gmEmu
http://www.donat.org/archos/wiki/doku.php?id=
2010-09-09T05:07:42+01:00text/html2005-02-20T06:52:06+01:00jyp@81.240.120.197io_ports
http://www.donat.org/archos/wiki/doku.php?id=io_ports
IO Ports Port 0 Data Register LCD data Port 1 Data Register [43210] ..... |||||_/ 0 \_ main power / off |||| \ 1 / \ on ||||__/ 0 ||| \ 1 |||___/ 0 \____ set to 1 for a certain amount of time to reset ide. || \ 1 / ||____/ 0 \_ ide power...text/html2005-02-10T09:21:04+01:00jyp@81.240.181.202loader_analysis
http://www.donat.org/archos/wiki/doku.php?id=loader_analysis
The Loader The loader is the code below 0x6000. Contents the essential code to upgrade the firmware. a backdoor some essentials for the gmini to work (IRQ handler address, etc.) Dissection address (range) content 0x0000 reset/star...text/html2005-02-04T18:02:01+01:00jyp@81.241.99.200chips
http://www.donat.org/archos/wiki/doku.php?id=chips
Both GMINI Telechips TCC730Y K5678 A0342 AIC23B (Texas Instrument) AIC23BG 38JOT http://focus.ti.com/docs/prod/folders/print/tlv320aic23b.html 8416-CZ NABXLF0331 http://www.cirrus.com/en/products/pro/detail/P1005.html http://www.cirrus.com/e...text/html2005-02-04T09:26:38+01:00jyp@81.241.99.200gmemu_wiki_page
http://www.donat.org/archos/wiki/doku.php?id=gmemu_wiki_page
Welcome to the gmEmu Wiki Disclaimer. Misuse of the information contained herein can render your Gmini unusable. Also, bear in mind that this is work in progress: some information can be inaccurate or plainly incorrect. We assume no responsibility w...text/html2005-02-04T09:24:26+01:00jyp@81.241.99.200project_plan
http://www.donat.org/archos/wiki/doku.php?id=project_plan
The long-term goal is to port rockbox on the gmini. Critical path: (for the other tasks see the to do list) LCD driver for rockbox. Compile & load a minimal rockbox (LCD only). The rest of the drivers will be incrementally added. Keypad drive...text/html2005-02-03T07:53:09+01:00jyp@82.234.244.69joining_the_project
http://www.donat.org/archos/wiki/doku.php?id=joining_the_project
This page have moved here: http://www.rockbox.org/twiki/bin/view/Main/GminiPortDevelopment EXPORT CVSROOT=:pserver:anonymous@www.donat.org:4038/home/donat/cvsd cvs login (Password blank) cvs co gmemu Compile aclocal autoconf automake -a autohea...text/html2005-01-24T17:25:28+01:00jyp@82.234.244.69hook_setup
http://www.donat.org/archos/wiki/doku.php?id=hook_setup
Hooking your way inside Gmini This addresses the problem of modifying Archos firmware to make it run your own code. The proposed method is to bind the playing of wave files to jump at an address of your choice. It'll be there that you'll flash your...text/html2005-01-09T14:34:17+01:00jyp@81.240.12.95to_do_list
http://www.donat.org/archos/wiki/doku.php?id=to_do_list
TODO, high priority first Document Hardware layout (follow them traces...) DSP, sound Gain physical access to the Gmini backdoor 'hello world' on Gmini 220 & 220XS (120 & SP done) Porting Rockbox to the gmini: see drivers list. Update Ca...text/html2005-01-09T10:30:31+01:00jyp@81.240.12.95buttons
http://www.donat.org/archos/wiki/doku.php?id=buttons
Buttons are connected to analog gates 6 & 7. Values measured on my gmini SP. Button low value high value left 6C 180 down 15B 250 right 230 2F0 up 315 350 Button low value high value ...text/html2005-01-01T09:59:37+01:00jyp@217.136.15.141temp_paste_page
http://www.donat.org/archos/wiki/doku.php?id=temp_paste_page
