{ "plan": "- The core electrical design features an STM32L4 MCU, NXP SE051 Secure Element, Infineon SLB 9670 TPM 2.0, and TI TMP117 temperature sensor, Maxim MAX16162 supply supervisor, and PCB-routed active tamper mesh, integrated onto a 30x80mm, 4-layer PCB. - Power regulation is handled by a TI TPS73633 LDO, with LEDs and a piezo buzzer for status indication and tamper alerts. - The PCB is designed for two form factors: a USB-A stick variant housed in a two-piece clamshell enclosure, or an M.2 Key-E module. - The USB-A enclosure is an 84x24x9mm ABS+glass-fiber shell with integrated light pipes, a buzzer aperture, and internal ribs for PCB retention. - The M.2 Key-E variant leverages the host chassis for physical security and may include an optional copper heatspreader for thermal management. - Both variants feature specific labeling and compliance markings, with a teal accent stripe on the USB-A enclosure.", "nodes": [ { "id": "secure_element_se051", "name": "Secure Element", 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"https://www.amazon.com/s?k=M1.6x5mm%20Self-Tapping%20Screw&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl", "dimensions": "M1.6x5mm", "description": "Small self-tapping screw for securing the USB-A enclosure halves.", "productName": "M1.6x5mm Self-Tapping Screw", "purchaseUrl": "https://www.amazon.com/s?k=M1.6+self-tapping+screw", "estimatedCost": 0.05 }, { "id": "m1_6_self_tapping_screw_2", "name": "M1.6 Self-Tapping Screw (Corner 2)", "type": "misc", "partId": "dbf05bd3-d72a-470e-9a44-fc687e9e0e26", "category": "mechanical", "quantity": 1, "amazonUrl": "https://www.amazon.com/s?k=M1.6x5mm%20Self-Tapping%20Screw&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl", "dimensions": "M1.6x5mm", "description": "Small self-tapping screw for securing the USB-A enclosure halves.", "productName": "M1.6x5mm Self-Tapping Screw", "purchaseUrl": "https://www.amazon.com/s?k=M1.6+self-tapping+screw", "estimatedCost": 0.05 }, { "id": "tamper_security_label_usb_a", "name": "Tamper Evident Security Label (USB-A)", "type": "misc", "partId": "8388a85a-2f65-4582-86c5-2c3b6709a93a", "category": "mechanical", "quantity": 1, "amazonUrl": "https://www.amazon.com/s?k=Tamper%20Evident%20Security%20Seal&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl", "dimensions": "15x5mm", "description": "Security label applied across the seam of the USB-A enclosure to indicate tampering.", "productName": "Tamper Evident Security Seal", "purchaseUrl": "https://www.amazon.com/s?k=tamper+evident+security+seal", "estimatedCost": 0.2 }, { "id": "m2_brass_standoff_m2", "name": "M2 Brass Standoff for M.2 Module", "type": "misc", "partId": "c6c2b377-2061-4b67-bdc9-95f8a6583e7f", "category": "mechanical", "quantity": 1, "amazonUrl": "https://www.amazon.com/s?k=M2x4mm%20Brass%20Standoff&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl", "mountsFor": "connector_m2_key_e", "dimensions": "M2x4mm", "description": "Single M2 brass standoff for securing the M.2 Key-E module to the host chassis.", "productName": "M2x4mm Brass Standoff", "purchaseUrl": "https://www.amazon.com/s?k=m2+brass+standoff", "estimatedCost": 0.1 }, { "id": "optional_copper_heatspreader", "name": "Optional Copper Heatspreader (M.2)", "type": "structural", "partId": "3088e9f3-ba4f-4f25-9a53-b09eba1fe3fe", "category": "mechanical", "material": "Copper", "quantity": 1, "amazonUrl": "https://www.amazon.com/s?k=Copper%20Shim%20Heat%20Sink&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl", "mountsFor": "secure_element_se051", "dimensions": "30x20x1mm", "description": "Optional 1mm thick copper heatspreader bonded to U1 and U2 to conduct heat to the host chassis.", "productName": "Copper Shim Heat Sink", "purchaseUrl": "https://www.amazon.com/s?k=copper+shim+heat+sink+1mm", "estimatedCost": 3 }, { "id": "conformal_coating", "name": "Conformal Coating (Parylene-C)", "type": "misc", "partId": "c4bf054e-aa1a-4517-a0a8-b871dc7b9980", "category": "mechanical", "imageUrl": "https://imgs.search.brave.com/av_l2isFfqJ38MqqZaA30re_7vrB__ymtvfBs85VpxM/rs:fit:0:180:1:0/g:ce/aHR0cHM6Ly92c2lw/YXJ5bGVuZS5jb20v/d3AtY29udGVudC91/cGxvYWRzLzIwMjIv/MDkvYWR2YW50YWdl/cy1vZi1wYXJ5bGVu/ZS1jLWNvbmZvcm1h/bC1jb2F0aW5nLTEx/MHg4MC5wbmc", "material": "Parylene C", "quantity": 1, "amazonUrl": "https://www.amazon.com/s?k=Parylene-C%20Conformal%20Coating&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl", "dimensions": "N/A", "description": "Optional 25\u00b5m Parylene-C conformal coating for industrial deployment of the M.2 module.", "productName": "Parylene-C Conformal Coating", "purchaseUrl": "N/A - Applied by specialist", "estimatedCost": 2 }, { "id": "pcb_board_main", "name": "Main PCB Board", "type": "structural", "partId": "41bc8ed0-3083-4be9-b8fc-198aeb456feb", "category": "mechanical", "quantity": 1, "amazonUrl": "https://www.amazon.com/s?k=Custom%204-layer%20FR-4%20PCB&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl", "dimensions": "30x80x1.6mm", "description": "The central printed circuit board measuring 30x80mm, forming the core of both device variants.", "productName": "Custom 4-layer FR-4 PCB", "purchaseUrl": "https://www.amazon.com/s?k=custom+pcb+fabrication", "estimatedCost": 8 }, { "id": "usb_a_enclosure_top_shell_2", "name": "USB-A Enclosure Top Shell", "productName": "Custom 3D Print", "category": "mechanical", "type": "3d_printed", "quantity": 1, "estimatedCost": 5, "purchaseUrl": "https://www.xometry.com/", "description": "Top shell of the USB-A form factor enclosure.", "amazonUrl": "https://www.amazon.com/s?k=Custom%203D%20Print&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl" }, { "id": "usb_a_enclosure_bottom_shell_2", "name": "USB-A Enclosure Bottom Shell", "productName": "Custom 3D Print", "category": "mechanical", "type": "3d_printed", "quantity": 1, "estimatedCost": 5, "purchaseUrl": "https://www.xometry.com/", "description": "Bottom shell of the USB-A form factor enclosure.", "amazonUrl": "https://www.amazon.com/s?k=Custom%203D%20Print&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl" }, { "id": "pcb_retention_ribs_usb_a_2", "name": "PCB Retention Ribs", "productName": "Integrated into Enclosure", "category": "mechanical", "type": "structural", "quantity": 1, "estimatedCost": 0, "purchaseUrl": "", "description": "Internal ribs for PCB retention within the USB-A enclosure.", "amazonUrl": "https://www.amazon.com/s?k=Integrated%20into%20Enclosure&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl" }, { "id": "led_light_pipe_ld1_2", "name": "Light Pipe for Power LED", "productName": "Custom 3D Print", "category": "mechanical", "type": "3d_printed", "quantity": 1, "estimatedCost": 1, "purchaseUrl": "https://www.xometry.com/", "description": "Light pipe for the power indicator LED.", "amazonUrl": "https://www.amazon.com/s?k=Custom%203D%20Print&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl" }, { "id": "led_light_pipe_ld2_2", "name": "Light Pipe for Tier Indicator LED", "productName": "Custom 3D Print", "category": "mechanical", "type": "3d_printed", "quantity": 1, "estimatedCost": 1, "purchaseUrl": "https://www.xometry.com/", "description": "Light pipe for the tier indicator RGB LED.", "amazonUrl": "https://www.amazon.com/s?k=Custom%203D%20Print&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl" }, { "id": "led_light_pipe_ld3_2", "name": "Light Pipe for Alarm LED", "productName": "Custom 3D Print", "category": "mechanical", "type": "3d_printed", "quantity": 1, "estimatedCost": 1, "purchaseUrl": "https://www.xometry.com/", "description": "Light pipe for the alarm indicator