Geoffrey Swales
UNITED KINGDOM • + Follow
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Description
MINIMAL 6502 SINGLE BOARD COMPUTER: CRAB APPLE I
A simple 6502 based computer which is compatible with the Apple I computer from the 1970s.
It uses a PIC18F to act as a serial UART. This also enables a menu to adjust BAUD rate and CPU clock speed (1,2,4MHz).
The system has 32k of SRAM and uses an 8K EEPROM for the OS.
Code
Schematic and Layout
Jan 17,2023
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MINIMAL 6502 SINGLE BOARD COMPUTER: CRAB APPLE I
2 Layers PCB 69.8 x 74.3 mm FR-4, 1.6 mm, 1, HASL with lead, Green Solder Mask, White silkscreen
A VERY SIMPLE 6502 BASED SINGLE BOARD COMPUTER BASED ON THE APPLE I
USES A PIC18F AS SERIAL CONNECTION TO PC TERMINAL
1549
7
2
Published: Jan 17,2023
Download Gerber file 20
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- Steve Mar 08,2024
- Engineer Nov 18,2023
- Michael McLaren Nov 16,2023
- Geoffrey Swales Sep 13,2023
- Mike Bush Jul 26,2023
- Hein Pragt Apr 18,2023
- Justin McDermid Jan 23,2023
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