Differences

This shows you the differences between two versions of the page.

--- projects:repair:dell_pa10 [2013/05/11 04:02] – [Source] admin
+++ projects:repair:dell_pa10 [2013/10/29 02:05] (current) – [Relevant articles] admin
@@ Line 51: / Line 51: @@
 ^ gpdasm with 10f220 ^ picdisasm with 12C672\\ with opcodes ^ picdisasm with 12C672 ^
-| %%000000:  0000  nop%%\\ %%000001:  0fff%%\\ %%000002:  0fff%%\\ %%000003:  0fff%%\\ %%000004:  2805  retlw   0x5%%\\ %%000005:  281f  retlw   0x1f%%\\ %%000006:  00a3  subwf   0x3, f%%\\ %%000007:  00a4  subwf   0x4, f%%\\ %%000008:  3008  dw   0x3008%%\\ %%000009:  00a2  subwf   0x2, f%%\\ %%00000a:  0825  retlw   0x25%%\\ %%00000b:  06a3  btfsc   0x3, 0x5%%\\ %%00000c:  0ca3  movlw   0xa3%%\\ %%00000d:  0825  retlw   0x25%%\\ %%00000e:  00a3  subwf   0x3, f%%\\ %%00000f:  1c03  movlw   0x3%%\\ %%000010:  2813  retlw   0x13%%\\ %%000011:  3018  dw   0x3018%%\\ %%000012:  06a3  btfsc   0x3, 0x5%%\\ %%000013:  0ca3  movlw   0xa3%%\\ %%000014:  0823  retlw   0x23%%\\ %%000015:  00a5  subwf   0x5, f%%\\ %%000016:  0824  retlw   0x24%%\\ %%000017:  00a3  subwf   0x3, f%%\\ %%000018:  1003  sleep%%\\ %%000019:  0ca3  movlw   0xa3%%\\ %%00001a:  0823  retlw   0x23%%\\ %%00001b:  00a4  subwf   0x4, f%%\\ %%00001c:  0ba2  goto   0x1a2%%\\ %%00001d:  280a  retlw   0xa%%\\ %%00001e:  0008  dw   0x8%%\\ %%00001f:  01a5  xorwf   0x5, f%%\\ %%000020:  30f0  decf   0x10, f%%\\ %%000021:  2006  tris   0x6%%\\ %%000022:  3010  dw   0x3010%%\\ %%000023:  2006  tris   0x6%%\\ %%000024:  0000  nop%%\\ %%000025:  3000  nop%%\\ %%000026:  2006  tris   0x6%%\\ %%000027:  0000  nop%%\\ %%002000:  0001  tris   0x1%%\\ %%002001:  0002  option%%\\ %%002002:  0003  sleep%%\\ %%002003:  0004  clrwdt%%\\ %%002007:  3ff9  xorlw   0xf9%%\\ \\ \\ \\ \\ \\ \\ \\   | %%ConfigurationBits: 0x3FF9%%\\ %%IDLocation: 01020304%%\\ %%ProgramMemory%%\\ %% Adr Data Command%%\\ %%--------------------%%\\ %%0000 0000 | NOP%%\\ %%0004 2805 | GOTO LADR_0x0005%%\\ %%0005 281F | GOTO LADR_0x001F%%\\ %%0006 00A3 | MOVWF LRAM_0x23%%\\ %%0007 00A4 | MOVWF LRAM_0x24%%\\ %%0008 3008 | MOVLW 0x08 ; b'00001000' d'008'%%\\ %%0009 00A2 | MOVWF LRAM_0x22%%\\ %%000A 0825 | MOVF LRAM_0x25, W%%\\ %%000B 06A3 | XORWF LRAM_0x23, F%%\\ %%000C 0CA3 | RRF LRAM_0x23, F%%\\ %%000D 0825 | MOVF LRAM_0x25, W%%\\ %%000E 00A3 | MOVWF LRAM_0x23%%\\ %%000F 1C03 | BTFSS STATUS, C%%\\ %%0010 