2022-04-25

Soldered on the Mini Cortex board:

• U1 TMS9995 socket
• U3 74LS14
• U6 74LS688
• U9 omit FTDI module and use FTDI cable instead
• U10 74LS259
• U12 74LS74
• U13 74LS112
• U14 74LS138

2022-09-30

• U2 memory mapper socket, DIP40.
• U4 32K ROM socket, DIP28.
• U5 512K RAM socket, DIP32.
• U8 9902ANL, DIP18.
• U11, DIP24 socket for 22V10.
• X1 crystal, 12 MHz or near.
• J3 for FTDI cable.

2022-10-02

• R3 and R13 (LED resistors)

2022-10-16

• Program 32K EEPROM AT28C256 with firmware.
• Program U11 PAL ATF22V10C.

To do:

• Find and fit TMS9902 serial chip
• Test BASIC operation
• Find and fit memory mapper chip
• Fit compact flash