Z80-MBC2 Build Notes

• ebay - bare PCB $8
  • Arrived in a couple of days

Build Notes

• An Easy to Build Real Homemade Computer: Z80-MBC2! - Instructable was helpful
• Hackaday project with files
• Build took less than 2 hours
• Used mostly junk box parts
• Purchased alternate SRAM
  • AS6C1008-55PIN
• Forgot to buy SIP resistors - made my own
• Ref des are not top-bottom or left-right
  • PDF Assembly drawing text is not searchable
  • Struggled to find some of the resistors
• KiCad Gerbers

Programming THE ATMEGA32

• Was able to use ATProgHead running Arduino as ISP to burn bootloader but not program the code
• Could not use any of my FTDI cards fir serial programming since the have RTS/CTS but not DTR
  • Most programmer setups in Arduino work just fine for serial, but not the
• Used TL866ii to program ATMEGA32 fuses
  • Reference: Setting AVR Fuse Bits
  • If you use the programmer defaults it sets the clock to 1 MHz which gives a serial port rate of 600 baud (told me I needed to fix the fuses).