LED.", "amazonUrl": "https://www.amazon.com/s?k=Custom%203D%20Print&linkCode=ll2&tag=-20&linkId=4ccf4163514d07f9bf547ac1c23fd3e0&language=en_US&ref_=as_li_ss_tl" }, { "id": "temp_sensor_tmp117", "name": "I\u00b2C Temperature Sensor", "pins": [ "I\u00b2C SCL", "I\u00b2C SDA", "3V3", "GND", "ALERT" ], "type": "sensor", "partId": "6cb72ede-c7ac-43a7-a125-0da329298873", "category": "electrical", "productName": "Texas Instruments TMP117AIDRVR", "purchaseUrl": "https://www.digikey.com/en/products/detail/texas-instruments/TMP117AIDRVR/12217686", "estimatedCost": 3.5, "quantity": 1, "dimensions": "2.0x2.0x0.85mm", "boundingBox": { "width": 2, "height": 0.85, "depth": 2 }, "position3d": { "x": -8, "y": 1.6, "z": -10 } }, { "id": "supervisor_max16162", "name": "Windowed Supply Supervisor", "pins": [ "VCC", "GND", "RESET_n", "MR_n", "SENSE" ], "type": "power", "partId": "92bd7cb3-72bb-4ddb-baf3-5c7831261354", "category": "electrical", "productName": "Analog Devices / Maxim MAX16162ANB+T", "purchaseUrl": "https://www.digikey.com/en/products/detail/analog-devices-inc-maxim-integrated/MAX16162ANB-T/1739981", "estimatedCost": 1.5, "quantity": 1, "dimensions": "2.9x1.6x1.1mm", "boundingBox": { "width": 2.9, "height": 1.1, "depth": 1.6 }, "position3d": { "x": -4, "y": 1.6, "z": -10 } }, { "id": "pcb_tamper_mesh", "name": "PCB-Routed Active Tamper Mesh", "pins": [ "LOOP_A", "LOOP_B" ], "type": "structural", "partId": "80910c3f-ec16-4260-bc1f-b1c49f135bf9", "category": "electrical", "productName": "PCB Serpentine Traces (L2/L3, 8-12 \u03a9 loop)", "purchaseUrl": "N/A \u2014 integrated into PCB layout", "estimatedCost": 0.0, "quantity": 1, "dimensions": "30x80mm (PCB layers L2/L3)", "boundingBox": { "width": 30, "height": 0.15, "depth": 80 }, "position3d": { "x": 0, "y": 0.6, "z": 0 } } ], "notes": [ "30x80mm PCB", "4-layer PCB", "matte black solder mask", "white silkscreen", "USB-A or M.2 Key-E", "tamper-evident design", "matte charcoal grey", "1mm teal stripe" ], "projectName": "Blade Agent HSM", "instructionSteps": [ { "id": "fabricate", "subSteps": [ { "id": "fabricate_1", "title": "Order or fabricate Main PCB Board (30x80mm, 4-layer, matte black solder mask, white silkscreen, 1mm teal stripe)", "partIds": [ "pcb_board_main" ] }, { "id": "fabricate_2", "title": "3D print USB-A Enclosure Top and Bottom Shells (Nylon SLS, matte charcoal grey)", "partIds": [ "usb_a_enclosure_top_shell", "usb_a_enclosure_bottom_shell", "usb_a_enclosure_top_shell_2", "usb_a_enclosure_bottom_shell_2" ] }, { "id": "fabricate_3", "title": "3D print PCB Retention Ribs (Nylon SLS, integrated into enclosure design)", "partIds": [ "pcb_retention_ribs_usb_a", "pcb_retention_ribs_usb_a_2" ] }, { "id": "fabricate_4", "title": "3D print Light Pipes for Power, Tier Indicator, and Alarm LEDs (Clear Resin SLA/DLP)", "partIds": [ "led_light_pipe_ld1", "led_light_pipe_ld2", "led_light_pipe_ld3", "led_light_pipe_ld1_2", "led_light_pipe_ld2_2", "led_light_pipe_ld3_2" ] }, { "id": "fabricate_5", "title": "3D print all component mounts (TPM, MCU, Tamper Sensor, TRNG, ESD, Crystals, Buzzer, USB-A) using PETG", "partIds": [ "tpm_slb9670_mount", "mcu_stm32l432kcu6_mount", "tamper_sensor_tsl2585_mount", "trng_atsha204a_mount", "esd_protection_tpd2e001_mount", "rtc_crystal_abs06_mount", "mcu_hse_crystal_abm3b_mount", "buzzer_piezo_mount", "connector_usb_a_castellated_mount" ] }, { "id": "fabricate_6", "title": "Clean and deburr all 3D printed parts; ensure fitment where applicable", "partIds": [ "usb_a_enclosure_top_shell", "usb_a_enclosure_bottom_shell", "pcb_retention_ribs_usb_a", "led_light_pipe_ld1", "led_light_pipe_ld2", "led_light_pipe_ld3", "tpm_slb9670_mount", "mcu_stm32l432kcu6_mount", "tamper_sensor_tsl2585_mount", "trng_atsha204a_mount", "esd_protection_tpd2e001_mount", "rtc_crystal_abs06_mount", "mcu_hse_crystal_abm3b_mount", "buzzer_piezo_mount", "connector_usb_a_castellated_mount", "usb_a_enclosure_top_shell_2", "usb_a_enclosure_bottom_shell_2", "pcb_retention_ribs_usb_a_2", "led_light_pipe_ld1_2", "led_light_pipe_ld2_2", "led_light_pipe_ld3_2" ] } ] }, { "id": "wire", "subSteps": [ { "id": "wire_1", "title": "Solder MCU (mcu_stm32l432kcu6) and LDO (ldo_tps73633dbv) to the PCB", "partIds": [ "mcu_stm32l432kcu6", "ldo_tps73633dbv", "pcb_board_main" ] }, { "id": "wire_2", "title": "Solder Secure Element (secure_element_se051), TPM 2.0 Module (tpm_slb9670), and Discrete TRNG (trng_atsha204a) to the PCB", "partIds": [ "secure_element_se051", "tpm_slb9670", "trng_atsha204a", "pcb_board_main" ] }, { "id": "wire_3", "title": "Solder Tamper Sensor Block (tamper_sensor_tsl2585) and USB ESD Protection (esd_protection_tpd2e001) to the PCB", "partIds": [ "tamper_sensor_tsl2585", "esd_protection_tpd2e001", "pcb_board_main" ] }, { "id": "wire_4", "title": "Solder RTC Crystal (rtc_crystal_abs06) and MCU HSE Crystal (mcu_hse_crystal_abm3b) to the PCB", "partIds": [ "rtc_crystal_abs06", "mcu_hse_crystal_abm3b", "pcb_board_main" ] }, { "id": "wire_5", "title": "Solder Power LED (led_power_green), Tier Indicator LED (led_tier_rgb), Alarm LED (led_alarm_red), and Piezo Buzzer (buzzer_piezo) to the PCB", "partIds": [ "led_power_green", "led_tier_rgb", "led_alarm_red", "buzzer_piezo", "pcb_board_main" ] }, { "id": "wire_6", "title": "Solder USB-A Castellated Pads (connector_usb_a_castellated) and M.2 Key-E Gold Fingers (connector_m2_key_e) to the PCB", "partIds": [ "connector_usb_a_castellated", "connector_m2_key_e", "pcb_board_main" ] }, { "id": "wire_7", "title": "Perform visual inspection of all solder joints and continuity checks for power/ground rails and critical data lines", "partIds": [ "pcb_board_main", "ldo_tps73633dbv", "mcu_stm32l432kcu6", "secure_element_se051", "tpm_slb9670", "tamper_sensor_tsl2585", "trng_atsha204a", "esd_protection_tpd2e001", "rtc_crystal_abs06", "mcu_hse_crystal_abm3b", "led_power_green", "led_tier_rgb", "led_alarm_red", "buzzer_piezo", "connector_usb_a_castellated", "connector_m2_key_e" ] } ] }, { "id": "bringup", "subSteps": [ { "id": "bringup_1", "title": "Apply Conformal Coating (Parylene-C) to the populated PCB, avoiding connectors and critical test points", "partIds": [ "conformal_coating", "pcb_board_main" ] }, { "id": "bringup_2", "title": "Connect USB-A or M.2 to a power source and verify 3.3V output from LDO using a multimeter", "partIds": [ "connector_usb_a_castellated", "connector_m2_key_e", "ldo_tps73633dbv" ] }, { "id": "bringup_3", "title": "Program MCU (mcu_stm32l432kcu6) firmware via SWD, verifying basic LED and buzzer functionality", "partIds": [ "mcu_stm32l432kcu6", "led_power_green", "led_tier_rgb", "led_alarm_red", "buzzer_piezo" ] }, { "id": "bringup_4", "title": "Test I\u00b2C communication with Secure Element (secure_element_se051), Tamper Sensor (tamper_sensor_tsl2585), and Discrete TRNG (trng_atsha204a)", "partIds": [ "mcu_stm32l432kcu6", "secure_element_se051", "tamper_sensor_tsl2585", "trng_atsha204a" ] }, { "id": "bringup_5", "title": "Test SPI communication with TPM 2.0 Module (tpm_slb9670) and verify TPM functionality", "partIds": [ "mcu_stm32l432kcu6", "tpm_slb9670" ] }, { "id": "bringup_6", "title": "Verify USB data path integrity through ESD protection (esd_protection_tpd2e001) with host device", "partIds": [ "connector_usb_a_castellated", "esd_protection_tpd2e001", "mcu_stm32l432kcu6" ] }, { "id": "bringup_7", "title": "Test tamper detection mesh and temperature sensing from tamper_sensor_tsl2585", "partIds": [ "mcu_stm32l432kcu6", "tamper_sensor_tsl2585" ] } ] }, { "id": "assemble", "subSteps": [ { "id": "assemble_1", "title": "Mount the Main PCB Board (pcb_board_main) into the lower enclosure shell with retention ribs", "partIds": [ "pcb_board_main", "usb_a_enclosure_bottom_shell", "pcb_retention_ribs_usb_a", "usb_a_enclosure_bottom_shell_2", "pcb_retention_ribs_usb_a_2" ] }, { "id": "assemble_2", "title": "Insert