Burstcart cpld-44

ytmytm·plus4-burstcart·burstcart-cpld/kicad/burstcart-cpld-44.kicad_pcb

Burstcart cpld-44 PCB layout, top view — open source board by ytmytm

About the Burstcart cpld-44 PCB

Burstcart cpld-44 is an open source PCB design by ytmytm, published on GitHub. It is a 2-layer board measuring 56 × 91 mm, with 16 components from 11 distinct parts.

Other key parts include the 27C512, XC9572XL-VQ44, AMS1117-3.3 and C16_CARTRIDGE. By type, the board carries 6 capacitors, 4 ICs, 4 connectors and 2 resistors.

It belongs with the retro computing designs in this gallery.

From the project

Burst (fast serial) capable cartridge for Commodore C16/116/Plus4

This Plus/4 cartridge implements both fast serial burst for 1570/1571/1581 drives and a parallel connection for the 1541 drive, enabling high-speed data transfers.

The project started as a response to a question from Plus/4 World Forum.

In order to use the Burst (fast serial) protocol as implemented on the C128, we need a bidirectional hardware serial port.

The published version uses VIA 6522 chips, which are still relatively easy to obtain. The additional logic addresses a VIA hardware bug that can lead to framing errors and lost bits when the serial port is externally clocked, as is the…

Burstcart cpld-44, from the project README — From the project README

Main components on the Burstcart cpld-44

27C512 XC9572XL-VQ44 AMS1117-3.3 C16_CARTRIDGE

Burstcart cpld-44 bill of materials (BOM)

16 components, 11 distinct parts.

Qty	Part	Footprint	Refs
1	27C512	DIP-28_W15.24mm_Socket	U1
1	XC9572XL-VQ44	TQFP-44_10x10mm_P0.8mm	U2
1	AMS1117-3.3	SOT-223-3_TabPin2	U3
1	C16_CARTRIDGE	C16_CART	U$1
2	IEC	DIN6	J1, J2
1	AMS1117	PinHeader_1x03_P2.54mm_Vertical	J3
1	JTAG	PinHeader_1x06_P2.54mm_Vertical	J4
1	10uF	CP_Radial_D5.0mm_P2.00mm	C1
2	10µ	CP_EIA-3216-12_Kemet-S_Pad1.58x1.35mm_HandSolder	C2, C3
3	0.1uF	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C4, C5, C6
2	3K3	R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R2, R3

Burstcart cpld-44 design files

The KiCad project lives in the ytmytm/plus4-burstcart repository on GitHub; these links point at the commit this page was built from.

Burstcart cpld-44: common questions

How big is the Burstcart cpld-44 PCB?

The Burstcart cpld-44 measures 56 × 91 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Burstcart cpld-44?

16 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Burstcart cpld-44 design files?

From the ytmytm/plus4-burstcart repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Burstcart cpld-44 design in my own project?

The repository has no license, so all rights stay with ytmytm. Use it as a reference, and ask the author before reusing the design.

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