# Bitcoin Miner Controller Board

## Description

Bitcoin miner controller board revised so J2 is a dedicated USB\-C USB 2\.0 control and monitoring connector feeding U2, while X1 is a dedicated 25 MHz oscillator driving IC1 on ASIC\_CLK for the mining subsystem\.

## Project Details

- **Owner:** thea\-flux\-testing
- **Created:** 5/13/2026
- **Last Updated:** 5/13/2026
- **Visibility:** Public
- **Domain:** Bitcoin Mining Hardware
- **Connector Type:** 12V power input, USB\-C service port, UART debug header, fan header, mining interface header
- **Connectivity:** USB primary control and monitoring; SWD debug only
- **System Architecture:** \`\`\`mermaid flowchart TD     VIN\[12V DC Input\] \-\-\> PROT\[Input Protection and Fuse\]     PROT \-\-\> BUCK\[Core Buck Regulator 0\.8V\]     PROT \-\-\> AUX\[AUX Buck Regulator 5V\]     AUX \-\-\> LDO\[LDO 3\.3V\]     BUCK \-\-\> HASH\[Mining Hash Module\]     LDO \-\-\> MCU\[Control MCU\]     LDO \-\-\> OSC\[Clock Buffer and Oscillator\]     MCU \-\-\> HASH     OSC \-\-\> HASH     MCU \-\-\> UART\[UART Debug Header\]     MCU \-\-\> USB\[USB C Power and UART Port\]     HASH \-\-\> THERM\[Thermal Monitor and Fan Header\] \`\`\`
- **Operating Voltage:** 12V
- **Compliance:** Prototype / evaluation hardware only
- **Implementation Details:** Primary host interface is USB through the on\-board USB\-to\-UART bridge and USB\-C connector\. SWD header is retained only for programming and bring\-up\. Mining subsystem uses dedicated 25MHz oscillator X1 into BM1397 CLKI\.
- **Power Requirements:** 12V input main power path with USB used for control and monitoring interface support
- **Manufacturing Quantity Target:** Prototype
- **Acceptance Criteria:** USB is the primary control and monitoring interface, SWD is secondary debug only, and the mining core receives a stable dedicated 25MHz reference clock from X1\.
- **Forks:** 1

*The full schematic, PCB layout, bill of materials, and interactive design are available at [https://flux\.ai/thea\-flux\-testing/bitcoin\-miner\-controller\-board\~g6](https://flux.ai/thea-flux-testing/bitcoin-miner-controller-board~g6).*

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*Generated from [https://flux\.ai/thea\-flux\-testing/bitcoin\-miner\-controller\-board\~g6](https://flux.ai/thea-flux-testing/bitcoin-miner-controller-board~g6)*