📄 usb_bl_app_f320_1_16k_startup.a51
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$NOMOD51
;------------------------------------------------------------------------------
; This file is part of the C51 Compiler package
; Copyright (c) 1988-2005 Keil Elektronik GmbH and Keil Software, Inc.
; Version 8.01
;
; *** <<< Use Configuration Wizard in Context Menu >>> ***
;------------------------------------------------------------------------------
; STARTUP.A51: This code is executed after processor reset.
;
; To translate this file use A51 with the following invocation:
;
; A51 STARTUP.A51
;
; To link the modified STARTUP.OBJ file to your application use the following
; Lx51 invocation:
;
; Lx51 your object file list, STARTUP.OBJ controls
;
;------------------------------------------------------------------------------
;******************************************************************************
; Filename : USB_BL_APP_F320_1_16k_STARTUP.A51
; Project : USB Bootloader (USB_BL)
; Created : 02 JUN 2004 / PKC
; Devices : C8051F320/1/6/7/'F34x
; Toolchain : Keil
;
; Compiler command line: See in custom section below.
; Linker command line: See in custom section below.
;
; Description:
; The modifications made to the default Keil STARTUP.A51 enables calls to the
; shared USBXpress library located within the Bootloader project from
; Application Firmware.
;
; Revision History:
; 19OCT2007-PKC:
; Updated bootloader and USBXpress publics and function entry points
; Added APP_FW_VER and DEVICE_CODE
; 03MAY2007-PKC:
; Updated bootloader and USBXpress publics and function entry points.
; Bootloader request uses Flash Error Reset as the call mechanism.
; Replaced BL_STATUS with DEVICE_MODE.
; 12APR2007-PKC:
; Updated START_APPLICATION from 1400h to 1200h
; Changed reserved code space from 1400h to START_APPLICATION
; 14APR2006-PKC:
; Updated bootloader and USBXpress publics and function entry points
; Note: These values were copied from the "F320_1_16k" tab of the excel sheet
; 24MAR2006-PKC:
; Updated bootloader and USBXpress publics and function entry points
; 13SEP2005-PKC:
; Updated bootloader and USBXpress publics and function entry points
; Removed 448 bytes reserved for USBXpress library
; Removed 17 bytes reserved in XRAM for USB_Init() paramter passing
; Updated USB_Init() parameter start address to reflect change in the BL
; Reserved Code Space used by USB BL and USBXpress
;******************************************************************************
;
; User-defined <h> Power-On Initialization of Memory
;
; With the following EQU statements the initialization of memory
; at processor reset can be defined:
;
; <o> IDATALEN: IDATA memory size <0x0-0x100>
; <i> Note: The absolute start-address of IDATA memory is always 0
; <i> The IDATA space overlaps physically the DATA and BIT areas.
IDATALEN EQU 80H
;
; <o> XDATASTART: XDATA memory start address <0x0-0xFFFF>
; <i> The absolute start address of XDATA memory
XDATASTART EQU 0
;
; <o> XDATALEN: XDATA memory size <0x0-0xFFFF>
; <i> The length of XDATA memory in bytes.
XDATALEN EQU 0
;
; <o> PDATASTART: PDATA memory start address <0x0-0xFFFF>
; <i> The absolute start address of PDATA memory
PDATASTART EQU 0H
;
; <o> PDATALEN: PDATA memory size <0x0-0xFF>
; <i> The length of PDATA memory in bytes.
PDATALEN EQU 0H
;
;</h>
;------------------------------------------------------------------------------
;
;<h> Reentrant Stack Initialization
;
; The following EQU statements define the stack pointer for reentrant
; functions and initialized it:
;
; <h> Stack Space for reentrant functions in the SMALL model.
; <q> IBPSTACK: Enable SMALL model reentrant stack
; <i> Stack space for reentrant functions in the SMALL model.
IBPSTACK EQU 0 ; set to 1 if small reentrant is used.
; <o> IBPSTACKTOP: End address of SMALL model stack <0x0-0xFF>
; <i> Set the top of the stack to the highest location.
IBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
; </h>
;
; <h> Stack Space for reentrant functions in the LARGE model.
; <q> XBPSTACK: Enable LARGE model reentrant stack
; <i> Stack space for reentrant functions in the LARGE model.
XBPSTACK EQU 0 ; set to 1 if large reentrant is used.