2813 | GOTO LADR_0x0013%%\\ %%0011 3018 | MOVLW 0x18 ; b'00011000' d'024'%%\\ %%0012 06A3 | XORWF LRAM_0x23, F%%\\ %%0013 0CA3 | RRF LRAM_0x23, F%%\\ %%0014 0823 | MOVF LRAM_0x23, W%%\\ %%0015 00A5 | MOVWF LRAM_0x25%%\\ %%0016 0824 | MOVF LRAM_0x24, W%%\\ %%0017 00A3 | MOVWF LRAM_0x23%%\\ %%0018 1003 | BCF STATUS, C%%\\ %%0019 0CA3 | RRF LRAM_0x23, F%%\\ %%001A 0823 | MOVF LRAM_0x23, W%%\\ %%001B 00A4 | MOVWF LRAM_0x24%%\\ %%001C 0BA2 | DECFSZ LRAM_0x22, F%%\\ %%001D 280A | GOTO LADR_0x000A%%\\ %%001E 0008 | RETURN%%\\ %%001F 01A5 | CLRF LRAM_0x25%%\\ %%0020 30F0 | MOVLW 0xF0 ; b'11110000' d'240'%%\\ %%0021 2006 | CALL LADR_0x0006%%\\ %%0022 3010 | MOVLW 0x10 ; b'00010000' d'016'%%\\ %%0023 2006 | CALL LADR_0x0006%%\\ %%0024 0000 | NOP%%\\ %%0025 3000 | MOVLW 0x00 ; b'00000000' d'000'%%\\ %%0026 2006 | CALL LADR_0x0006%%\\ %%0027 0000 | NOP%%  | %%; original File = dell.hex%%\\ %%%%\\ %% processor 12C672%%\\ %% #include <P12C672.INC>%%\\ %% __config _MCLRE_ON & _CP_OFF & _PWRTE_OFF & _WDT_ON & _XT_OSC ; 0x3FF9%%\\ %% __idlocs 0x1234%%\\ %%%%\\ %%; RAM-Variable%%\\ %%LRAM_0x22 equ 0x22%%\\ %%LRAM_0x23 equ 0x23%%\\ %%LRAM_0x24 equ 0x24%%\\ %%LRAM_0x25 equ 0x25%%\\ %%%%\\ %%; Program%%\\ %%%%\\ %% Org 0x0000%%\\ %%%%\\ %%; Reset-Vector%%\\ %% NOP%%\\ %%%%\\ %% Org 0x0004%%\\ %%%%\\ %%; Interrupt-Vector%%\\ %% GOTO LADR_0x0005%%\\ %%LADR_0x0005%%\\ %% GOTO LADR_0x001F%%\\ %%LADR_0x0006%%\\ %% MOVWF LRAM_0x23%%\\ %% MOVWF LRAM_0x24%%\\ %% MOVLW 0x08 ; b'00001000' d'008'%%\\ %% MOVWF LRAM_0x22%%\\ %%LADR_0x000A%%\\ %% MOVF LRAM_0x25, W%%\\ %% XORWF LRAM_0x23, F%%\\ %% RRF LRAM_0x23, F%%\\ %% MOVF LRAM_0x25, W%%\\ %% MOVWF LRAM_0x23%%\\ %% BTFSS STATUS, C%%\\ %% GOTO LADR_0x0013%%\\ %% MOVLW 0x18 ; b'00011000' d'024'%%\\ %% XORWF LRAM_0x23, F%%\\ %%LADR_0x0013%%\\ %% RRF LRAM_0x23, F%%\\ %% MOVF LRAM_0x23, W%%\\ %% MOVWF LRAM_0x25%%\\ %% MOVF LRAM_0x24, W%%\\ %% MOVWF LRAM_0x23%%\\ %% BCF STATUS, C%%\\ %% RRF LRAM_0x23, F%%\\ %% MOVF LRAM_0x23, W%%\\ %% MOVWF LRAM_0x24%%\\ %% DECFSZ LRAM_0x22, F%%\\ %% GOTO LADR_0x000A%%\\ %% RETURN%%\\ %%LADR_0x001F%%\\ %% CLRF LRAM_0x25%%\\ %% MOVLW 0xF0 ; b'11110000' d'240'%%\\ %% CALL LADR_0x0006%%\\ %% MOVLW 0x10 ; b'00010000' d'016'%%\\ %% CALL LADR_0x0006%%\\ %% NOP%%\\ %% MOVLW 0x00 ; b'00000000' d'000'%%\\ %% CALL LADR_0x0006%%\\ %% NOP%%\\ %%%%\\ %% End%%  |
