📄 isp_test.lst
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A51 MACRO ASSEMBLER ISP_TEST 06/13/2005 14:38:19 PAGE 1
MACRO ASSEMBLER A51 V6.12
OBJECT MODULE PLACED IN ISP_Test.OBJ
ASSEMBLER INVOKED BY: C:\Keil\C51\BIN\A51.EXE ISP_Test.asm SET(SMALL) DEBUG EP
LOC OBJ LINE SOURCE
1 ;LPC9xx family boot program for IN-SYSTEM PROGRAMMING
2 ;
3 ;copyright Philips Semiconductors 2003, 2004
4
5 ;FILENAME: LPC2_ISP_8K_V04.TXT
6 ;CODE TYPE: ISP
7 ;VERSION: 04
8 ;RELEASE DATE: 30 Jul 04
9 ;CODE MEMORY SIZE: 8KB
10 ;CODE ADDRESS RANGE: 1E00h - 1FFFh
11 ;BOOT VECTOR: 1F00h
12 ;USES IAP VERSION: 04
13 ;USES IAP ENTRY: FF03h
14 ;Author: Bill Houghton
15 ;
16 ;Features:
17 ;
18 ;Version 4:
19 ;
20 ;- Fixes bug: CCP command was assigned the same value as the write sec 2 security byte.
21 ;
22 ;Version 3:
23 ;
24 ;- Support added for hardware code corruption (BOOTSTAT.7:5) - valid key needed for write o
perations
25 ;- Fixes bug in direct load of UART baud rate command.
26 ;- Fixes Port 0 init to only program P1 modes for TxD & RxD pins.
27 ;
28 ;Version 2:
29 ;- Modifieds WDL and WDCON to select longest WDT timeout & provides periodic feeding.
30 ;- Program user code page has option to use either IDATA or XDATA (if available on chip).
31 ;- Software code corruption protection - valid key needed for write operations
32 ;- Code traps (software reset) added to start of ISP & IAP sections
33 ;
34 ;Version 1:
35 ;- Includes standard features originally released with LPC932.
36
37
38
39
40 ;********************************************************************************
41 ;************************* SET DEVICE CODE MEMORY SIZE HERE *********************
42 ;********************************************************************************
43
44 ;This program is used to create source code for devices with different code memory
45 ;sizes. To set the size of the device, "comment-out" the two devices sizes that do
46 ;not match leaving only the appropriate device size.
47
2000 48 MEM_TOP EQU 2000H ;use for 8KB code memory devices
49 ;MEM_TOP EQU 1000H ;use for 4KB code memory devices
50 ;MEM_TOP EQU 800H ;use for 2KB code memory devices
51
52 ;code memory space for LPC2
53 ;
54 ;block 0, 1KB, 0000h - 03FFh
55 ;block 1, 1KB, 0400h - 07FFh
56 ;block 2, 1KB, 0800h - 0BFFh
57 ;block 3, 1KB, 0C00h - 0FFFh
A51 MACRO ASSEMBLER ISP_TEST 06/13/2005 14:38:19 PAGE 2
58 ;block 4, 1KB, 1000h - 13FFh
59 ;block 5, 1KB, 1400h - 17FFh
60 ;block 6, 1KB, 1800h - 1BFFh
61 ;block 7, 1KB, 1C00h - 1FFFh
62
63 ;Bootrom, 240 bytes , FF00h - FFEF
64
65
0000 66 PGMU EQU 00
0001 67 VRD EQU 01
0002 68 MWR EQU 02
0003 69 MRD EQU 03
0004 70 ERS EQU 04
0005 71 SCRC EQU 05
0006 72 GCRC EQU 06
0007 73 RUSR EQU 07
00D1 74 F1 EQU 0D1H
00C1 75 WDL EQU 0C1H
00A7 76 WDCON EQU 0A7H
00C2 77 WFEED1 EQU 0C2H
00C3 78 WFEED2 EQU 0C3H
00E4 79 FMCON EQU 0E4H
