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panasonic_kx_tg6861 [2025/01/04 11:11] – [PP KX-TGA685EX] mazzoopanasonic_kx_tg6861 [2025/01/05 17:13] (current) – [UART commands] mazzoo
Line 1: Line 1:
 ====== Panasonic KX-TG6861 ====== ====== Panasonic KX-TG6861 ======
  
-con:+===== hackvalue =====
  
-- hackvalue maybe low due to DSPG chipset 
  
-pro:+con PP: 
 + 
 +- DSPG chipset 
 + 
 +pro PP:
  
 - SPI flash should be read and writable easily - SPI flash should be read and writable easily
 +
 - cheap, 25€ at store, FP with PP - cheap, 25€ at store, FP with PP
 +
 - ARM926 - ARM926
  
-===== FP KX-TG6861GB =====+- JTAG pins exposed (and labelled) 
 + 
 +pro FP: 
 + 
 +- dialog SC14441 
 + 
 +con FP: 
 + 
 + 
 + 
 +===== FP: KX-TG6861GB ===== 
 + 
 +{{::photo_2025-01-04_14-13-11.jpg?400|}} 
 + 
 +Pins 
 + 
 +<code> 
 +    GND  -5.5V 
 +    URX  UTX 
 +</code> 
 + 
 +UART seems to be 1V8, 19200 baud, at boot prints 
 + 
 +''\\ \\ OK1\\ \\ '' 
 + 
 +pressing ''?<CR>'' responds with ''There is no help'' 
 + 
 +every upper and lower case single char followed by ''<CR>'' prints ''command unknown'' 
 + 
 +==== UART commands ==== 
 + 
 +**might be incomplete/too long** found by brute forcing three-char commands 
 + 
 +<code> 
 +ada 
 +adc - start ADC0 and ADC1 sampling, and print to uart 
 +adj 
 +ads 
 +akt - no params - OK 
 +ant - allows 0, 1, 2, 3 as param - antenna? 
 +aud 
 +bel 
 +bof 
 +bom 
 +bon - allows 0, 1, 2 as param 
 +btc 
 +bts 
 +btx 
 +buz 
 +cbc 
 +cgs - no params - OK 
 +cid - no params - 0000 
 +cli 
 +cps 
 +crx 
 +cwc - no params - FFFF 
 +dbm 
 +dmv 
 +dto 
 +ecb - FF 
 +ecc 
 +ecw - FFFF 
 +epc - DD 
 +epd 
 +epf 
 +epr 
 +eps 
 +epv - 5B9C or 2CCE 
 +epw 
 +esc 
 +fer - 00 
 +fld 
 +fle 
 +flr 
 +fls - NAK 
 +gtl - 0000 
 +hok 
 +hrl 
 +hsl 
 +idr - FF FF FF FF FF 
 +idw 
 +key 
 +lcd - '  This command is not prepared' 
 +led - '  This command is not prepared' 
 +lim 
 +lnv - 00 
 +lpr - 00 
 +mgr - FF 
 +mgw 
 +mic - FFFF 
 +mip - FFFF 
 +mmn 
 +moc 
 +mss 
 +mtx 
 +ner 
 +new 
 +odb - OK 
 +odh - OK 
 +odl - OK 
 +pal - OK 
 +pan - OK 
 +pap - FFFF 
 +pdl 
 +per - 00 
 +pew - OK 
 +pid - prints "1: 2: 3: 4: 5: 6: " with newlines otherwise empty 
 +ply - prints "PLAY Start" with params 0, 1 
 +rcd - OK 
 +rci 
 +rec - prints "REC Start" with params 0, 1 
 +red 
 +reg 
 +rfa - OK 
 +rfb - print/choose region "EU 0-4ch\n<Usage>RFB 0:EU\n1:US\n2:EU 0-4ch\n3:3ch Shift(Japan) for TEL\n4:4ch\nShift(Japan) for TEL\n5:LA\n6:LB\n7:Taiwan\n8:JP\n9:JP 0-4,9ch" 
 +rfd - OK 
 +rfq - OK 
 +rfr - FF FF FF FF FF 
 +rft 
 +rfw 
 +rgs - FFFFFFFF 
 +rio 
 +rss - 00 00 
 +rst - RESET the device 
 +rwd 
 +scr 
 +sdh - 1FC8 
 +sdl - 15BC 
 +sfr - 0270 
 +sgr - FF 
 +sgw 
 +slf - 08B4 - takes a second or so 
 +smr 
 +sms 
 +srl 
 +stp - prints "STOP" 
 +tdt - 0 
 +tpc 
 +trc 
 +tst 
 +vac 
 +vda 
 +vdd - 08 
 +ver - print version "DG41EC 14.02" 
 +vfw 
 +vpd - NAK 
 +vpe - ACK 
 +vpi 
 +vpl 
 +vrd 
 +vrg 
 +vrm 
 +vse 
 +vwt 
 +wcr 
 +wgs 
 +wrt 
 +wwd 
 +</code> 
 + 
 +==== chipset ==== 
 + 
 +- IC501: dialog SC14441 
 + 
 +- IC601: P25Q16L 1.8V single/dual/quad SPI flash 16MBit 
 + 
 +- IC502: 25Q16JWSIM winbond 1.8V dual/quad SPI flash 16MBit 
 + 
 +- IC902: PH408A 8bit GPIO expander I2C 
 + 
 +strange, why two SPI flashes of same size from different vendors? 
  
  
Line 27: Line 203:
     - (c) (M) 2010 DSPG     - (c) (M) 2010 DSPG
     - 88 pin     - 88 pin
 +    - {{::screenshot_2025-01-04_12-18-06.png?400|}}
  
 - PCB - PCB
Line 35: Line 212:
         - 1MByte         - 1MByte
         - 1.8V         - 1.8V
 +        - {{::screenshot_2025-01-04_12-15-31.png?400|}}
     - IC3 SOIC8     - IC3 SOIC8
         - ST 24C32FP         - ST 24C32FP
         - 32Kbit I2C EEPROM         - 32Kbit I2C EEPROM
         - 4kBytes         - 4kBytes
 +        - {{:screenshot_2025-01-04_12-16-45.png?400|}}
     - labelled pads, left, under ant, from top to bottom     - labelled pads, left, under ant, from top to bottom
         - GND_J         - GND_J
Line 48: Line 227:
         - VDDC = 1.16V         - VDDC = 1.16V
         - CP3V = 3.05V         - CP3V = 3.05V
 +
 +{{:23-48-34.jpg?400|}}
 +{{:23-48-48.jpg?400|}}
  
     - labelled pads, right     - labelled pads, right