Light Pipes into their respective slots in the enclosure to align with LEDs", "partIds": [ "led_light_pipe_ld1", "led_light_pipe_ld2", "led_light_pipe_ld3", "led_power_green", "led_tier_rgb", "led_alarm_red", "usb_a_enclosure_top_shell", "led_light_pipe_ld1_2", "led_light_pipe_ld2_2", "led_light_pipe_ld3_2" ] }, { "id": "assemble_3", "title": "Secure optional Copper Heatspreader (optional_copper_heatspreader) to the PCB if using M.2 connector", "partIds": [ "optional_copper_heatspreader", "pcb_board_main", "secure_element_se051", "m2_brass_standoff_m2" ] }, { "id": "assemble_4", "title": "Carefully align and join the USB-A Enclosure Top Shell (usb_a_enclosure_top_shell) and Bottom Shell", "partIds": [ "usb_a_enclosure_top_shell", "usb_a_enclosure_bottom_shell", "usb_a_enclosure_top_shell_2", "usb_a_enclosure_bottom_shell_2" ] }, { "id": "assemble_5", "title": "Fasten the enclosure halves with M1.6 Self-Tapping Screws", "partIds": [ "m1_6_self_tapping_screw_1", "m1_6_self_tapping_screw_2", "usb_a_enclosure_top_shell", "usb_a_enclosure_bottom_shell" ] }, { "id": "assemble_6", "title": "Apply Tamper Evident Security Label (tamper_security_label_usb_a) over the enclosure seam", "partIds": [ "tamper_security_label_usb_a", "usb_a_enclosure_top_shell", "usb_a_enclosure_bottom_shell" ] }, { "id": "assemble_7", "title": "Perform final system test, verifying all functions and tamper detection with the enclosure closed", "partIds": [ "mcu_stm32l432kcu6", "secure_element_se051", "tpm_slb9670", "tamper_sensor_tsl2585", "trng_atsha204a", "buzzer_piezo", "led_power_green", "led_tier_rgb", "led_alarm_red" ] } ] } ], "projectDescription": "The Blade Agent HSM is a hardware security module", "instructionPreamble": { "tools": [ "Soldering iron with fine tip", "Solder (lead-free recommended)", "Flux pen/dispenser", "Desoldering braid/pump", "Tweezers (fine-tip)", "Magnifying lamp or microscope for SMD work", "Precision screwdriver set (for M1.6 screws)", "Multimeter with continuity test function", "Isopropyl alcohol and lint-free wipes for cleaning", "3D printer (SLS capable for Nylon, SLA/DLP capable for Clear Resin, FDM/PETG capable)", "Parylene C conformal coating application equipment (or brush for manual application)", "Hot air gun or reflow oven (for PCB assembly)" ], "assumptions": [ "Basic surface-mount device (SMD) soldering proficiency", "Familiarity with 3D printing processes and post-processing for various materials", "Understanding of basic electronics safety (ESD precautions, voltage handling)", "Access to necessary software and hardware for MCU firmware programming (e.g., STM32CubeProgrammer, SWD debugger)", "Availability of a stable 5V DC power source for initial testing" ] }, "electricalConnections": [ { "type": "data", "label": "USB Data Minus", "source": "mcu_stm32l432kcu6", "target": "connector_usb_a_castellated", "protocol": "usb-fs", "sourcePin": "USB D-", "targetPin": "D-" }, { "type": "data", "label": "USB Data Minus (M.2)", "source": "mcu_stm32l432kcu6", "target": "connector_m2_key_e", "protocol": "usb-fs", "sourcePin": "USB D-", "targetPin": "NC (M.2 Key-E does not use USB D- for USB-FS. This connection would only be relevant if M.2 supported USB-FS on this pin, which it doesn't usually for Key-E. Will map to J2.A20 for consistency per prompt.)" }, { "type": "data", "label": "USB Data Plus", "source": "mcu_stm32l432kcu6", "target": "connector_usb_a_castellated", "protocol": "usb-fs", "sourcePin": "USB D+", "targetPin": "D+" }, { "type": "data", "label": "USB Data Plus (M.2)", "source": "mcu_stm32l432kcu6", "target": "connector_m2_key_e", "protocol": "usb-fs", "sourcePin": "USB D+", "targetPin": "NC (M.2 Key-E does not use USB D+ for USB-FS. This connection would only be relevant if M.2 supported USB-FS on this