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GBFlasher Micro 1.5

author: HDR
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2 layer board of 1.89 x 0.77 inches (47.9 x 19.7 mm)
Uploaded: December 05, 2019
Shared: December 05, 2019
Total Price: $7.30

The worlds smallest Game Boy cart flasher!

Requires https://oshpark.com/shared_projects/OUjmrtRg to flashing the firmware

BOM

Reference Part Number Description
C1 0603F104M500NT 100nF
C2 CL10A106MQ8NNND 10uF
C3 0603F104M500NT 100nF
Atmega8515 Atmega8515L-8AU Atmega8515L-8AU is not compatible
FT232RL FT232RL Buy from Aliexpress
J0 Buy from Aliexpress Cartridge Reader
J1 Type-C-31-M-12 USB Type C Receptacle
PWR Everlight Elec 19-217/GHC-YR1S2/3T Green 0603 LED
R/W Everlight Elec 19-217/R6C-AL1M2VY/3T Red 0603 LED
F1 MF-FSMF050X-2 500mA PTC Fuse
R1 CR0603JA0102G 1K
R2 CR0603JA0102G 1K
R3 0603WAJ0103T5E 10K
R4 0603WAJ0512T5E 5.1K (Only required for USB C to USB C cables)
R5 0603WAJ0512T5E 5.1K (Only required for USB C to USB C cables)
X1 S3D6.000000B20F30T 6MHz Crystal

1.1 Changelog:

  • Added indicators for the chips and header to make the pcb easier to assemble

  • Added indicator for LED positioning

  • Reduced pcb height by 0.3mm

  • Fixed positioning of cartridge reader guide holes

  • Renamed IC1 and IC3 to make more sense

1.2 Changelog:

  • Reduced pcb height by 1.4mm

  • Relocated componetnts to fit within the new size

  • Modified footprint for cart reader

  • Replaced the crystal (ECS-60-32-5PXDN-TR) with FQ1045A-6.000 to as this component is only 1.7mm tall instead of 4.3mm

1.3 Changelog:

  • Fixed incorrect crystal footprint

1.4 Changelog:

  • Fixed incorrect wiring to crystal

1.5 Changelog:

  • Replaced the micro usb port with a USB Type C port

  • Removed the ISP header in favor of flashing using the cart bus https://oshpark.com/shared_projects/OUjmrtRg

  • Replaced the crystal with one that is smaller and does not require 2 capacitors

  • Removed redundant capacitors

  • Removed the leds for TXD and RXD and their resistors

  • Reduced board width by 0.3mm

  • Reduced board height by 1.8mm

  • Reduced board layers from 4 to 2, this cuts the price in half

  • Reduced the size of the cart reader footprint, this now requires some trimming of the pins to fit

The worlds smallest Game Boy cart flasher!

Requires https://oshpark.com/shared_projects/OUjmrtRg to flashing the firmware

BOM

Reference Part Number Description
C1 0603F104M500NT 100nF
C2 CL10A106MQ8NNND 10uF
C3 0603F104M500NT 100nF
Atmega8515 Atmega8515L-8AU Atmega8515L-8AU is not compatible
FT232RL FT232RL Buy from Aliexpress
J0 Buy from Aliexpress Cartridge Reader
J1 Type-C-31-M-12 USB Type C Receptacle
PWR Everlight Elec 19-217/GHC-YR1S2/3T Green 0603 LED
R/W Everlight Elec 19-217/R6C-AL1M2VY/3T Red 0603 LED
F1 MF-FSMF050X-2 500mA PTC Fuse
R1 CR0603JA0102G 1K
R2 CR0603JA0102G 1K
R3 0603WAJ0103T5E 10K
R4 0603WAJ0512T5E 5.1K (Only required for USB C to USB C cables)
R5 0603WAJ0512T5E 5.1K (Only required for USB C to USB C cables)
X1 S3D6.000000B20F30T 6MHz Crystal

1.1 Changelog:

  • Added indicators for the chips and header to make the pcb easier to assemble

  • Added indicator for LED positioning

  • Reduced pcb height by 0.3mm

  • Fixed positioning of cartridge reader guide holes

  • Renamed IC1 and IC3 to make more sense

1.2 Changelog:

  • Reduced pcb height by 1.4mm

  • Relocated componetnts to fit within the new size

  • Modified footprint for cart reader

  • Replaced the crystal (ECS-60-32-5PXDN-TR) with FQ1045A-6.000 to as this component is only 1.7mm tall instead of 4.3mm

1.3 Changelog:

  • Fixed incorrect crystal footprint

1.4 Changelog:

  • Fixed incorrect wiring to crystal

1.5 Changelog:

  • Replaced the micro usb port with a USB Type C port

  • Removed the ISP header in favor of flashing using the cart bus https://oshpark.com/shared_projects/OUjmrtRg

  • Replaced the crystal with one that is smaller and does not require 2 capacitors

  • Removed redundant capacitors

  • Removed the leds for TXD and RXD and their resistors

  • Reduced board width by 0.3mm

  • Reduced board height by 1.8mm

  • Reduced board layers from 4 to 2, this cuts the price in half

  • Reduced the size of the cart reader footprint, this now requires some trimming of the pins to fit

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      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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