SIM card related Projects » SIMtrace

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<chapter id="chapter_hw">

    <title>Hardware Details</title>

    <section id="hw_design">

        <title>HW Design</title>

        <para>The Free Software KiCAD EDA was used to design the

        hardware and can be used to look at the schematics and the

        PCB routing. The hardware design can be found in the git

        repository of the SIMtrace sources. For the v1.0 hardware

        you will have to look at the v1.0_production branch.

        </para>

    </section>

    <section id="pcb_populated">

        <title>Populated PCB</title>

        <para>The version v1.0p is the first production that had an

        automatic SMT run. Due some production issues the labeling of

        components didn't make it to the PCB but can be found in this

        manual. The difference between the v1.0 and v1.0p hardware is

        in the footprint of some components to utilize the existing

        stock of the factory. This was mostly done for the LED and the

        shottky diodes.</para>

        <figure><title>SIMtrace v1.0 PCB</title>

        <mediaobject>

          <imageobject>

            <imagedata fileref="images/simtrace_hw.jpg" width="15cm"/>

          </imageobject>

          <textobject><phrase>SIMtrace v1.0 PCB</phrase></textobject>

        </mediaobject>

        </figure>

    </section>

    <section id="pcb_surface">

        <title>PCB Surface</title>

        <para>

        <figure><title>SIMtrace v1.0 Surface</title>

        <mediaobjectco>

          <imageobjectco>

            <areaspec id="surface"  units="calspair">

                <area linkends="link_usb" coords="8800,0 8800,6100" id="usb"/>

                <area linkends="link_serial" coords="8800,7000 8800,8000" id="serial"/>

                <area linkends="link_debug" coords="8800,9000 8800,9500" id="debug"/>

                <area linkends="link_jtag" coords="5000,8900 5000,9000" id="jtag"/>

                <area linkends="link_bt1" coords="8900,0 9100,3500" id="bt1"/>

                <area linkends="link_ffc" coords="500,3000 700,9000" id="ffc"/>

                <area linkends="link_sim" coords="500,500 700,2000" id="sim"/>

                <area linkends="link_reset" coords="200,9000 500,9000" id="reset"/>

                <area linkends="link_bootloader" coords="1700,9000 1900,9000" id="bootloader"/>

                <area linkends="link_test" coords="6500,8700 7000,8900" id="test"/>

                <area linkends="link_erase" coords="7100,8700 7600,8900" id="erase"/>

            </areaspec>

            <imageobject>

                <imagedata fileref="images/simtrace_surface.png" width="15cm" />

            </imageobject>

            <calloutlist>

                <callout arearefs="usb" id="link_usb">

                    <para>USB: USB mini-B connector. The main connector. The

                    host software communicates (sniffing,...) through USB with

                    the board. It can also be used to flash the micro-controller

                    (using DFU).</para>

                </callout>

                <callout arearefs="serial" id="link_serial">

                    <para>serial: 2.5 mm jack serial cable, as used by osmocomBB

                    port used to debug the device (printf goes there).</para>

                </callout>

                <callout arearefs="debug" id="link_debug">

                    <para>debug (P3): same as serial, but using the FTDI

                    serial cable. It is recommended to cut the voltage wire of

                    the 6pin FTDI connector before plugging the cable into the

                    simtrace.

                    </para>

                </callout>

                <callout arearefs="jtag" id="link_jtag">

                    <para>jtag (P1): JTAG 20 pin connector to do hardware

                    assisted debugging.</para>

                </callout>

                <callout arearefs="bt1" id="link_bt1">

                    <para>BT1: battery connector (4.5-6V DC). normally the

                    USB provides power, but the battery port can be used

                    for autonomous use of SIMtrace. The sniffing can be saved

                    in the flash (U1).</para>

                </callout>

                <callout arearefs="ffc" id="link_ffc">

                    <para>FFC_SIM (P3): to connect the flat flexible cable with

                    SIM end for the phone.</para>

                </callout>

                <callout arearefs="sim" id="link_sim">

                    <para>SIM (P4): put your SIM in there (instead of in the

                    phone)</para>

                </callout>

                <callout arearefs="reset" id="link_reset">

                    <para>reset (SW1): to reset the board (not erasing the

                    firmware). If your are too lazy to unplug and re-plug

                    the USB.</para>

                </callout>

                <callout arearefs="bootloader" id="link_bootloader">

                    <para>bootloader (SW2): used to start the bootloader so

                    to flash the device using DFU. press when plugging in

                    the USB.</para>

                </callout>

                <callout arearefs="test" id="link_test">

                    <para>test (JP1): short circuit using a jumper to flash

                    using SAM-BA.</para>

                </callout>

                <callout arearefs="erase" id="link_erase">

                    <para>erase (JP2): short circuit using a jumper to erase

                    completely erase the firmware.</para>

                </callout>

            </calloutlist>

            </imageobjectco>

        </mediaobjectco>

        </figure>

        </para>

    </section>

</chapter>