pin, which it doesn't usually for Key-E. Will map to J2.A22 for consistency per prompt.)" }, { "type": "data", "label": "I2C SCL to SE051", "source": "mcu_stm32l432kcu6", "target": "secure_element_se051", "protocol": "i2c", "sourcePin": "I\u00b2C1 SCL", "targetPin": "I\u00b2C SCL" }, { "type": "data", "label": "I2C SDA to SE051", "source": "mcu_stm32l432kcu6", "target": "secure_element_se051", "protocol": "i2c", "sourcePin": "I\u00b2C1 SDA", "targetPin": "I\u00b2C SDA" }, { "type": "data", "label": "SPI NSS to TPM", "source": "mcu_stm32l432kcu6", "target": "tpm_slb9670", "protocol": "spi", "sourcePin": "SPI1 NSS", "targetPin": "SPI CS_n" }, { "type": "data", "label": "SPI SCK to TPM", "source": "mcu_stm32l432kcu6", "target": "tpm_slb9670", "protocol": "spi", "sourcePin": "SPI1 SCK", "targetPin": "SPI CLK" }, { "type": "data", "label": "SPI MISO from TPM", "source": "mcu_stm32l432kcu6", "target": "tpm_slb9670", "protocol": "spi", "sourcePin": "SPI1 MISO", "targetPin": "SPI MISO" }, { "type": "data", "label": "SPI MOSI to TPM", "source": "mcu_stm32l432kcu6", "target": "tpm_slb9670", "protocol": "spi", "sourcePin": "SPI1 MOSI", "targetPin": "SPI MOSI" }, { "type": "data", "label": "TPM Reset", "source": "mcu_stm32l432kcu6", "target": "tpm_slb9670", "protocol": "gpio", "sourcePin": "TPM_RST_n", "targetPin": "RST_n" }, { "type": "data", "label": "TPM Interrupt", "source": "tpm_slb9670", "target": "mcu_stm32l432kcu6", "protocol": "gpio", "sourcePin": "PIRQ_n", "targetPin": "TPM_PIRQ" }, { "type": "data", "label": "Power LED Drive", "source": "mcu_stm32l432kcu6", "target": "led_power_green", "protocol": "gpio", "sourcePin": "LED_PWR", "targetPin": "Anode" }, { "type": "data", "label": "Tier LED Red Drive", "source": "mcu_stm32l432kcu6", "target": "led_tier_rgb", "protocol": "gpio", "sourcePin": "LED_TIER_R", "targetPin": "Red Anode" }, { "type": "data", "label": "Tier LED Green Drive", "source": "mcu_stm32l432kcu6", "target": "led_tier_rgb", "protocol": "gpio", "sourcePin": "LED_TIER_G", "targetPin": "Green Anode" }, { "type": "data", "label": "Tier LED Blue Drive", "source": "mcu_stm32l432kcu6", "target": "led_tier_rgb", "protocol": "gpio", "sourcePin": "LED_TIER_B", "targetPin": "Blue Anode" }, { "type": "data", "label": "Alarm LED Drive", "source": "mcu_stm32l432kcu6", "target": "led_alarm_red", "protocol": "gpio", "sourcePin": "LED_ALARM", "targetPin": "Anode" }, { "type": "data", "label": "Buzzer PWM Drive", "source": "mcu_stm32l432kcu6", "target": "buzzer_piezo", "protocol": "pwm", "sourcePin": "BUZZER_PWM", "targetPin": "PWM Input" }, { "type": "data", "label": "RTC Crystal XTAL1", "source": "mcu_stm32l432kcu6", "target": "rtc_crystal_abs06", "protocol": "lse", "sourcePin": "NC (LSE_IN/LSE_OUT)", "targetPin": "XTAL1" }, { "type": "data", "label": "RTC Crystal XTAL2", "source": "mcu_stm32l432kcu6", "target": "rtc_crystal_abs06", "protocol": "lse", "sourcePin": "NC (LSE_IN/LSE_OUT)", "targetPin": "XTAL2" }, { "type": "data", "label": "HSE Crystal XTAL1", "source": "mcu_stm32l432kcu6", "target": "mcu_hse_crystal_abm3b", "protocol": "hse", "sourcePin": "NC (HSE_IN/HSE_OUT)", "targetPin": "XTAL1" }, { "type": "data", "label": "HSE Crystal XTAL2", "source": "mcu_stm32l432kcu6", "target": "mcu_hse_crystal_abm3b", "protocol": "hse", "sourcePin": "NC (HSE_IN/HSE_OUT)", "targetPin": "XTAL2" }, { "type": "power", "label": "VBUS 5V to LDO VIN", "source": "connector_usb_a_castellated", "target": "ldo_tps73633dbv", "current": "250mA", "voltage": "5V" }, { "type": "data", "label": "USB D- to ESD", "source": "connector_usb_a_castellated", "target": "esd_protection_tpd2e001", "protocol": "usb-fs", "sourcePin": "D-", "targetPin": "USB D-" }, { "type": "data", "label": "USB D+ to ESD", "source": "connector_usb_a_castellated", "target": "esd_protection_tpd2e001", "protocol": "usb-fs", "sourcePin": "D+", "targetPin": "USB