; <o> XBPSTACKTOP: End address of LARGE model stack <0x0-0xFFFF>
; <i> Set the top of the stack to the highest location.
XBPSTACKTOP EQU 0xFFFF +1 ; default 0FFFFH+1
; </h>
;
; <h> Stack Space for reentrant functions in the COMPACT model.
; <q> PBPSTACK: Enable COMPACT model reentrant stack
; <i> Stack space for reentrant functions in the COMPACT model.
PBPSTACK EQU 0 ; set to 1 if compact reentrant is used.
;
; <o> PBPSTACKTOP: End address of COMPACT model stack <0x0-0xFFFF>
; <i> Set the top of the stack to the highest location.
PBPSTACKTOP EQU 0xFF +1 ; default 0FFH+1
; </h>
;</h>
;------------------------------------------------------------------------------
;
; Memory Page for Using the Compact Model with 64 KByte xdata RAM
; <e>Compact Model Page Definition
;
; <i>Define the XDATA page used for PDATA variables.
; <i>PPAGE must conform with the PPAGE set in the linker invocation.
;
; Enable pdata memory page initalization
PPAGEENABLE EQU 0 ; set to 1 if pdata object are used.
;
; <o> PPAGE number <0x0-0xFF>
; <i> uppermost 256-byte address of the page used for PDATA variables.
PPAGE EQU 0
;
; <o> SFR address which supplies uppermost address byte <0x0-0xFF>
; <i> most 8051 variants use P2 as uppermost address byte
PPAGE_SFR DATA 0A0H
;
; </e>
;------------------------------------------------------------------------------
; Standard SFR Symbols
ACC DATA 0E0H
B DATA 0F0H
SP DATA 81H
DPL DATA 82H
DPH DATA 83H
;******************************************************************************
; Begin custom code for the Application FW project ->
;******************************************************************************
; *** USB_BL_APP_F320_1_16k_STARTUP.A51 ***
; Compiler command line: DB OE INTVECTOR(0x1200) INTERVAL(3)
; Linker command line: RS(256) PL(68) PW(78) CODE(0x1200-0x3BFD)
;------------------------------------------------------------------------------
; Device Code (Denotes device type)
; 1 byte value
; Stored at the last 5th byte of the last application page
CSEG AT 03BFBh
DEVICE_CODE: DB 081h ; "C8051F320/1 with 16k Flash"
;==============================================================================
; Application Firmware Version *** INCREMENT FOR NEXT APP FW VERSION ***
; 2 byte value in high-byte, low-byte order
; Stored at the last 3rd and 4th bytes of the last application page
CSEG AT 03BFCh
APP_FW_VER: DB 001h,000h ; ver 1.0
;==============================================================================
; Entry point of the User Application Firmware
; Change should be mirrored in this project's Compiler & Linker command lines
; Should also be mirrored in BL FW's STARTUP.A51 and USB_BL_Defs.h
; And also in BL SW's FirmwareInterface.h
START_APPLICATION EQU 01200h
; Location of USB_Init function parameters (passed by compiler)
PUBLIC ?_USB_INIT?BYTE
?_USB_INIT?BYTE EQU 07AFh
;------------------------------------------------------------------------------
; The following define the entry points of the Bootloader functions
; and is used by the app to call the bootloader
PUBLIC BOOTLOAD_REQ
PUBLIC _BLOCK_WRITE
PUBLIC _BLOCK_READ
PUBLIC USB_SUSPEND
PUBLIC USB_DISABLE
PUBLIC USB_INT_ENABLE
PUBLIC GET_INTERRUPT_SOURCE
PUBLIC USB_INT_DISABLE
