Merge branch 'master' of github.com:tompi/cheapino
Thomas Haukland
@@ -27,7 +27,7 @@ If it doesnt, try to short the circuit "before" the diode. If this works the dio
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## Entire rows or entire columns are not working
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This could be caused by several things:
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This could be caused by several things. Read up below, and view [the interactive schematic](https://tompi.github.io/cheapino/doc/troubleshooting/routing.html) for easy troubleshooting.
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### Bad connection on MCU
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13
doc/troubleshooting/color-mapping.txt
Normal file
@@ -0,0 +1,13 @@
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#e519e4 Left row 1
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#a6cee3 Left row 2
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#2078b4 Left row 3
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#33a02c Right row 1
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#fb9a99 Right row 2
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#e31a1c Right row 3
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#b2df8a Right row 4
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#fdbf6f Left column 1
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#cab2d6 Left column 2
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#b15928 Left column 3
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#ff7f00 Right column 1
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#6a3c9a Right column 2
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#ffff99 Right column 3
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BIN
doc/troubleshooting/darken.png
Normal file
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After Width: | Height: | Size: 10 KiB |
BIN
doc/troubleshooting/left_column_1.png
Normal file
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After Width: | Height: | Size: 34 KiB |
BIN
doc/troubleshooting/left_column_2.png
Normal file
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After Width: | Height: | Size: 34 KiB |
BIN
doc/troubleshooting/left_column_3.png
Normal file
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After Width: | Height: | Size: 34 KiB |
BIN
doc/troubleshooting/left_row_1.png
Normal file
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After Width: | Height: | Size: 36 KiB |
BIN
doc/troubleshooting/left_row_2.png
Normal file
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After Width: | Height: | Size: 36 KiB |
BIN
doc/troubleshooting/left_row_3.png
Normal file
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After Width: | Height: | Size: 35 KiB |
BIN
doc/troubleshooting/pcb.jpg
Normal file
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After Width: | Height: | Size: 306 KiB |
BIN
doc/troubleshooting/right_column_1.png
Normal file
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After Width: | Height: | Size: 38 KiB |
BIN
doc/troubleshooting/right_column_2.png
Normal file
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After Width: | Height: | Size: 36 KiB |
BIN
doc/troubleshooting/right_column_3.png
Normal file
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After Width: | Height: | Size: 40 KiB |
BIN
doc/troubleshooting/right_row_1.png
Normal file
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After Width: | Height: | Size: 38 KiB |
BIN
doc/troubleshooting/right_row_2.png
Normal file
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After Width: | Height: | Size: 39 KiB |
BIN
doc/troubleshooting/right_row_3.png
Normal file
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After Width: | Height: | Size: 39 KiB |
BIN
doc/troubleshooting/right_row_4.png
Normal file
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After Width: | Height: | Size: 14 KiB |
127
doc/troubleshooting/routing.html
Normal file
@@ -0,0 +1,127 @@
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<html>
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<body>
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<h1>Trace debugging</h1>
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<div style="position: relative; width: 98%">
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<img src="pcb.jpg" style="width: 98%">
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<img src="darken.png" class="layer" style="opacity: 0.5">
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<img src="left_column_1.png" class="layer" id="lc1">
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<img src="left_column_2.png" class="layer" id="lc2">
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<img src="left_column_3.png" class="layer" id="lc3">
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<img src="left_row_1.png" class="layer" id="lr1">
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<img src="left_row_2.png" class="layer" id="lr2">
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<img src="left_row_3.png" class="layer" id="lr3">
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<img src="right_column_1.png" class="layer" id="rc1">
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<img src="right_column_2.png" class="layer" id="rc2">
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<img src="right_column_3.png" class="layer" id="rc3">
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<img src="right_row_1.png" class="layer" id="rr1">
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<img src="right_row_2.png" class="layer" id="rr2">
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<img src="right_row_3.png" class="layer" id="rr3">
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<img src="right_row_4.png" class="layer" id="rr4">
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</div>
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<table>
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<theader>
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<th colspan="2">Left</th>
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<th colspan="2">Right</th>
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</theader>
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<tbody>
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<tr>
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<th>Rows</th>
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<th>Columns</th>
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<th>Rows</th>
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<th>Columns</th>
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</tr>
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<tr>
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<td><input type="checkbox" id="cb_lr1" checked><label for="cb_lr1">One</label></td>
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<td><input type="checkbox" id="cb_lc1" checked><label for="cb_lc1">One</label></td>