D+" }, { "type": "data", "label": "ESD protected USB D- to MCU", "source": "esd_protection_tpd2e001", "target": "mcu_stm32l432kcu6", "protocol": "usb-fs", "sourcePin": "USB D-", "targetPin": "USB D-" }, { "type": "data", "label": "ESD protected USB D+ to MCU", "source": "esd_protection_tpd2e001", "target": "mcu_stm32l432kcu6", "protocol": "usb-fs", "sourcePin": "USB D+", "targetPin": "USB D+" }, { "type": "power", "label": "3.3V to MCU", "source": "ldo_tps73633dbv", "target": "mcu_stm32l432kcu6", "current": "400mA", "voltage": "3.3V" }, { "type": "power", "label": "3.3V to SE051", "source": "ldo_tps73633dbv", "target": "secure_element_se051", "current": "400mA", "voltage": "3.3V" }, { "type": "power", "label": "3.3V to TPM", "source": "ldo_tps73633dbv", "target": "tpm_slb9670", "current": "400mA", "voltage": "3.3V" }, { "type": "power", "label": "3.3V to TRNG", "source": "ldo_tps73633dbv", "target": "trng_atsha204a", "current": "400mA", "voltage": "3.3V" }, { "type": "data", "label": "SE051 ENA tied to 3.3V", "source": "secure_element_se051", "target": "ldo_tps73633dbv", "protocol": "gpio", "sourcePin": "ENA", "targetPin": "VOUT" }, { "type": "data", "label": "I2C SCL to TRNG", "source": "mcu_stm32l432kcu6", "target": "trng_atsha204a", "protocol": "i2c", "sourcePin": "I\u00b2C1 SCL", "targetPin": "I\u00b2C SCL" }, { "type": "data", "label": "I2C SDA to TRNG", "source": "mcu_stm32l432kcu6", "target": "trng_atsha204a", "protocol": "i2c", "sourcePin": "I\u00b2C1 SDA", "targetPin": "I\u00b2C SDA" }, { "type": "data", "label": "M.2 SPI CLK to MCU", "source": "connector_m2_key_e", "target": "mcu_stm32l432kcu6", "protocol": "spi", "sourcePin": "SPI_CLK", "targetPin": "SPI1 SCK" }, { "type": "data", "label": "M.2 SPI MOSI to MCU", "source": "connector_m2_key_e", "target": "mcu_stm32l432kcu6", "protocol": "spi", "sourcePin": "SPI_MOSI", "targetPin": "SPI1 MOSI" }, { "type": "data", "label": "MCU SPI MISO to M.2", "source": "mcu_stm32l432kcu6", "target": "connector_m2_key_e", "protocol": "spi", "sourcePin": "SPI1 MISO", "targetPin": "SPI_MISO" }, { "type": "data", "label": "M.2 SPI CS_n to MCU", "source": "connector_m2_key_e", "target": "mcu_stm32l432kcu6", "protocol": "spi", "sourcePin": "SPI_CS_n", "targetPin": "SPI1 NSS" }, { "type": "data", "label": "M.2 PERST_n (MCU Reset)", "source": "connector_m2_key_e", "target": "mcu_stm32l432kcu6", "protocol": "gpio", "sourcePin": "PERST_n", "targetPin": "NC (reset to MCU)" }, { "type": "data", "label": "MCU WAKE_n to M.2", "source": "mcu_stm32l432kcu6", "target": "connector_m2_key_e", "protocol": "gpio", "sourcePin": "NC (WAKE_n)", "targetPin": "WAKE_n" }, { "type": "power", "label": "M.2 3.3V supply (when LDO is unstuffed)", "source": "connector_m2_key_e", "target": "mcu_stm32l432kcu6", "current": "250mA", "voltage": "3.3V" }, { "type": "power", "label": "M.2 3.3V to SE051 (when LDO is unstuffed)", "source": "connector_m2_key_e", "target": "secure_element_se051", "current": "250mA", "voltage": "3.3V" }, { "type": "power", "label": "M.2 3.3V to TPM (when LDO is unstuffed)", "source": "connector_m2_key_e", "target": "tpm_slb9670", "current": "250mA", "voltage": "3.3V" }, { "type": "power", "label": "M.2 3.3V to TRNG (when LDO is unstuffed)", "source": "connector_m2_key_e", "target": "trng_atsha204a", "current": "250mA", "voltage": "3.3V" }, { "type": "power", "label": "Power 5V from USB", "source": "connector_usb_a_castellated", "target": "ldo_tps73633dbv", "current": "250mA", "voltage": "5V" }, { "type": "power", "label": "LDO EN tied to VOUT for always-on", "source": "ldo_tps73633dbv", "target": "ldo_tps73633dbv", "current": "400mA", "voltage": "3.3V", "sourcePin": "VOUT", "targetPin": "EN" }, { "type": "data", "label": "I2C SCL to TMP117", "source": "mcu_stm32l432kcu6", "target": "temp_sensor_tmp117", "protocol": "i2c", "sourcePin": "I\u00b2C1 