Serial Eeprom Programmer 93c56
• Product Information In-circuit serial EEPROM programmer. Special made for in-circuit serial EEPROM programming. Very useful to make car electronic programming faster and easy without soldering. In most cases short microcontroller quartz resonator or short MPU reset pin to GND. Software module 6 – Fiat, Lancia, Alfa Romeo, Maserati CODE2 with BSI Marelli Price: 100 80 Euro Memory device is Motorola MCU, which can be either MC68HC912DG128 or MC9S12DG256, both QFP 112 package. You can read and write Motorola with TMPro, For MC68HC912DG128 expected file size is 2048 bytes, for MC9S12DG256 file size must be 4096 bytes.
Microchip's vast serial EEPROM offering has a storage range from 128 bits to 1 Mbits and an operating voltage range of 1.7 V to 5.5 V. SI-Prog is the programmer hardware interface for PonyProg. With PonyProg and SI-Prog you can program Wafercard for SAT, eeprom within GSM, TV or CAR-RADIO. Furthermore it can be used as a low cost starter kit for PIC and AVR.
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Software module 20 – Opel IMMO2 immobox Siemens Price: 100 80 Euro Memory device is Texas Instrument MCU TMS370C702 PLCC28 package or Motorola MCU HC908AB16A QFP64 package. Motorola is locked, password for reading eeprom area is F3-B1-F3-AB-F3-A5-F3-9F. Expected file size is 256 bytes.
Use PCF7935 or Silca T15 – JMA TP14 transponder. Written transponder is ready programmed to start the vehicle. Vehicles equipped with this unit: Opel: Agila, Astra G, Combo C, Corsa C, Meriva, Omega(1999-), Sintra(1999-), Tigra, Vectra B(1999-), Zafira. Software module 23 – VW, Seat IMMO2 immobox Siemens Price: 100 80 Euro Memory device is Texas Instrument MCU TMS370C702 PLCC28 package. Expected file size is 256 bytes.
Here's the datasheet. You need access to the CS, SK,DI DO, VCC and GND pins. Is there a connector next to this chip which does this? I'll see if I can find my old bitbasher - but given the datasheet you could figure it out. Given that it's 'in-circuit'- I presume soldered - you'll probably need to break the leads to CS, SK,DI DO, so as to prevent the existing curcuitry from preventing your operations. Since I dont know the format, and this chip may contain lots of other data, the first thing I'd do is download it's existing data into a fiole, and see what's there. But not that easy.
If you had the appropriate sw from the manufacturer I bet you could do this via the OBDII connector - but I also bet they're not telling you how! It may be cheaper and less risky to go to a Cherokee dealer and get him to do it. Regards Allan regards.