00E5 80 FMDATA EQU 0E5H
81
FF03 82 PGM_MTP EQU 0FF03H
83
84
85 ;byte variables definition
86
---- 87 DSEG AT 30H
88
0030 89 ADR0: DS 1 ;low byte of address
0031 90 ADR1: DS 1 ;high byte of address
0032 91 CHKSUM: DS 1 ;record checksum
0033 92 NBYTES: DS 1 ;number of bytes in record
0034 93 RTYPE: DS 1 ;record type
0035 94 TMP3: DS 1 ;temporary storage
95
0036 96 UCFG1: DS 1 ;User configuration register 1
0037 97 UCFG2: DS 1 ;User configuration register 2
0038 98 BOOTV: DS 1 ;Boot Vector
0039 99 STATBY: DS 1 ;Status Byte
003A 100 FCFG1: DS 1 ;Factory config 1, read only
003B 101 FCFG2: DS 1 ;Factory config 2, read only
003C 102 DERIV: DS 1 ;Derivative
003D 103 TMEB_v: DS 1 ;TMEB
003E 104 SEC0: DS 1 ;Security byte 0
003F 105 SEC1: DS 1 ;Security byte 1
0040 106 SEC2: DS 1 ;Security byte 2
0041 107 SEC3: DS 1 ;Security byte 3
0042 108 SEC4: DS 1 ;Security byte 4
0043 109 SEC5: DS 1 ;Security byte 5
0044 110 SEC6: DS 1 ;Security byte 6
0045 111 SEC7: DS 1 ;Security byte 7
0046 112 MF_ID: DS 1 ;Signature byte 0 (mfg id)
0047 113 ID_1: DS 1 ;Signature byte 1 (device id)
0048 114 ID_2: DS 1 ;Signature byte 2 (derivative id)
115
0049 116 CRC0: DS 1 ;CRC data
004A 117 CRC1: DS 1 ;CRC data
004B 118 CRC2: DS 1 ;CRC data
004C 119 CRC3: DS 1 ;CRC data
120
121 ;ISEG AT 0FFH
122
123 ;KEY: DS 1 ;IAP request key
A51 MACRO ASSEMBLER ISP_TEST 06/13/2005 14:38:19 PAGE 3
00FF 124 KEY data 0xFF
125
126 ;*************** equates list ************************
127
0036 128 CONFB EQU UCFG1 ;start of CONF register space
0091 129 RXDn EQU P1.1 ;RxD pin
0004 130 ISP_VER EQU 04H ;ISP version id = 4
008E 131 AUXR EQU 08EH ;auxr register
00A2 132 AUXR1 EQU 0A2H ;auxr 1 register
0008 133 SRST EQU 8H ;OR mask for software reset bit
008F 134 TAMOD EQU 8FH ;timer aux mode register
0091 135 P1M1 EQU 91H
0092 136 P1M2 EQU 92H
00BE 137 BRGR0 EQU 0BEH
00BF 138 BRGR1 EQU 0BFH
00BD 139 BRGCON EQU 0BDH
140
00E0 141 OI EQU ACC.0 ;operation aborted by interrupt
00E1 142 SV EQU ACC.1 ;security violation
00E2 143 HVE EQU ACC.2 ;high voltage error
144
00FF 145 SBVAL EQU 0FFH ;status byte default value
00FC 146 BVVAL EQU 0FCH ;boot vector default value
0080 147 DBYTES EQU 80H ;start of RAM buffer for hex string
0096 148 KEYVAL EQU 96H ;IAP request key value
0008 149 SET_WE EQU 08H ;enable writing
150
---- 151 CSEG AT MEM_TOP-512 ;Should be 1E00h
152
1E00 153 RESET:
1E00 43A208 154 ORL AUXR1,#SRST ;set the software reset bit
155 ;*********************************************************
156 ;
157 ; START OF PROGRAM
158 ;
159 ;*********************************************************
160
161 ; First, we need to measure the baud rate of
162 ;the host in terms of our own clock speed. This
163 ;measurement can be made on a start bit provided
164 ;the first data bit is a logical one. A capital "U"
165 ;is a good choice since it has alternating 1s and 0s .
