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ftditest [2010/08/06 17:08]
ladyada
ftditest [2016/01/28 18:05] (current)
Line 33: Line 33:
 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 =====
Line 75: Line 75:
 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
  
-{{:​ftdi:​ctshigh.jpg|}}+{{:​ftdi:​ctshigh.jpg?500|}}
  
 On terminal, **CTS** box is black. If it is not black, cable is bad. On terminal, **CTS** box is black. If it is not black, cable is bad.
Line 87: Line 87:
 Now connect 100 ohm resistor between brown and black wires Now connect 100 ohm resistor between brown and black wires
  
-{{:​ftdi:​ctslow.jpg|}}+{{:​ftdi:​ctslow.jpg?500|}}
  
 On terminal, **CTS** box is green. If it is not green, cable is bad. On terminal, **CTS** box is green. If it is not green, cable is bad.
  
 {{:​ftdi:​xctuctslow.gif|}} {{:​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.1281114507.txt.gz · Last modified: 2016/01/28 18:05 (external edit)