#define IOBASE (0x3f0000) #define MMIO(t, x) (*(unsigned t*)(IOBASE+(x))) #define P0 MMIO(char, 0x30) #define P2 MMIO(char, 0x32) #define WDTCON MMIO(char, 0x07) void clearWatchdog() { WDTCON = 0x0A; } enum lcd_command {collo = 0x0, colhi = 0x1,...text/html2004-12-29T07:15:09+01:00jyp@217.136.21.23aaz
http://www.donat.org/archos/wiki/doku.php?id=aaz
AAZ format Offset Size Archos name Content 0 4 StructureVersion header version (==2) 4 4 UpdateTargetAddr Target address (usually 0x6000) 8 4 SoftwareByteCount Flash size (excluding the 0x100-byte header) ...text/html2004-12-22T16:54:24+01:00jyp@80.200.135.243i2c
http://www.donat.org/archos/wiki/doku.php?id=i2c
I2C http://www.semiconductors.philips.com/markets/mms/protocols/i2c/ i2c uses i/o port 3. ...text/html2004-12-22T15:36:21+01:00jyp@81.240.2.242backdoor
http://www.donat.org/archos/wiki/doku.php?id=backdoor
The Backdoor Archos has been kind enough to provide a UART bound backdoor in the gmini. Physical access to UART http://www.donat.org/archos/temp/port%20analysis/port-trace.gif http://www.donat.org/archos/temp/port%20analysis/serial.jpg JTAG? N...text/html2004-12-21T05:48:23+01:00jyp@81.240.2.242gmemu-output-20041221
http://www.donat.org/archos/wiki/doku.php?id=gmemu-output-20041221
[created] ../src/qgmemu aaz/FirmwareGmini100_v1100.aaz map/FirmwareGmini100_v1100.map Loaded 0x6100 bytes @ 0x0 Loading aaz/FirmwareGmini100_v1100.aaz Loaded 0x70d56 bytes @ 0x6000 Could not open map file: ./symbols.std Loading symbols from map/FirmwareGmini1...text/html2004-12-21T05:47:43+01:00jyp@81.240.2.242gmemu_output
http://www.donat.org/archos/wiki/doku.php?id=gmemu_output
gmEmu output from various stages gmEmu-output-20041124 gmEmu-output-20041128 gmEmu-output-20041129 gmEmu-output-220-boot gmEmu-output-new-aos gmEmu-output-backdoor gmEmu-output-20041213 gmEmu-output-20041221 ...text/html2004-12-19T11:14:57+01:00jyp@217.136.26.142calmmac
http://www.donat.org/archos/wiki/doku.php?id=calmmac
Instruction table Abbreviations bs Mnemonic Encoding Description BK0 0000 MSR2[12] BK1 0001 MSR2[13] BK2 0010 MSR2[14] BK3 0011 MSR2[15] ME0 0100 MSR0[12] ME1 0101 MSR0[13] ME2 ...text/html2004-12-14T16:50:48+01:00jyp@80.200.199.190lcd
http://www.donat.org/archos/wiki/doku.php?id=lcd
LCD 120 & SP LCD register port is P0, LCD address port is P2, bits[235]. LCD memory is layout as such: 8 lines, 128 columns. Each cell is a byte of memory corresponding to 8 pixel in a line, arranged vertically. To issue a command to LCD, set...text/html2004-12-13T14:37:11+01:00jyp@217.136.6.170gmemu-output-20041213
http://www.donat.org/archos/wiki/doku.php?id=gmemu-output-20041213
[created] Loaded 0x6100 bytes @ 0x0 Loading ../aaz/FirmwareGmini100_v1100.aaz Loaded 0x70d56 bytes @ 0x6000 Loading symbols from ./symbols.std: 402 symbols loaded. Loading symbols from ../aaz/FirmwareGmini100_v1100.map: 901 symbols loaded. Loading comments fr...text/html2004-12-12T07:59:24+01:00jyp@217.136.6.228interrupts
http://www.donat.org/archos/wiki/doku.php?id=interrupts
Interrupts Datasheet page 24 for general description. Datasheet page 28 for detailed description. Datasheet page 35 for interrupt conrol registers. In Archos firmware, the interrupt calls an handler given in a table located at 0x207F80. 00207f80...text/html2004-12-11T07:15:48+01:00jyp@217.136.9.79rtc_clock
http://www.donat.org/archos/wiki/doku.php?id=rtc_clock
M41ST84Y M41ST84W Connected to I2C bus, slave address 0xD0. ...