SCL (PB6)", "targetPin": "SCL" }, { "type": "data", "label": "I2C SDA to TMP117", "source": "mcu_stm32l432kcu6", "target": "temp_sensor_tmp117", "protocol": "i2c", "sourcePin": "I\u00b2C1 SDA (PB7)", "targetPin": "SDA" }, { "type": "data", "label": "TMP117 ALERT to MCU", "source": "temp_sensor_tmp117", "target": "mcu_stm32l432kcu6", "protocol": "gpio", "sourcePin": "ALERT", "targetPin": "PA3 (TEMP_ALERT)" }, { "type": "power", "label": "3.3V to TMP117", "source": "ldo_tps73633dbv", "target": "temp_sensor_tmp117", "voltage": "3.3V", "current": "10mA" }, { "type": "power", "label": "3.3V SENSE to MAX16162", "source": "ldo_tps73633dbv", "target": "supervisor_max16162", "voltage": "3.3V", "current": "1mA" }, { "type": "data", "label": "MAX16162 RESET_n to MCU NRST", "source": "supervisor_max16162", "target": "mcu_stm32l432kcu6", "protocol": "gpio", "sourcePin": "RESET_n", "targetPin": "NRST" }, { "type": "data", "label": "Tamper Mesh Loop A (out)", "source": "mcu_stm32l432kcu6", "target": "pcb_tamper_mesh", "protocol": "analog", "sourcePin": "PA0 (MESH_LOOP_A)", "targetPin": "LOOP_A" }, { "type": "data", "label": "Tamper Mesh Loop B (return)", "source": "pcb_tamper_mesh", "target": "mcu_stm32l432kcu6", "protocol": "analog", "sourcePin": "LOOP_B", "targetPin": "PA1 (MESH_LOOP_B)" } ], "mechanicalConnections": [ { "label": "M1.6 self-tap screws", "source": "usb_a_enclosure_top_shell", "target": "usb_a_enclosure_bottom_shell" }, { "label": "fastens", "source": "m1_6_self_tapping_screw_1", "target": "usb_a_enclosure_top_shell" }, { "label": "fastens", "source": "m1_6_self_tapping_screw_1", "target": "usb_a_enclosure_bottom_shell" }, { "label": "fastens", "source": "m1_6_self_tapping_screw_2", "target": "usb_a_enclosure_top_shell" }, { "label": "fastens", "source": "m1_6_self_tapping_screw_2", "target": "usb_a_enclosure_bottom_shell" }, { "label": "adheres to seam", "source": "tamper_security_label_usb_a", "target": "usb_a_enclosure_top_shell" }, { "label": "adheres to seam", "source": "tamper_security_label_usb_a", "target": "usb_a_enclosure_bottom_shell" }, { "label": "forms ribs with", "source": "usb_a_enclosure_top_shell", "target": "pcb_retention_ribs_usb_a" }, { "label": "forms ribs with", "source": "usb_a_enclosure_bottom_shell", "target": "pcb_retention_ribs_usb_a" }, { "label": "holds", "source": "pcb_retention_ribs_usb_a", "target": "pcb_board_main" }, { "label": "supports", "source": "m2_brass_standoff_m2", "target": "pcb_board_main" }, { "label": "bonded to", "source": "optional_copper_heatspreader", "target": "pcb_board_main" }, { "label": "coats", "source": "conformal_coating", "target": "pcb_board_main" }, { "label": "mount", "source": "led_light_pipe_ld1", "target": "led_power_green" }, { "label": "mount", "source": "led_light_pipe_ld2", "target": "led_tier_rgb" }, { "label": "mount", "source": "led_light_pipe_ld3", "target": "led_alarm_red" }, { "label": "mount", "source": "m2_brass_standoff_m2", "target": "connector_m2_key_e" }, { "label": "mount", "source": "optional_copper_heatspreader", "target": "secure_element_se051" }, { "source": "usb_a_enclosure_top_shell_2", "target": "usb_a_enclosure_bottom_shell_2", "label": "M1.6 self-tap screws" }, { "source": "usb_a_enclosure_top_shell_2", "target": "pcb_retention_ribs_usb_a_2", "label": "forms ribs with" }, { "source": "usb_a_enclosure_bottom_shell_2", "target": "pcb_retention_ribs_usb_a_2", "label": "forms ribs with" }, { "source": "pcb_retention_ribs_usb_a_2", "target": "pcb_board_main", "label": "holds" }, { "source": "led_light_pipe_ld1_2", "target": "led_power_green", "label": "mount" }, { "source": "led_light_pipe_ld2_2", "target": "led_tier_rgb", "label": "mount" }, { "source": "led_light_pipe_ld3_2", "target": "led_alarm_red", "label": "mount" } ], "projectId": "72389643-b040-40b6-bfb0-29cf0505cb36" }