PUBLIC USB_BL_USB_DESCRIPTOR
PUBLIC _USB_INIT
PUBLIC USB_CLOCK_START
PUBLIC USB_GET_LIBRARY_VERSION
BOOTLOAD_REQ EQU 0FFFFh
_BLOCK_WRITE EQU 0412h
_BLOCK_READ EQU 05F0h
USB_SUSPEND EQU 07C4h
USB_DISABLE EQU 09C7h
USB_INT_ENABLE EQU 0A4Bh
GET_INTERRUPT_SOURCE EQU 0A78h
USB_INT_DISABLE EQU 0A86h
USB_BL_USB_DESCRIPTOR EQU 0A8Eh
_USB_INIT EQU 03C00h
USB_CLOCK_START EQU 03D37h
USB_GET_LIBRARY_VERSION EQU 03D7Bh
PUBLIC VID
PUBLIC PID
PUBLIC MFRSTR
PUBLIC PRDSTR
PUBLIC MAXPOWER
PUBLIC PWATTRIBUTES
PUBLIC BCDDEVICE
PUBLIC SERIAL
PUBLIC SERIAL_BL
VID EQU 0A8Eh
PID EQU 0A90h
MFRSTR EQU 0A92h
PRDSTR EQU 0AC4h
MAXPOWER EQU 0AF6h
PWATTRIBUTES EQU 0AF7h
BCDDEVICE EQU 0AF8h
SERIAL EQU 0AFAh
SERIAL_BL EQU 0B06h
;------------------------------------------------------------------------------
;This is only to reserve the bit space so that App FW keeps away from this location
;The App FW does not have to monitor or change this bit variable
;Bit variable holding current device status (0=>App FW Mode; 1=>BL Mode)
;[Only RAM variable shared between BL project and App FW project]
;DEVICE_MODE DEFINES (Changes should be mirrored in USB_BL_Defs.h
; and App FW's STARTUP.A51 as well)
;APPLICATION_MODE EQU 0 ;Application Mode (Signature verification passed)
;BOOTLOADER_MODE EQU 1 ;Bootloader Mode (Signature verification failed)
;DEVICE_MODE LOCATION
MEM_DEVICE_MODE BIT 07Fh ;Last bit in bit-addressable space (2F.7h)
;DEVICE_MODE SPACE ALLOCATION
BSEG AT MEM_DEVICE_MODE
DEVICE_MODE: DBIT 1
;******************************************************************************
;End of custom code for the Application FW Project <-
;Original Keil STARTUP.A51 code continues below with one modification ->
;(Changed "CSEG AT 0" to "CSEG AT START_APPLICATION") ->
;******************************************************************************
NAME ?C_STARTUP
?C_C51STARTUP SEGMENT CODE
?STACK SEGMENT IDATA
RSEG ?STACK
DS 1
EXTRN CODE (?C_START)
PUBLIC ?C_STARTUP
CSEG AT START_APPLICATION ; *** MODIFIED RESET VECTOR ***
?C_STARTUP: LJMP STARTUP1
RSEG ?C_C51STARTUP
STARTUP1:
IF IDATALEN <> 0
MOV R0,#IDATALEN - 1
CLR A
IDATALOOP: MOV @R0,A
DJNZ R0,IDATALOOP
ENDIF
IF XDATALEN <> 0
MOV DPTR,#XDATASTART
MOV R7,#LOW (XDATALEN)
IF (LOW (XDATALEN)) <> 0
MOV R6,#(HIGH (XDATALEN)) +1
ELSE
MOV R6,#HIGH (XDATALEN)
ENDIF
CLR A
XDATALOOP: MOVX @DPTR,A
INC DPTR
DJNZ R7,XDATALOOP
DJNZ R6,XDATALOOP
ENDIF
IF PPAGEENABLE <> 0
MOV PPAGE_SFR,#PPAGE
ENDIF
IF PDATALEN <> 0
MOV R0,#LOW (PDATASTART)
MOV R7,#LOW (PDATALEN)
CLR A
PDATALOOP: MOVX @R0,A
INC R0
DJNZ R7,PDATALOOP
ENDIF
IF IBPSTACK <> 0
EXTRN DATA (?C_IBP)
MOV ?C_IBP,#LOW IBPSTACKTOP
ENDIF
IF XBPSTACK <> 0
EXTRN DATA (?C_XBP)
MOV ?C_XBP,#HIGH XBPSTACKTOP
MOV ?C_XBP+1,#LOW XBPSTACKTOP
ENDIF
IF PBPSTACK <> 0
EXTRN DATA (?C_PBP)
MOV ?C_PBP,#LOW PBPSTACKTOP
ENDIF
MOV SP,#?STACK-1
; This code is required if you use L51_BANK.A51 with Banking Mode 4
;<h> Code Banking
; <q> Select Bank 0 for L51_BANK.A51 Mode 4
#if 0
; <i> Initialize bank mechanism to code bank 0 when using L51_BANK.A51 with Banking Mode 4.
EXTRN CODE (?B_SWITCH0)
CALL ?B_SWITCH0 ; init bank mechanism to code bank 0
#endif
;</h>
LJMP ?C_START
END
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