SD2iEC & EPYX FAST LOAD CARTRIDGE V2 (TQFP)

This, SD2iEC & Epyx Fast Load Cartridge V2 PCB is also available for TQFP package ATMEGA644P and ATMEGA1284, if you like, you may prefer to use TQFP package AT644P or AT1284, they are usualy cheaper and easy to find than DIP package models.

Other instructions are the same with first version.

https://www.pcbway.com/project/shareproject/_DIY__SD2iEC___EPYX_FAST_LOAD_CARTRIDGE_FOR_COMMODORE_64.html

If you want to program TQFP ATMEGA onboard then you should use DIP40 pins for ICSP connections. I used ATmeag644P and ATmega1284P compatible TQFP44 to DIP40 adapter Programmer socket, from aliexpress.com

DIP40 pin 6 = MOSI   

DIP40 pin 7 = MISO   

DIP40 pin 8 = SCK   

DIP40 pin 9 = RST   

DIP40 pin 10 = VCC

DIP40 pin 11 = GND

You can find MICRO SD version of this cartridge from this link

https://www.pcbway.com/project/shareproject/SD2iEC_EPYX_FAST_LOAD_CARTRIDGE_V2_1B_Micro_SD_for_COMMODORE_629a9866.html

Ps. While transfering data (reading or writing) from SD cards it should not be interrupted like power-off or Reset systems. Otherwise that may damage SD cards.

If you have a programmer capable of testing IC chips, such as the 74LS series, you should remember to test them before soldering. Some chips may be defective. (TL866 Minipro Programmer can test some logic ICs)

In order to protect your electronical devices, always turn off your Commodore computer before connecting or disconnecting the cables or any other device.

Gerber files and component list are subject to change without notice. Before paying for the PCBs, be sure to update your orders!

As you can see I have uploaded many projects and I am still working on new projects. If you have any questions, please look for answers online. Unless I specify explicitly, all my projects are tested and confirmed to work under normal circumstances before being shared. I'm sorry I didn't have enough time to answer all the questions.

Use this PCB at your own risk !

Have fun

Thank you.

C64iSTANBUL