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<td><input type="checkbox" id="cb_rr1" checked><label for="cb_rr1">One</label></td>
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<td><input type="checkbox" id="cb_rc1" checked><label for="cb_rc1">One</label></td>
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</tr>
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<tr>
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<td><input type="checkbox" id="cb_lr2" checked><label for="cb_lr2">Two</label></td>
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<td><input type="checkbox" id="cb_lc2" checked><label for="cb_lc2">Two</label></td>
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<td><input type="checkbox" id="cb_rr2" checked><label for="cb_rr2">Two</label></td>
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<td><input type="checkbox" id="cb_rc2" checked><label for="cb_rc2">Two</label></td>
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</tr>
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<tr>
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<td><input type="checkbox" id="cb_lr3" checked><label for="cb_lr3">Three</label></td>
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<td><input type="checkbox" id="cb_lc3" checked><label for="cb_lc3">Three</label></td>
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<td><input type="checkbox" id="cb_rr3" checked><label for="cb_rr3">Three</label></td>
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<td><input type="checkbox" id="cb_rc3" checked><label for="cb_rc3">Three</label></td>
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</tr>
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<tr>
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<td></td>
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<td></td>
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<td><input type="checkbox" id="cb_rr4" checked><label for="cb_rr4">Four</label></td>
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<td></td>
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</tr>
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</tbody>
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</table>
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<a onclick="toggleAll(false);" href="#">Hide all</a>
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<a onclick="toggleAll(true);" href="#">Show all</a>
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<p>
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If you are having problems with a row or a column, try to hide all others. When you only have the problematic columns or rows left, you can check all the highlighted solder joints.
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</p>
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<p>
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You might try to short a column/row combo at the mcu(preferably out of socket).
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If this does not work, the mcu might be broken.
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</p>
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<p>
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Next try at the left RJ45 socket, if this does not work, you should reflow the socket pins, and if that does not help, check for scratched traces...(you might get away with running a bodge wire if thats the case.)
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</p>
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<p>
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Next try at the right RJ45 socket, if that does not work, try a few other cables, and next try to re-flow the pins.
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</p>
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<p>
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Next try at the solder bridge points right above the logo on the right side.
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</p>
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<style>
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.layer {
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position: absolute;
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top: 0;
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left: 0;
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width: 98%;
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}
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body {
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background-color: black;
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color: white;
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font-size: 1.5em;
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padding: 2em;
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}
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table, th, td {
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border: solid;
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}
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</style>
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<script>
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var ids = ["lc", "lr", "rc", "rr"];
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for (var ix = 0; ix<=4; ix++) {
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let id_ix = 0;
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while (id_ix < ids.length) {
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var id = `${ids[id_ix]}${ix}`;
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console.log(id);
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var input = document.querySelector(`input[id=cb_${id}`);
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if (input) {
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input.addEventListener('change', function() {
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console.log(id);
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var imgId = this.id.substr(3);
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var img = document.querySelector(`#${imgId}`);
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img.style.visibility = this.checked ? "visible" : "hidden";
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});
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}
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id_ix++;
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}
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}
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function toggleAll(shown) {
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Array.from(document.getElementsByTagName("input"))
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.forEach(e => {e.checked = shown; e.dispatchEvent(new Event("change"))})
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}
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</script>
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</body>
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</html>
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