The BeebSCSI 7_7 version board is an incremental improvement over the previous 7_5 version and is intended for professional PCB manufacturing. The new features are as follows:
- Smaller PCB (66 x 51mm)
- Four M3 mounting holes (fits both Master AIV slot as well as external case mounting)
- Straight and right-angle configuration (all sockets and headers can now be right-angled if required)
- Single JTAG programming chain with shared header (between AVR and CPLD)
- Support for Tag-Connect programming adapters
- Fiducial markers for pick-and-place manufacturing compatibility
- All components on top-copper layer
- Improved silkscreen with better component orientation markers
- Design rebuilt using KiCAD rather than (closed-source) EagleCAD
- New microSD socket (provides overhang of the microSD card for better internal and case mounting options)
- All active and passive component SMT (except headers and connectors)
- JST-EH power connector to prevent incorrect cable orientation
- USB to AVR header with required USB support components (to support future expansion)
- All SMT passives now 0805 footprint
Read more about BeebSCSI on the BeebSCSI overview page.