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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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ftditest [2010/08/06 17:15] ladyada |
ftditest [2016/01/28 18:05] (current) |
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| If test voltages are not 5V and 3.3V, the cable is bad | If test voltages are not 5V and 3.3V, the cable is bad | ||
| - | ====== Communication test ====== | + | ====== 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 | ||
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| 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 ===== | ||
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| If red text does not appear, cable is bad | If red text does not appear, cable is bad | ||
| - | ====== Test CTS ====== | + | ====== STEP 4: Test CTS ====== |
| We will test the CTS pin. Connect 100 ohm resistor between brown and red wires | We will test the CTS pin. Connect 100 ohm resistor between brown and red wires | ||
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| {{:ftdi:xctuctslow.gif|}} | {{:ftdi:xctuctslow.gif|}} | ||
| - | ====== Test RTS ====== | + | ====== STEP 5: Test RTS ====== |
| ===== RTS short test ===== | ===== RTS short test ===== | ||
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| ===== RTS function test ===== | ===== RTS function test ===== | ||
| - | Put 100 ohm resistor between Yellow and Brown wires | + | Put 100 ohm resistor between Green and Brown wires |
| {{:ftdi:ctsrts.jpg?500|}} | {{:ftdi:ctsrts.jpg?500|}} | ||
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| If CTS box does not change color from black to green , cable is bad | If CTS box does not change color from black to green , cable is bad | ||
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| + | ===== Quit software ===== | ||
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| + | After each cable, quit software then unplug cable | ||
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