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  \author{
    \textcopyright\ Benoit~\textsc{Dubois}
    \thanks{benoit.dubois@femto-engineering.fr}
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  %% Titre %%
  
  ewcommand{\titre}{STM32 motherboard}
  
  %% Sous-titre %%
  
  ewcommand{\soustitre}{Starting guide}
  
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  %-----------------------------------------------------------------------
  
  \begin{document}
  
  \maketitle
  \pagenumbering{roman}
  
  \begin{versionhistory}
    \vhEntry{1.0}{2021, january 10}{BD}{First release}
  \end{versionhistory}
  
  \tableofcontents
  \pagebreak
  
  \pagenumbering{arabic}
  
  
  \chapter{Hardware}
  \section{Overview}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0.jpg} 
   \caption{Motherboard for STM32F407G}
   \label{fig:stm32motherboard}
  \end{figure}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{stm32f407.jpg} 
   \caption{STM32F407G board}
   \label{fig:stm32disc}
  \end{figure}
  This report cover use of STM32 motherboard v0.2.0.
  In the document, the term ``STM32Disc'' refer to the STM32 Discovery board (Fig.\ref{fig:stm32disc}) and the term ``STM32Mother'' refer to the STM32 motherboard (Fig.\ref{fig:stm32motherboard}).
  
  \begin{itemize}
   \item Motherboard for STM32Disc (reference STM32F407G-DISCxx)
   \item Euroboard standard format: rack plugable
   \item Powered from standard 5V/15V Euroboard standard or from external 5V/15V power supply (section~\ref{sec:power})
  \end{itemize}
  
  \section{I/O}
  
  \subsection{SPI PMOD}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0_spi.jpg} 
   \caption{SPI PMOD interface}
   \label{fig:spi_intf}
  \end{figure}
  Three SPI bus are availlables from board.
  Find pin name in use for each bus in table~\ref{tab:spipinname}.
  \begin{table}[htbp]
    \begin{center}
      \begin{tabular}{|c|c|c|c|c|c|c|}
        \hline
        Bus & SCK & MISO & MOSI & CS1 & CS2 & CS3 \\
        \hline
        SPI1 & PB3 & PB4 & PB5 & PE0 & PE1 & PD7 \\
        SPI2 & PB13 & PB14 & PB15 & PD8 & PD9 & PD10 \\
        SPI3 & PC10 & PC11 & PC12 & PD0 & PA14 & PA15 \\
        \hline
      \end{tabular}
      \caption{OTA transistor sizes before and after DfR 
      \label{tab:spipinname}}
    \end{center}
  \end{table}
  
  \subsection{I2C PMOD}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0_i2c.jpg} 
   \caption{I2C PMOD interface}
   \label{fig:i2c_intf}
  \end{figure}
  
  \subsection{Integrated ADC and DAC}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0_adc_dac.jpg} 
   \caption{ADC and DAC interface}
   \label{fig:adc_dac_intf}
  \end{figure}
  
  \subsection{VNH5019}
  The board integrate an interface to a VNH5019 shield (Fig.\ref{fig:vnh5019_intf}).
  The VNH5019 is a H-bridge motor driver handled by PWM.\\
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0_vnh5019.jpg} 
   \caption{VNH5019 interface}
   \label{fig:vnh5019_intf}
  \end{figure}
  
  \warningsymbol You need to select timer 4 and channel 1 or 2 only (see Fig.\ref{fig:timer4}) in your software development if you want to use the VNH5019 interface.
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{timer4.png} 
   \caption{VNH5019 interface}
   \label{fig:timer4}
  \end{figure}
  
  \subsection{GPIO}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0_gpio.jpg} 
   \caption{GPIO interface}
   \label{fig:gpio_intf}
  \end{figure}
  
  \subsection{U(S)ART}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0_usart.jpg} 
   \caption{U(S)ART interface}
   \label{fig:usart_intf}
  \end{figure}
  USART2 RX: A3
  USART2 TX: A2
  
  UART4 RX: A1
  UART4 TX: A0
  NOTE: A0 also connects to the user switch.
  To use UART4 you should set MICROPY\_HW\_HAS\_SWITCH to 0 (if you build micropython), and also remove SB20 (on the back of the STM32 board near the USER switch).
  
  \subsection{NRST}
  NRST pin is connected to Reset button of the STM32Disc.
  This pin can be used to deport a reset button on the front panel of the STM32Mother for example.
  
  \section{Power}\label{sec:power}
  \begin{figure}[htp]
   \centering
   \includegraphics[width=0.5\linewidth]{motherboard_v0-2-0_powersupply.jpg} 
   \caption{Power supply}
   \label{fig:power_intf}
  \end{figure}
  \subsection{Supply from DIN 5V}
  Set the jumper of connector P11 (surrounded in red on fig.~\ref{fig:power_intf})
  
  \subsection{Supply from DIN 15V}
  Set the jumper of connector P11 (surrounded in red on fig.~\ref{fig:power_intf})
  To use a power supply of 15~V, you need to 
  
  
  \subsection{Supply from external 5V}
  \subsection{Supply from external 15V}
  
  
  
  ewpage
  \addcontentsline{toc}{chapter}{Annexes}
  
  \begin{appendix}
  \chapter{Schematic}
  \includepdf[pages=-]{stm32discovery_mboard_schematic_v0_2.pdf}
  
  \chapter{Layout}
  \includepdf[pages=-]{figures/pcb_top_v0_2.pdf}
  \includepdf[pages=-]{figures/pcb_bottom_v0_2.pdf}
  \end{appendix}
  
  
  \end{document}