)((x) << 21)          /* Delay Interrupt                             */
+#define  TD_TOGGLE_0        (uint32_t)(0x02000000)         /* Toggle 0                                    */
+#define  TD_TOGGLE_1        (uint32_t)(0x03000000)         /* Toggle 1                                    */
+#define  TD_CC              (uint32_t)(0xF0000000)         /* Completion Code                             */
+
+/*
+**************************************************************************************************************
+*                                       USB STANDARD REQUEST DEFINITIONS
+**************************************************************************************************************
+*/
+
+#define  USB_DESCRIPTOR_TYPE_DEVICE                     1
+#define  USB_DESCRIPTOR_TYPE_CONFIGURATION              2
+#define  USB_DESCRIPTOR_TYPE_INTERFACE                  4
+#define  USB_DESCRIPTOR_TYPE_ENDPOINT                   5
+                                                    /*  ----------- Control RequestType Fields  ----------- */
+#define  USB_DEVICE_TO_HOST         0x80
+#define  USB_HOST_TO_DEVICE         0x00
+#define  USB_REQUEST_TYPE_CLASS     0x20
+#define  USB_RECIPIENT_DEVICE       0x00
+#define  USB_RECIPIENT_INTERFACE    0x01
+                                                    /* -------------- USB Standard Requests  -------------- */
+#define  SET_ADDRESS                 5
+#define  GET_DESCRIPTOR              6
+#define  SET_CONFIGURATION           9
+#define  SET_INTERFACE              11
+
+/*
+**************************************************************************************************************
+*                                       TYPE DEFINITIONS
+**************************************************************************************************************
+*/
+
+typedef struct hcEd {                       /* ----------- HostController EndPoint Descriptor ------------- */
+    volatile  uint32_t  Control;              /* Endpoint descriptor control                              */
+    volatile  uint32_t  TailTd;               /* Physical address of tail in Transfer descriptor list     */
+    volatile  uint32_t  HeadTd;               /* Physcial address of head in Transfer descriptor list     */
+    volatile  uint32_t  Next;                 /* Physical address of next Endpoint descriptor             */
+} HCED;
+
+typedef struct hcTd {                       /* ------------ HostController Transfer Descriptor ------------ */
+    volatile  uint32_t  Control;              /* Transfer descriptor control                              */
+    volatile  uint32_t  CurrBufPtr;           /* Physical address of current buffer pointer               */
+    volatile  uint32_t  Next;                 /* Physical pointer to next Transfer Descriptor             */
+    volatile  uint32_t  BufEnd;               /* Physical address of end of buffer                        */
+} HCTD;
+
+typedef struct hcca {                       /* ----------- Host Controller Communication Area ------------  */
+    volatile  uint32_t  IntTable[32];         /* Interrupt Table                                          */
+    volatile  uint32_t  FrameNumber;          /* Frame Number                                             */
+    volatile  uint32_t  DoneHead;             /* Done Head                                                */
+    volatile  uint8_t  Reserved[116];        /* Reserved for future use                                  */
+    volatile  uint8_t  Unknown[4];           /* Unused                                                   */
+} HCCA;
+
+
+
+#endif