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ftditest [2010/08/06 17:14]
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
Line 49: 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 =====
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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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 {{:​ftdi:​ftdiend.jpg?​500|}} {{:​ftdi:​ftdiend.jpg?​500|}}
  
-Look at window, make sure RTS box is clicked and CTS is BLACK.+Look at window, make sure RTS box is clicked and CTS is BLACK. ​If CTS is green, cable is bad
  
 {{:​ftdi:​rtsshorttest.gif|}} {{:​ftdi:​rtsshorttest.gif|}}
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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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 {{:​ftdi:​rtslow.gif|}} {{:​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.1281114869.txt.gz · Last modified: 2016/01/28 18:05 (external edit)