+| \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ %%000000:  0000  nop%%\\ %%000001:  0fff%%\\ %%000002:  0fff%%\\ %%000003:  0fff%%\\ %%000004:  2805  retlw   0x5%%\\ %%000005:  281f  retlw   0x1f%%\\ %%000006:  00a3  subwf   0x3, f%%\\ %%000007:  00a4  subwf   0x4, f%%\\ %%000008:  3008  dw   0x3008%%\\ %%000009:  00a2  subwf   0x2, f%%\\ %%00000a:  0825  retlw   0x25%%\\ %%00000b:  06a3  btfsc   0x3, 0x5%%\\ %%00000c:  0ca3  movlw   0xa3%%\\ %%00000d:  0825  retlw   0x25%%\\ %%00000e:  00a3  subwf   0x3, f%%\\ %%00000f:  1c03  movlw   0x3%%\\ %%000010:  2813  retlw   0x13%%\\ %%000011:  3018  dw   0x3018%%\\ %%000012:  06a3  btfsc   0x3, 0x5%%\\ %%000013:  0ca3  movlw   0xa3%%\\ %%000014:  0823  retlw   0x23%%\\ %%000015:  00a5  subwf   0x5, f%%\\ %%000016:  0824  retlw   0x24%%\\ %%000017:  00a3  subwf   0x3, f%%\\ %%000018:  1003  sleep%%\\ %%000019:  0ca3  movlw   0xa3%%\\ %%00001a:  0823  retlw   0x23%%\\ %%00001b:  00a4  subwf   0x4, f%%\\ %%00001c:  0ba2  goto   0x1a2%%\\ %%00001d:  280a  retlw   0xa%%\\ %%00001e:  0008  dw   0x8%%\\ %%00001f:  01a5  xorwf   0x5, f%%\\ %%000020:  30f0  decf   0x10, f%%\\ %%000021:  2006  tris   0x6%%\\ %%000022:  3010  dw   0x3010%%\\ %%000023:  2006  tris   0x6%%\\ %%000024:  0000  nop%%\\ %%000025:  3000  nop%%\\ %%000026:  2006  tris   0x6%%\\ %%000027:  0000  nop%%\\ %%002000:  0001  tris   0x1%%\\ %%002001:  0002  option%%\\ %%002002:  0003  sleep%%\\ %%002003:  0004  clrwdt%%\\ %%002007:  3ff9  xorlw   0xf9%%\\ \\ \\ \\ \\ \\ \\ \\   | %%ConfigurationBits: 0x3FF9%%\\ %%IDLocation: 01020304%%\\ %%ProgramMemory%%\\ %% Adr Data Command%%\\ %%--------------------%%\\ %%0000 0000 | NOP%%\\ %%0004 2805 | GOTO LADR_0x0005%%\\ %%0005 281F | GOTO LADR_0x001F%%\\ %%0006 00A3 | MOVWF LRAM_0x23%%\\ %%0007 00A4 | MOVWF LRAM_0x24%%\\ %%0008 3008 | MOVLW 0x08 ; b'00001000' d'008'%%\\ %%0009 00A2 | MOVWF LRAM_0x22%%\\ %%000A 0825 | MOVF LRAM_0x25, W%%\\ %%000B 06A3 | XORWF LRAM_0x23, F%%\\ %%000C 0CA3 | RRF LRAM_0x23, F%%\\ %%000D 0825 | MOVF LRAM_0x25, W%%\\ %%000E 00A3 | MOVWF LRAM_0x23%%\\ %%000F 1C03 | BTFSS STATUS, C%%\\ %%0010 2813 | GOTO LADR_0x0013%%\\ %%0011 3018 | MOVLW 0x18 ; b'00011000' d'024'%%\\ %%0012 06A3 | XORWF LRAM_0x23, F%%\\ %%0013 0CA3 | RRF LRAM_0x23, F%%\\ %%0014 0823 | MOVF LRAM_0x23, W%%\\ %%0015 00A5 | MOVWF LRAM_0x25%%\\ %%0016 0824 | MOVF LRAM_0x24, W%%\\ %%0017 00A3 | MOVWF LRAM_0x23%%\\ %%0018 1003 | BCF STATUS, C%%\\ %%0019 0CA3 | RRF LRAM_0x23, F%%\\ %%001A 0823 | MOVF LRAM_0x23, W%%\\ %%001B 00A4 | MOVWF LRAM_0x24%%\\ %%001C 0BA2 | DECFSZ LRAM_0x22, F%%\\ %%001D 280A | GOTO LADR_0x000A%%\\ %%001E 0008 | RETURN%%\\ %%001F 01A5 | CLRF LRAM_0x25%%\\ %%0020 30F0 | MOVLW 0xF0 ; b'11110000' d'240'%%\\ %%0021 2006 | CALL LADR_0x0006%%\\ %%0022 3010 | MOVLW 0x10 ; b'00010000' d'016'%%\\ %%0023 2006 | CALL LADR_0x0006%%\\ %%0024 0000 | NOP%%\\ %%0025 3000 | MOVLW 0x00 ; b'00000000' d'000'%%\\ %%0026 2006 | CALL LADR_0x0006%%\\ %%0027 0000 | NOP%%  | %%; original File = dell.hex%%\\ %%%%\\ %% processor 12C672%%\\ %% #include <P12C672.INC>%%\\ %% __config _MCLRE_ON & _CP_OFF & _PWRTE_OFF & _WDT_ON & _XT_OSC ; 0x3FF9%%\\ %% __idlocs 0x1234%%\\ %%%%\\ %%; RAM-Variable%%\\ %%LRAM_0x22 equ 0x22%%\\ %%LRAM_0x23 equ 0x23%%\\ %%LRAM_0x24 equ 0x24%%\\ %%LRAM_0x25 equ 0x25%%\\ %%%%\\ %%; Program%%\\ %%%%\\ %% Org 0x0000%%\\ %%%%\\ %%; Reset-Vector%%\\ %% NOP%%\\ %%%%\\ %% Org 0x0004%%\\ %%%%\\ %%; Interrupt-Vector%%\\ %% GOTO LADR_0x0005%%\\ %%LADR_0x0005%%\\ %% GOTO LADR_0x001F%%\\ %%LADR_0x0006%%\\ %% MOVWF LRAM_0x23%%\\ %% MOVWF LRAM_0x24%%\\ %% MOVLW 0x08 ; b'00001000' d'008'%%\\ %% MOVWF LRAM_0x22%%\\ %%LADR_0x000A%%\\ %% MOVF LRAM_0x25, W%%\\ %% XORWF LRAM_0x23, F%%\\ %% RRF LRAM_0x23, F%%\\ %% MOVF LRAM_0x25, W%%\\ %% MOVWF LRAM_0x23%%\\ %% BTFSS STATUS, C%%\\ %% GOTO LADR_0x0013%%\\ %% MOVLW 0x18 ; b'00011000' d'024'%%\\ %% XORWF LRAM_0x23, F%%\\ %%LADR_0x0013%%\\ %% RRF LRAM_0x23, F%%\\ %% MOVF LRAM_0x23, W%%\\ %% MOVWF LRAM_0x25%%\\ %% MOVF LRAM_0x24, W%%\\ %% MOVWF LRAM_0x23%%\\ %% BCF STATUS, C%%\\ %% RRF LRAM_0x23, F%%\\ %% MOVF LRAM_0x23, W%%\\ %% MOVWF LRAM_0x24%%\\ %% DECFSZ LRAM_0x22, F%%\\ %% GOTO LADR_0x000A%%\\ %% RETURN%%\\ %%LADR_0x001F%%\\ %% CLRF LRAM_0x25%%\\ %% MOVLW 0xF0 ; b'11110000' d'240'%%\\ %% CALL LADR_0x0006%%\\ %% MOVLW 0x10 ; b'00010000' d'016'%%\\ %% CALL LADR_0x0006%%\\ %% NOP%%\\ %% MOVLW 0x00 ; b'00000000' d'000'%%\\ %% CALL LADR_0x0006%%\\ %% NOP%%\\ %%%%\\ %% End%%  |
 ==== picdisasm ====
 As this disassembly code in the first column does not make much sense, I assumed another microcontroller had been used but had been mistaken with the 10f220. With this very practical [[http://www.hagi-online.org/picmicro/picdisasm_en.html|alternative freeware disassembler]], which gives a slightly better output than gpdasm, while changing the PIC-Type, it will immediately show the updated disassembly. This makes it much easier to find the target for which the code was written. So far following controllers show up with useful code:
@@ Line 66: / Line 66: @@
   * 16F: 16F54, 16F57, 16F59, 16F87, 16F88, 16F505, 16F506, 16F526, 16F610, 16F631, 16F688, 16F722, 16F723, 16F724, 16F726, 16F727, 16F737, 16F747, 16F767, 16F777, 16F882, 16F883, 16F884, 16F886, 16F887
   * Other: 12HV609, 12HV615, 16HV540, 16HV610
+==== attinty13 solution ====
+Test the communications with the controller with:
+  avrdude -P usb -c dragon_isp -p attiny13 -v
+With the attiny13 solution, program the microcontroller with:
+  avrdude -P usb -c dragon_isp -p attiny13 -Uflash:w:/Users/iudex/Downloads/tiny13-90w/Dell_1wire.hex:i
+  avrdude -P usb -c dragon_isp -p attiny13 -Ueeprom:w:/Users/iudex/Downloads/tiny13-90w/Dell_1wire.eep:i
+The terminal mode can be entered with:
+  avrdude -P usb -c dragon_isp -p attiny13 -t
+==== fuse settings ====
+  * see at this page for info about setting the fuses: [[http://www.engbedded.com/fusecalc]]
+==== Debugging with Bus Pirate ====
+Connect Bus Pirate with 1-wire device as follows:
+  * (Bus Pirate) MOSI -> (ATtiny13A) 1-wire data pin (to 47 ohm resistor)
+  * (Bus Pirate) GND -> (ATtiny13A) GND
+Because the ATtiny13A is not a genuine 1-wire ic, connect additionally:
+  * (Bus Pirate) +5v -> (ATtiny13A) +5v
+With Bus Pirate v4 an external pull-up resistor is not required. The board con be configured by software to have one. Use a terminal, configure speed to 9600 N81, 'new line' shall be only CR. Connect the Bus Pirate and enter the following commands:
+<code>
+HiZ>m
+. HiZ
+. 1-WIRE
+. UART
+. I2C
+. SPI
+. 2WIRE
+. 3WIRE
+. KEYB
+. LCD
+. PIC
+. DIO
+x. exit(without change)
+(1)>2
+Ready
+-WIRE>v
+Pinstates:
+#12    .#11    .#10    .#09   .#08   .#07   .#06   .#05   .#04   .#03   .#02   .#01
+GND.5.0V.3.3V.VPU.ADC.AUX2.AUX1.AUX.-.-.-.OWD
+P.P.P.I.I.I.I.I.I.I.I.I.
+GND.0.00V.0.00V.0.00V.0.00V.L.L.L.L.L.L.L.
+-WIRE>W
+POWER SUPPLIES ON
+-WIRE>P
+Pull-up resistors ON
+Warning: no voltage on Vpullup pin
+-WIRE>e
+Select Vpu (Pullup) Source:
+) External (or None)
+) Onboard 3.3v
+) Onboard 5.0v
+(1)>3
+V on-board pullup voltage enabled
+-WIRE>v
+Pinstates:
+#12    .#11    .#10    .#09   .#08   .#07   .#06   .#05   .#04   .#03   .#02   .#01
+GND.5.0V.3.3V.VPU.ADC.AUX2.AUX1.AUX.-.-.-.OWD
+P.P.P.I.I.I.I.I.I.I.I.I.
+GND.4.96V.3.34V.4.86V.0.00V.L.L.L.H.H.H.H.
