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ftditest [2010/08/06 17:08] ladyada |
ftditest [2010/08/06 17:15] ladyada |
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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. | ||
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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|}} | ||
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+ | ====== Test RTS ====== | ||
+ | ===== RTS short test ===== | ||
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+ | FTDI cable has nothing attached to it | ||
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+ | {{:ftdi:ftdiend.jpg?500|}} | ||
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+ | Look at window, make sure RTS box is clicked and CTS is BLACK. If CTS is green, cable is bad | ||
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+ | {{:ftdi:rtsshorttest.gif|}} | ||
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+ | ===== RTS function test ===== | ||
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+ | Put 100 ohm resistor between Yellow and Brown wires | ||
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+ | {{:ftdi:ctsrts.jpg?500|}} | ||
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+ | When RTS box is clicked, CTS box is GREEN | ||
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+ | {{:ftdi:rtshigh.gif|}} | ||
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+ | When RTS box is not clicked, CTS box is BLACK | ||
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+ | {{:ftdi:rtslow.gif|}} | ||
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+ | If CTS box does not change color from black to green , cable is bad |