Project Start Assistance

C

cevdetboz

When will the ACU will be renewed?

flux

I can’t see your account’s ACU renewal date. Check the billing or usage section in your Flux account settings for your allowance reset date; if it isn’t shown, Flux support can confirm it, including how your recent upgrade affects renewal.
No PCB changes were made this turn. Routing execution stopped because your ACUs ran out.
C

cevdetboz

Okay what you are waiting to continue to the design?

flux

I’m waiting on available ACUs, not another design approval. You already authorized routing all non-USB nets while leaving USB untouched.
The next step is to verify the corrected 3V3_HOST_RAW vias and connectivity, remove redundant copper if needed, then continue routing the remaining non-USB nets and run DRC. USB routing remains blocked by the reported U3 pad-coordinate inconsistency.
I made no changes this turn. Execution stopped because your ACUs ran out; if your account now shows an available balance, Flux support can investigate why execution is still blocked.
C

cevdetboz

When will i have new ACUs?

flux

I can’t see your account’s ACU reset date, and the current editor screen doesn’t show it. Check your Flux account’s billing/usage page for the renewal date; if no date appears, contact Flux support to confirm when your upgraded plan’s allowance renews.
No PCB changes were made this turn. Design execution remains stopped because your ACUs ran out.

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Project Specification
Project Overview
USB-only custom mini-PCIe add-in card with a USB2422 hub, two SEC1210 dual-SAM controllers, and exactly two MUP-C746-1 dual-SAM connectors (four SAM positions total).
Fixed Architecture
  • The board is the male add-in card. J1 represents 52 plated card-edge contacts only; no mini-PCIe socket/receptacle is fitted or purchased.
  • Host 3.3 V enters on custom edge pins 2, 39, 41, and 52 and powers the USB2422 hub through the protected 3V3_HUB rail.
  • Host 5 V enters on repurposed custom edge pins 6 and 28 and powers both SEC1210 VDD5 inputs through the protected 5V_SEC rail.
  • USB upstream uses edge pins 36 (D−) and 38 (D+).
  • No on-card voltage conversion is used.
  • Each SEC1210 VDD33 is an internal output connected only to its required 1 uF capacitor (U2/C14 and U3/C19).
Safety Warning
DANGER — CUSTOM NON-STANDARD MINI-PCIe PINOUT. DO NOT INSERT THIS CARD INTO A STANDARD MINI-PCIe OR QUECTEL HOST SLOT. Pins 6 and 28 carry custom host 5 V.
Schematic Organization
  1. IO J1 Hub and Card Edge — J1, input protection/filtering, USB2422 U1, clock/configuration/decoupling, and USB ESD/filter components.
  2. DIGITAL U2 SAM1 and SAM2 — SEC1210 U2, MUP-C746-1 J2, SAM1/SAM2 protection, series resistors, reset support, and decoupling.
  3. DIGITAL U3 SAM3 and SAM4 — SEC1210 U3, MUP-C746-1 J3, SAM3/SAM4 protection, series resistors, reset support, and decoupling.
Pending Physical Work
J1 is intentionally schematic-only and excluded from BOM, PCB, and pick-and-place. Authoritative mini-PCIe card-edge finger geometry, board outline, key/notch, contact face, and datum relationships remain pending a later mechanical/layout task; no provisional geometry has been invented in this schematic correction.

  • Project Overview

  • Fixed Architecture

  • Safety Warning

  • Schematic Organization

  • Pending Physical Work