finished Latching capability

README.md

@@ -27,7 +27,7 @@ TeX source file for ESF and scrutineering
 	- [X] (DC) Vehicle Side Voltage Detection
 	- [X] TSAL driver board and DC-link voltage detection
 	- [X] Vehicle TS Schematic voltage measurement, AIR and precharge relay state detection, red and green TSAL circuitry.
-	- [ ] Provide latching capability explanation/simulation.
+	- [X] Provide latching capability explanation/simulation.
 	- [ ] Provide an explanation of SCS signal implementation, failure mode and effect analysis per T11.9.2
 - [X] TS Discharge Circuit
 	- [X] Schematic

TSAL-schematic/TSAL-schematic.tex

@@ -60,8 +60,44 @@
 		%\node[opacity=0, fill opacity=0, text opacity=0, fit=(AMS-IO), inner sep=0pt](linkcover) {\hyperlink{ams-io}{\phantom{AMS Master - Input/Output}}};
 	\end{circuitikz}
 \end{center}
+\subsection{IMD Latching}
+\begin{itemize}    	
+	\item The \texttt{IMD\_OK} signal is pulled high approximately 1.5 seconds after startup for the \href{https://www.bender.de/fileadmin/content/Products/d/e/IR155-32xx-V004_D00115_D_XXEN.pdf}{IR155-3204 IMD}.
+	\item Therefore the Power-on Reset (PoR) lasts approximately 2 seconds.
+
+\end{itemize} 
+\subsection{AMS Latching}
+\begin{itemize}	
+	\item The \texttt{AMS\_OK} signal is pulled low until the following conditions are met:
+	\begin{itemize}
+		\item The AMS Master communicates with all six AMS Slaves, each providing valid voltage and temperature measurements.
+		\item The AMS Master mommunicates with the shunt sensor (IVT-S-300-U3-I-CAN2-12/24)
+	\end{itemize}
+\end{itemize}
+
 
 \section{SCS signal implementation}
+\begin{center}
+	\begin{circuitikz}[]
+		% CAN
+		\draw[purple] (0,2) -- ++(1,0);
+		\draw (1,2) node[right]{$0.13mm^2$ unshielded - RS PRO 8724476, 2A};
+
+		% IMD
+		\node[draw, minimum width=1.5cm, minimum height=1cm] (AMS) at (0,0) {AMS Master};
+		
+		% AMS Master
+		\node[draw, minimum width=1.5cm, minimum height=1cm] (DB) at (8,0) {{Dashboard}};
+		\node[draw, dashed, fit=(AMS), inner sep=0.5cm, label=above:Accumulator] {};
+		% Arrows
+		\draw[->, thick] (AMS.east) -- (DB.west) node[midway, above] {IMD\_OK} node[midway, below] {AMS\_OK};
+	\end{circuitikz}
+\end{center}
+\paragraph{}
+Both signals are transmitted every 50 ms over the CAN bus. If the Dashboard does not receive a CAN message from the AMS Master within 150 ms, 
+it will trigger a fault condition. In response to this fault, the following LEDs will be activated: 
+the \texttt{AMS Error} LED will be turned on, the \texttt{IMD Error} LED will be turned on, and the \texttt{TS Off} LED will remain off.
+
 
 \includepdf[pages={1}, landscape=true]{./Documents/TS-overview.pdf}
 \hypertarget{ams-io}{}