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Question about PIC16F18345 Evaluation Board
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<blockquote data-quote="Serkan Kaya" data-source="post: 740013"><p>I am trying to understand the schematic of <strong>MPLAB® XPRESS PIC16F18345 EVALUATION BOARD</strong>. However, I cannot understand the following parts.</p><p></p><ol> <li data-xf-list-type="ol">Why there are 2 microcontrollers (PIC16F18 and PIC16F14) on this board. When we connect the USB cable, which of these microcontrollers do we load the programme to.</li> <li data-xf-list-type="ol">Where does the 20-pin integrated circuit, called the <strong>PIC programming adapter</strong> in the schematic, appear in the real-life picture of this board?</li> <li data-xf-list-type="ol">What is the name of the component labelled <strong>TH1</strong> in the schematic?</li> <li data-xf-list-type="ol">There is a symbol above the text <strong>DISCONNECT POWER</strong>, What is the symbol?</li> <li data-xf-list-type="ol">In the schematic, there is a symbol on the cable connected to <strong>the 11th and 12th pins</strong> of the mcu named <strong>PIC16F1454</strong>, what is the name of this symbol? What is it used to explain?</li> <li data-xf-list-type="ol">And finally, what is the purpose of the circuit to which the <strong>PIC16F1454 mcu</strong> is connected, why these structures are placed around this MCU.</li> </ol><p></p><p>I am trying to analyse an MCU circuit for the first time, I don't know where to start. Thank you in advance for your help.</p><p></p><p><a href="https://i.sstatic.net/lG0QKJW9.png"><img src="https://i.sstatic.net/lG0QKJW9.png" alt="enter image description here" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>This image is taken from page 27 of this document: <a href="https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/UserGuides/Microchip+8bit+mcu+PIC+Xpress+Dev+Board+PIC16F18855+MPLAB+Xpress+Eval+Board+Users+Guide+50002479B.pdf">https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/UserGuides/Microchip+8bit+mcu+PIC+Xpress+Dev+Board+PIC16F18855+MPLAB+Xpress+Eval+Board+Users+Guide+50002479B.pdf</a></p><p></p><p><a href="https://i.sstatic.net/VC8pxnlt.png"><img src="https://i.sstatic.net/VC8pxnlt.png" alt="enter image description here" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p></p><p>The picture is taken from this link: <a href="https://evelta.com/dm164142-mplab-xpress-pic16f18877-evaluation-board/">https://evelta.com/dm164142-mplab-xpress-pic16f18877-evaluation-board/</a></p></blockquote><p></p>
[QUOTE="Serkan Kaya, post: 740013"] I am trying to understand the schematic of [B]MPLAB® XPRESS PIC16F18345 EVALUATION BOARD[/B]. However, I cannot understand the following parts. [LIST=1] [*]Why there are 2 microcontrollers (PIC16F18 and PIC16F14) on this board. When we connect the USB cable, which of these microcontrollers do we load the programme to. [*]Where does the 20-pin integrated circuit, called the [B]PIC programming adapter[/B] in the schematic, appear in the real-life picture of this board? [*]What is the name of the component labelled [B]TH1[/B] in the schematic? [*]There is a symbol above the text [B]DISCONNECT POWER[/B], What is the symbol? [*]In the schematic, there is a symbol on the cable connected to [B]the 11th and 12th pins[/B] of the mcu named [B]PIC16F1454[/B], what is the name of this symbol? What is it used to explain? [*]And finally, what is the purpose of the circuit to which the [B]PIC16F1454 mcu[/B] is connected, why these structures are placed around this MCU. [/LIST] I am trying to analyse an MCU circuit for the first time, I don't know where to start. Thank you in advance for your help. [URL='https://i.sstatic.net/lG0QKJW9.png'][IMG alt="enter image description here"]https://i.sstatic.net/lG0QKJW9.png[/IMG][/URL] This image is taken from page 27 of this document: [URL]https://ww1.microchip.com/downloads/aemDocuments/documents/OTH/ProductDocuments/UserGuides/Microchip+8bit+mcu+PIC+Xpress+Dev+Board+PIC16F18855+MPLAB+Xpress+Eval+Board+Users+Guide+50002479B.pdf[/URL] [URL='https://i.sstatic.net/VC8pxnlt.png'][IMG alt="enter image description here"]https://i.sstatic.net/VC8pxnlt.png[/IMG][/URL] The picture is taken from this link: [URL]https://evelta.com/dm164142-mplab-xpress-pic16f18877-evaluation-board/[/URL] [/QUOTE]
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