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Keycard Shell
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Overview
Core concepts
Build your Keycard
Getting Started
Supported Wallets
Troubleshooting
Updating Firmware
Java SDK
Web3 API Extension
APDU API
Resources
Hardware Specifications
Keycard Shell internals
Contact
Developers
Hardware Specifications
20 Oct 2018
#
Hardware Specification
#
Keycard
Keycard applet runs on any JavaCard 3.0.4+ (see
applet installation
)
We use for manufacturing:
model:
NXP JCOP4
interfaces:
NFC, ISO7816
EAL6+ certified
#
Keycard Shell
MCU:
STM32H5
interfaces:
12-key keypad, power button, TFT color display, camera, smartcard reader, USB-C
battery:
replaceable BL-4C
flash map:
2MB dual-bank flash, with 32KB bootloader + 608KB firmware + 384KB data per bank
more details:
hardware files, schematics, and firmware sources are in the
Keycard Shell repo
.
Last edited
20 Oct 2018
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Keycard
Keycard Shell