a3load.h

a3load is 8051 firmware that can be used for uploading or downloading to EZ-USB RAM (internal or ex

typedef bit BOOL;
typedef unsigned char   BYTE;
typedef unsigned short  WORD;
typedef unsigned long   DWORD;

#define TRUE    1
#define FALSE   0

#define bmBIT0   0x01
#define bmBIT1   0x02
#define bmBIT2   0x04
#define bmBIT3   0x08
#define bmBIT4   0x10
#define bmBIT5   0x20
#define bmBIT6   0x40
#define bmBIT7   0x80

#define EZUSB_IRQ_ENABLE()   EUSB = 1
#define EZUSB_IRQ_CLEAR()   EXIF &= ~0x10      // IE2_

#define bmSUDAV         bmBIT0
#define bmEPBUSY        bmBIT1

#define EP0BUFF_SIZE    64
#define VR_UPLOAD       0xc0
#define VR_DOWNLOAD     0x40
#define VR_RAM          0xA3 // loads (uploads) external ram
#define VR_ISFX2        0xAC // returns a single byte (1 if an FX2, 0 otherwise)

sbit EUSB    = 0xE8+0;
sbit EA      = 0xA8+7;
sfr EXIF     = 0x91;

// FX2 Registers
xdata volatile BYTE INTSETUP_FX2             _at_ 0xE668;         // Interrupt 2&4 Setup
xdata volatile BYTE USBIE_FX2                _at_ 0xE65C;         // USB Int Enables
xdata volatile BYTE USBIRQ_FX2               _at_ 0xE65D;         // USB Interrupt Requests
xdata volatile BYTE SETUPDAT_FX2[8]          _at_ 0xE6B8;         // 8 bytes of SETUP data
xdata volatile BYTE EP0BCH_FX2               _at_ 0xE68A;         // Endpoint 0 Byte Count H
xdata volatile BYTE EP0BCL_FX2               _at_ 0xE68B;         // Endpoint 0 Byte Count L
xdata volatile BYTE EP0CS_FX2                _at_ 0xE6A0;         // Endpoint  Control and Status
xdata volatile BYTE EP0BUF_FX2[64]           _at_ 0xE740;         // EP0 IN-OUT buffer

#define bmHSNAK_FX2      bmBIT7
#define bmAV2EN      bmBIT3

// EZUSB Registers
xdata volatile BYTE USBIEN_EZUSB             _at_ 0x7FAE;
xdata volatile BYTE USBIRQ_EZUSB             _at_ 0x7FAB;
xdata volatile BYTE SETUPDAT_EZUSB[8]        _at_ 0x7FE8;
xdata volatile BYTE EP0CS_EZUSB              _at_ 0x7FB4;
xdata volatile BYTE IN0BC_EZUSB              _at_ 0x7FB5;
xdata volatile BYTE OUT0BC_EZUSB             _at_ 0x7FC5;
xdata volatile BYTE OUT0BUF_EZUSB[64]        _at_ 0x7EC0;
xdata volatile BYTE IN0BUF_EZUSB[64]         _at_ 0x7F00;
xdata volatile BYTE USBBAV_EZUSB             _at_ 0x7FAF;
xdata volatile BYTE PORTCCFG_EZUSB           _at_ 0x7F95;

#define bmOUTBSY_EZUSB  bmBIT3
#define bmINBSY_EZUSB   bmBIT2
#define bmHSNAK_EZUSB   bmBIT1