Difference between revisions of "FTDI-49MM"

Revision as of 13:47, 23 July 2021

FT230X USB-to-FTDI Serial IC
USB B connector (not micro or mini, but the beefy USB B connector)
FTDI compatible pinout
3.3V or 5V selection jumper
Inputs are 5V tolerant (when set to 3.3V levels)
2x6 Header for 5V power distribution
Rx and Tx LEDs
(4) 4-40 mounting holes
- Mounts to optional 95mm to 45mm adapter
- Stacks up with standoffs for use with other 95mm cards
Can be direct wired to DTE or DCE TTL-to-RS-232 converters

(Inputs are 5V tolerant (when set to 3.3V levels)

Connect test card to UUT
- Connect FTDI - black = ground
- Does not require LEDs connections
- Does not require 5V Power Supply (used for OPTOUSB card)
Test card
Plug in USB to computer
- Should hear Windoze detect sound
- Use Device Manager to determine which COM port is used
Run puTTY
- Baud rate = 115,200 baud
- Hardware handshake RTS/CTS
- COM port from Device Manager
Jumper Settings - Normal operation
- Left jumper in right position (loopback data)
- Middle jumper in left position (handshake = active/ground)
- Right jumper in right position (loopback handshake)
- Type on keyboard and verify it returns data
- Verify both LEDs on the UUT light
Jumper settings - Test Tx/Rx isolation
- Move left jumper to left position
- Type data nothing should come back
- Verify RX LED on the UUT only lights
- Move left jumper to right position
Jumper settings - Test RTS/CTS
- Move right jumper to left position (handshake controlled by middle jumper)
- Type and characters should return
- Move middle jumper to to right position (hardware handshake off)
- Type and nothing should go through
- Move middle jumper to to left position (hardware handshake on)
- Characters that were buffered should come in at once

@@ Line 23: / Line 23: @@
 * Select 5V or 3.3V signal levels on FTDI connector
 * On FTDI connector VCC pin pin 3
-( Inputs are 5V tolerant (when set to 3.3V levels)
+(Inputs are 5V tolerant (when set to 3.3V levels)
 === FTDI Connector ===