diff --git a/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/FPGA-Neural-V2-Datasheet-EN.pdf b/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/FPGA-Neural-V2-Datasheet-EN.pdf index 8523d13..01684a7 100644 Binary files a/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/FPGA-Neural-V2-Datasheet-EN.pdf and b/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/FPGA-Neural-V2-Datasheet-EN.pdf differ diff --git a/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/chapters/10-hardware.tex b/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/chapters/10-hardware.tex index 0748b84..aa56b71 100644 --- a/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/chapters/10-hardware.tex +++ b/hardware/v2/docs/datasheet/files/docs/datasheet/v2-en/chapters/10-hardware.tex @@ -371,17 +371,19 @@ pull-up (inside the required 1--10\,k$\Omega$ range). disconnected from the FPGA's own configuration engine --- auto-boot from flash would silently fail. \textbf{Fix}: make all eight labels identical text. -\item \textbf{SDRAM CAS\#/WE\# appear swapped}: schematic shows - CAS\#=F9, WE\#=F7; the real, independently-verified assignment - (this chapter, Alliance Memory datasheet-derived) is - \textbf{CAS\#=F7, WE\#=F9}. \end{enumerate} +\begin{fnnote}[Checked and cleared] +SDRAM CAS\#/WE\#: user confirmed CAS\#=F7, WE\#=F9 in the real +schematic --- matches this chapter exactly. The apparent swap in the +original review was a misread of the schematic image, not a real +error. +\end{fnnote} + \subsection{Open items (not resolvable from the schematic image alone)} \begin{itemize} \item \code{TLV62568}'s EN pin: is \code{R3}=499\,k$\Omega$ actually on EN, and to which rail? -\item \code{TLV73325}'s EN pin: connected to anything? \item A \code{+1V1} label appears near the VCCAUX ferrite (L2)/its decoupling (C8/C9) --- VCCAUX must remain 2.5\,V after the ferrite (a ferrite bead filters, it does not change DC voltage); @@ -442,9 +444,13 @@ apply --- each resistor can go to its own correct rail. U5 confirms the 16\,MHz oscillator, previously missing from the capture, is now present. -\subsection{Still open} -TLV73325's EN pin has no dedicated resistor in this BOM --- presumably -a direct wire to +3.3\,V (always-enabled); not yet confirmed. +\subsection{Resolved} +TLV73325's EN pin: no dedicated resistor needed --- direct wire to ++3.3\,V (VIN), always-enabled. Unlike TLV62568's own soft-start +R3=499\,k$\Omega$ pull-up, a plain LDO has no equivalent timing +requirement (per TI's own datasheet: ``active high, do not leave +floating,'' no sequencing note); no dynamic enable/disable control +exists elsewhere in this design. \section{PCB module form factor (reserved)} \label{sec:pcb-module}