166 ; Our measurement uses T1 which is clocked at
167 ;fosc/2, which is the same as when T1 is used as
168 ;a baud rate generator. The UART uses 16x sampling
169 ;so we need to divide the T1 count by 16. Even
170 ;though the timer will be used in the 8-bit
171 ;auto-reload mode for baud rate generation, non-reload
172 ;16-bit mode is used for the measurement to give
173 ;more clock counts for slower baud rates. This number
174 ;will be divided by 16. This method allows the timer
175 ;to count up to 4096 counts (16 x 256). The timer
176 ;counts up towards zero thus counts loaded into the
177 ;timer counter need to be negative numbers. A two's
178 ;complement of the adjusted count produces this result.
179
180
1E03 181 INIT:
1E03 D1E5 182 ACALL I_WDT ;
1E05 5391FC 183 ANL 91H,#0FCH ;RxD = quasi-bi
1E08 439201 184 ORL 92H,#01H ;TxD = push-pull
1E0B 7590FF 185 MOV P1,#0FFH ;
186
1E0E 758920 187 MOV TMOD,#20H ;8-bit auto-reload mode
1E11 53BAFA 188 ANL 0BAH,#0FAH
1E14 E4 189 CLR A
A51 MACRO ASSEMBLER ISP_TEST 06/13/2005 14:38:19 PAGE 4
1E15 F5BD 190 MOV 0BDH,A
1E17 759850 191 MOV SCON,#50H ;init UART 8-bit variable, TI=0 RI=0
1E1A 75BEF0 192 MOV 0BEH,#0F0H
1E1D 75BF02 193 MOV 0BFH,#02H
1E20 75BD03 194 MOV 0BDH,#03H
195
1E23 196 QRZ:
1E23 D188 197 ACALL ECHO ;wait until character is rcv'd & get it
1E25 B455FB 198 CJNE A,#'U',QRZ ;check to see if uppercase "U"
1E28 D174 199 W1: ACALL CO
200
1E2A 201 LCMD:
1E2A 7D00 202 MOV R5,#0 ;begin record... zero checksum
1E2C D188 203 ACALL ECHO ;get first char and echo
1E2E B43AF7 204 CJNE A,#':',W1 ;record starts with ':' char
1E31 D161 205 ACALL GET2 ;get the number of bytes in record
1E33 853533 206 MOV 33H,35H ;and save
1E36 D161 207 ACALL GET2 ;get MSB of load address
1E38 853531 208 MOV 31H,35H ;and save
1E3B D161 209 ACALL GET2 ;get LSB of load address
1E3D 853530 210 MOV 30H,35H ;and save it
1E40 D161 211 ACALL GET2 ;get record type
1E42 853534 212 MOV 34H,35H ;and save it
1E45 E533 213 MOV A,33H ;else, more than
1E47 FA 214 MOV R2,A
1E48 6009 215 JZ EOR ;zero data bytes ?
1E4A 7980 216 MOV R1,#80H ;pointer for data bytes
1E4C D161 217 LDATA: ACALL GET2 ;get data byte
1E4E A735 218 MOV @R1,35H ;store it
1E50 09 219 INC R1 ;and bump up the pointer
1E51 DAF9 220 DJNZ R2,LDATA ;repeat if more bytes in record
1E53 221 EOR:
1E53 ED 222 MOV A,R5 ;
1E54 FC 223 MOV R4,A ;save calculated checksum
1E55 D161 224 ACALL GET2 ;get the checksum byte
1E57 EC 225 MOV A,R4 ;and compare with calculated checksum byte
1E58 B53504 226 CJNE A,35H,CHKERR ;recv'd & calc'd chksums match ?
1E5B 7980 227 MOV R1,#80H ;pointer for data
1E5D C1A5 228 AJMP PROCESS ;YES, process command
229
1E5F 230 CHKERR:
231 ; MOV A,#'X'
1E5F E124 232 AJMP RSPND1
233
1E61 D188 234 GET2: ACALL ECHO ;get first char of length
1E63 D190 235 ACALL A2HEX ;convert to hex
1E65 C4 236 SWAP A ;set in high nibble
1E66 F535 237 MOV 35H,A ;store in NBYTES
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