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3

Assembly

The R65X1Q SBC is designed to be easy to assemble for anyone with moderate soldering ability. It
is a moderately complex board and will typically require between one and three hours of assembly
time, depending on the skill of the assembler. The following tools will be required:

Soldering iron, 20-40 W recommended, grounded tip

Solder, 63/37 leaded solder recommended, Kester “44 Core” or similar

Diagonal cutters or flush cutters

Solder braid, solder sucker, or desoldering station, in the event errors are made

Needle-nose pliers for bending component leads

1/4 and 1/8 W resistor lead forms (optional)

This manual does not cover basic soldering technique. If you are new to soldering, we recommend the
Adafruit soldering guide and plenty of practice on a piece of protoboard before beginning assembly
of this kit. The Adafruit guide can be found at:

https://learn.adafruit.com/adafruit-guide-excellent-soldering

3.1

Assembling the R65X1Q SBC

If you purchased a full Glitch Works parts kit, we recommend completing all assembly sections, since
extra features can be disabled as needed. If supplying your own parts, you may choose which sections
to complete based on the functionality required.

Note that pin 1 is designated with a square pad for all ICs, resistor packs, switches, and most
connectors. Pin 1 is toward the top of the board, as seen from the front, for all ICs, switch packs,
and radial electrolytic capacitors. The component (front) side of the board is the side which contains
the white silkscreen legend. It is recommended to install components from shortest to tallest, which
makes assembly without an assembly vise or jig easier, assuming the board is flipped over and soldered
with the component side resting on a table top.

Some jumper headers and connector headers are press-fit and may require a bit of force or gentle
wiggling to install. This is normal and helps keep the headers in place when the board is flipped over
for soldering.

5

Summary of Contents for GW-R65X1QSBC-1

Page 1: ...11Q SBC GW R65X1QSBC 1 User s Manual and Assembly Guide Revision 2 2020 10 03 c 2020 Glitch Works LLC http www glitchwrks com This manual is licensed under a Creative Commons Attribution NonCommercial...

Page 2: ...6 3 3 Insert Socketed ICs 6 3 4 Assemble Console Cable 7 3 5 Optional Glitchbus Expansion 7 4 Initial Checkout and Testing 8 4 1 Troubleshooting 8 4 2 Repair and Service 8 5 Technical Notes 9 5 1 Por...

Page 3: ...r the storage of file records in ROM These records can be loaded from the monitor or automatically selected by option switches on reset power up This also allows for in board updates without overwriti...

Page 4: ...speed is required it is recommended that a 2 MHz system clock be used While Rockwell only specs the A suffix R6501AQ and R6511AQ for 2 MHz operation internal testing has shown good results with runni...

Page 5: ...e or below the SBC using PC 104 style stacking headers The R65X1Q SBC can also be used with right angle headers and a Glitchbus backplane The Glitchbus includes signals for separate memory and I O add...

Page 6: ...com adafruit guide excellent soldering 3 1 Assembling the R65X1Q SBC If you purchased a full Glitch Works parts kit we recommend completing all assembly sections since extra features can be disabled a...

Page 7: ...essors due to the force required for insertion and removal Note that QUIP package processors have a big notch at both ends and a smaller off center notch to indicate pin 1 Install 33 F 35 V capacitor...

Page 8: ...ins for software control Consult the schematic for more information A serial light box will help debug potential serial wiring problems we highly recommend the addition of a light box to your toolkit...

Page 9: ...ng If your R65X1Q SBC fails to come up recheck all solder joints for cold joints bridges or missed pins this is by far the most common problem we ve observed during assembly workshops Recheck con figu...

Page 10: ...lable at 0xF000 These bits are set on reset so that the last page of ROM is available for booting Writing to these bits immediately changes the ROM page Port C provides readback of these bits Bit 3 en...

Page 11: ...Glitch Works software to select the ROMFS record to load into memory at reset PA4 PA5 are used by Glitch Works software to set the console UART bitrate as described in Section 2 1 Configuring Console...

Page 12: ...1 ROM Compatibility The ROM socket at U2 is compatible with JEDEC standard 32K x 8 static RAM Ferroelectric RAM FeRAM and 28C256 EEPROMs It may not be compatible with some manufacturers UV EPROMs such...

Page 13: ...ve 1x 4 MHz crystal 1x Rockwell R6501Q CPU 1x 28C256 EEPROM preloaded with R65X1Q SBC firmware 1x JEDEC 62256 type 32K x 8 static RAM 1x 74LS04 hex inverter 1x 74LS10 triple 3 input NAND gate 1x 74LS2...

Page 14: ...parts list may be shipped as a 7404 74S04 74F04 74LS04 74ALS04 or 74HCT04 All 4 7 k resistors on the GW R65X1QSBC 1 are pull up or pull down resistors and may be any value from 2 2 k to 10 k even thou...

Page 15: ......

Page 16: ...CE 20 A10 21 OE 22 A11 23 A9 24 A8 25 A13 26 WE 27 A7 3 A6 4 A5 5 A4 6 A3 7 A2 8 A1 9 U2 32K ROM A7 A6 A5 A4 A3 A2 A1 A0 RPA0 A11 A10 A9 A8 RPA2 RPA1 D0 D2 D4 D6 D1 D3 D5 D7 C11 22p C10 22p GND GND 1...

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