Blockstream BLKS048 Jade Debuts Open-Source Hardware Bitcoin Wallet Instruction Manual
- June 6, 2024
- Blockstream
Table of Contents
JADE V1.1
OUTLINE
Blockstream Jade v1.1 is an ESP32 board based on the ESP32-D0WDQ6-V3 module, containing a 1.14-inch TFT screen. The board is made of PC+ABC.
Hardware Composition
The hardware of Blockstream Jade v1.1 : ESP32-D0WDQ6-V3, TFT screen, camera, Button, TypeC-to-USB interface, Power Management chip, and battery.
ESP32 is a single 2.4 GHz Wi-Fi and Bluetooth combo chip designed with the TSMC ultra-low-power 40 technology. It is designed to achieve the best power and RF performance, showing robustness, versatility, and reliability in a wide variety of applications and power scenarios.
The LCD is a 1.14-inch color screen driven by st7789, with a resolution of 135 ×240. Working temperature -30-85℃.
The power management chip is the AXP192 chip of X-Powers. The operating voltage ranges from 2.9V to 6.3V. Charging current of 1.4A.
PIN DESCRIPTION
USB INTERFACE
Blockstream Jade v1.1 Configuration Type-C type USB interface, support USB2.0 standard communication protocol.
FUNCTIONAL DESCRIPTION
This chapter describes the ESP32-D0WDQ6-V3 various modules and functions.
CPU AND MEMORY
ESP32 contains one or two low-power Xtensa®32-bit LX6 microprocessor(s) with the following features::
- 448-KB of ROM, and the program starts for the kernel function calls
- For a 520 KB instruction and data storage chip SRAM
- RTC flash memory of 8 KB SRAM, when the RTC can be started in Deep-sleep mode, and for storing data accessed by the main CPU
- RTC slow memory, of 8 KB SRAM, can be accessed by the coprocessor in Deep-sleep mode
- Of 1 kbit of use, which is a 256-bit system-specific (MAC address and a chipset); the remaining 768 bit reserved for the user program, these Flash programs include encryption and chip ID
STORAGE DESCRIPTION
3.2.1. External Flash and SRAM
ESP32 supports multiple external QSPI flashes and static random access memory
(SRAM), having hardware-based AES encryption to protect the user programs and
data.
- ESP32 access external QSPI Flash and SRAM by caching. Up to 16 MB external Flash code space is mapped into the CPU, supports 8-bit, 16-bit, and 32-bit access, and can execute code.
- Up to 8 MB external Flash and SRAM mapped to the CPU data space, support for 8-bit, 16-bit, and 32-bit access. Flash supports only read operations, SRAM supports read and write operations.
RTC MANAGEMENT AND LOW POWER CONSUMPTION
ESP32 uses advanced power management techniques that may be switched between different power-saving modes. (See Table 5).
-
Power saving mode
– Active Mode: RF chip is operating. The chip may receive and transmit a sounding signal.
– Modem-sleep mode: CPU can run, the clock may be configured. Wi-Fi/Bluetooth baseband and RF
– Light-sleep mode: CPU suspended. RTC and memory and peripherals ULPcoprocessor operation. Any wake-up event (MAC, host, RTC timer, or external
interrupt) will wake up the chip.
– Deep-sleep mode: only the RTC memory and peripherals in a working state. Wi- Fi and Bluetooth connectivity data stored in the RTC. ULP coprocessor can work.
– Hibernation Mode: 8 MHz oscillator and a built-in coprocessor ULP are disabled. RTC memory to restore the power supply is cut off. Only one RTC clock timer is located on the slow clock and some RTC GPIO at work. RTC RTC clock or timer can wake up from the GPIO Hibernation mode. -
Deep-sleep mode
– related sleep mode: power saves mode switching between Active, Modem-sleep, Light-sleep mode. CPU, Wi-Fi, Bluetooth, and radio preset time interval to be awakened, to ensure connection Wi-Fi / Bluetooth.
– Ultra Low-power sensor monitoring methods: the main system is Deep-sleep mode, ULP coprocessor is periodically opened or closed to measure sensor data.
The sensor measures data, ULP coprocessor decides whether to wake up the main system.
Functions in different power consumption modes: TABLE 5
Power consumption mode| Active| Modem-sleep| Light-sleep|
Deep-sleep| Hibernation
---|---|---|---|---|---
Sleep mode| Associated sleep mode| Ultra-low-power Sensor measures data| –
CPU| open| open| pause| close| close
Wi-Fi/Bluetooth Radio| open| open| close| close| close
RTC memory| open| open| open| open| close
ULP coprocessor| open| open| open| open/close| close
Press and hold the side power button for two seconds to start the device. Press and hold for more than 6 seconds to turn off the device. Switch to the photo mode through the Home screen, and the avatar that can be obtained through the camera is displayed on the TFT screen. The USB cable must be connected when working, and the lithium battery is used for short-term storage to prevent power failure.
FCC Statement:
Any changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must
accept any interference received, including interference that may cause
undesired operation.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. This equipment should be installed and operated with
a minimum distance of 20cm between the radiator& your body.
Note: This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates uses and
can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
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