ftditest
Differences
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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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ftditest [2010/08/06 17:03] ladyada |
ftditest [2016/01/28 18:05] (current) |
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| {{:ftdi:5vtest.jpg|}} | {{:ftdi:5vtest.jpg|}} | ||
| - | Test voltage between black and orange wires - it must be 3.3V | + | Test voltage between black and orange wires - it must be 3.3V (NOT 5V) |
| {{:ftdi:vcciotest.jpg|}} | {{:ftdi:vcciotest.jpg|}} | ||
| - | ====== Communication test ====== | + | If test voltages are not 5V and 3.3V, the cable is bad |
| + | |||
| + | ====== Install software ====== | ||
| Download X-CTU: http://ftp1.digi.com/support/utilities/40002637_c.exe | Download X-CTU: http://ftp1.digi.com/support/utilities/40002637_c.exe | ||
| Line 47: | Line 49: | ||
| Click on **TERMINAL** tab | Click on **TERMINAL** tab | ||
| - | ====== Test RX and TX ====== | + | ====== STEP 3: Test RX and TX ====== |
| ===== Test TX is not shorted to RX ===== | ===== Test TX is not shorted to RX ===== | ||
| Line 53: | Line 55: | ||
| FTDI cable has nothing attached to it | FTDI cable has nothing attached to it | ||
| - | {{:ftdi:ftdiend.jpg|}} | + | {{:ftdi:ftdiend.jpg?500|}} |
| - | Type text into terminal window. All text should be blue | + | Type text into terminal window. All text should be blue. If red text appears, the cable is bad. |
| {{:ftdi:txshorttest.gif|}} | {{:ftdi:txshorttest.gif|}} | ||
| Line 71: | Line 73: | ||
| {{:ftdi:xcturxtx.gif|}} | {{:ftdi:xcturxtx.gif|}} | ||
| - | ====== Test CTS ====== | + | If red text does not appear, cable is bad |
| + | |||
| + | ====== STEP 4: Test CTS ====== | ||
| + | |||
| + | We will test the CTS pin. Connect 100 ohm resistor between brown and red wires | ||
| + | |||
| + | {{:ftdi:ctshigh.jpg?500|}} | ||
| + | |||
| + | On terminal, **CTS** box is black. If it is not black, cable is bad. | ||
| {{:ftdi:xctuctshigh.gif|}} | {{:ftdi:xctuctshigh.gif|}} | ||
| + | |||
| + | Now connect 100 ohm resistor between brown and black wires | ||
| + | |||
| + | {{:ftdi:ctslow.jpg?500|}} | ||
| + | |||
| + | On terminal, **CTS** box is green. If it is not green, cable is bad. | ||
| + | |||
| + | {{:ftdi:xctuctslow.gif|}} | ||
| + | |||
| + | ====== STEP 5: Test RTS ====== | ||
| + | ===== RTS short test ===== | ||
| + | |||
| + | FTDI cable has nothing attached to it | ||
| + | |||
| + | {{:ftdi:ftdiend.jpg?500|}} | ||
| + | |||
| + | Look at window, make sure RTS box is clicked and CTS is BLACK. If CTS is green, cable is bad | ||
| + | |||
| + | {{:ftdi:rtsshorttest.gif|}} | ||
| + | |||
| + | ===== RTS function test ===== | ||
| + | |||
| + | Put 100 ohm resistor between Green and Brown wires | ||
| + | |||
| + | {{:ftdi:ctsrts.jpg?500|}} | ||
| + | |||
| + | When RTS box is clicked, CTS box is GREEN | ||
| + | |||
| + | {{:ftdi:rtshigh.gif|}} | ||
| + | |||
| + | When RTS box is not clicked, CTS box is BLACK | ||
| + | |||
| + | {{:ftdi:rtslow.gif|}} | ||
| + | |||
| + | If CTS box does not change color from black to green , cable is bad | ||
| + | |||
| + | ===== Quit software ===== | ||
| + | |||
| + | After each cable, quit software then unplug cable | ||
| + | |||
/home/ladyada/public_html/wiki/data/attic/ftditest.1281114204.txt.gz · Last modified: 2016/01/28 18:05 (external edit)
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