+-WIRE>(0)
+.Macro menu
+Macro     1WIRE address
+No device, try (ALARM) SEARCH macro first
+WIRE ROM COMMAND MACROs:
+.READ ROM (0x33) *for single device bus
+.MATCH ROM (0x55) *followed by 64bit address
+.SKIP ROM (0xCC) *followed by command
+.ALARM SEARCH (0xEC)
+.SEARCH ROM (0xF0)
+-WIRE>(240)
+SEARCH (0xF0)
+Macro     1WIRE address
+Device IDs are available by MACRO, see (0).
+...
+...
+...
+</code>
+If you are ready, either type:
+<code>
+-WIRE>e
+Select Vpu (Pullup) Source:
+) External (or None)
+) Onboard 3.3v
+) Onboard 5.0v
+-WIRE>p
+Pull-up resistors OFF
+(1)>1
+ on-board pullup voltage disabled
+-WIRE>w
+POWER SUPPLIES OFF
+</code>
+or type 'm', which will turn off all outputs, power supplies and pull-up resistors. It's ready to accept a new mode. Press 1 to return to HiZ mode:
+<code>
+-WIRE>m
+. HiZ
+. 1-WIRE
+. UART
+. I2C
+. SPI
+. 2WIRE
+. 3WIRE
+. KEYB
+. LCD
+. PIC
+. DIO
+x. exit(without change)
+(1)>1
+Ready
+HiZ>
+</code>
+Programming a DS2502 with bus pirate:
+<code>
+-WIRE>(51)
+BUS RESET  OK
+READ ROM (0x33): 0x89 0xA0 0x56 0x2E 0x12 0x70 0x5E 0x1C
+Unknown device
+-WIRE>r
+READ: 0xFF
+-WIRE>r:255
+READ: 0xFF 0xFF ... 0xFF
+</code>
+bytes will be read
+</code>
+==== Alternative implementations ====
+Searching with google for 1 wire emulator revealed following pages:
+  * [[https://xn--wp-gka.de/index.php?Dell-1wire]] Implementation in a ATtiny13 microcontroller for a 90W Dell power adapter
+  * [[http://www.mikrocontroller.net/attachment/128803/DELL_1wire_Emulator_Tiny85V.bas]] Implementation of a Dell 90w adapter replacement DS2501 with a ATTiny 85 V
+  * [[http://radiokot.ru/forum/viewtopic.php?f=2&t=33322]] Implementation of a DS2432 in a PIC12F629 (Scroll down to the posting at the 28th of August 2010)
+  * [[http://avr.ru/ready/inter/1wire/1wire]] Emulation of the 1 wire protocol in a AtMega 16
+  * [[http://www.cczwei-forum.de/cc2/thread.php?postid=2359]] ATM18:: 1-Wire Emulator project for a DS1820 Temperature sensor
+Some information and a small video on defective parts on eevblog can be found [[http://www.eevblog.com/forum/projects/laptop-ac-adapter-tester-wip-design-tips-needed/|here]].
+==== Relevant articles ====
+  * [[http://www.laptop-junction.com/toast/content/inside-dell-ac-power-adapter-mystery-revealed]]
+  * [[http://www.howtofixcomputers.com/forums/dell/dell-pa-10-ac-adapter-center-pin-108608.html]]
+  * [[http://www.chzsoft.de/storage/2501unw.pdf]] datasheet Dallas Semiconductor DS2501 with 512 bits
+  * [[http://ww1.microchip.com/downloads/en/DeviceDoc/41270E.pdf]] Datasheet PIC10F220 from Microchip
+  * [[http://dangerousprototypes.com/docs/3EEPROM_explorer_board]] 1-wire tutorial with eeprom DS2431
+  * [[http://dangerousprototypes.com/docs/Bus_Pirate_menu_options_guide]] Bus Pirate menu options guide
+  * [[http://dangerousprototypes.com/docs/1-Wire]]
+  * [[http://www.youtube.com/watch?v=VVyCg_JFt1E]] Youtube clip about downloading source code, building uploading and using 1-wire as an example.
+  * [[http://hackaday.com/2008/12/24/parts-1k-1-wire-eeprom-ds2431/]] programming session with 1-wire and bus pirate

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