20-151-0178 Rabbit Semiconductor, 20-151-0178 Datasheet - Page 20

• Manufacturer Part Number: 20-151-0178
• Description: CABLE CONVERTER RS-232 TO USB
• Manufacturer: Rabbit Semiconductor

Specifications of 20-151-0178

• Accessory Type: USB to RS232 Adapter
• Product: Microcontroller Accessories
• For Use With/related Products: Rabbit-based Boards
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 20-151-0178; 316-1181

If you see the message
•
If you see the message
•
•
•
14
Dynamic C or the programming cable is not attached to the correct COM port on the PC. To change the
COM port Dynamic C will use, choose Options > Project Options and click the Communications tab.
Select another COM port from the Serial Port pull-down menu.
munications tab. Select a different value in the Debug Baud Rate dropdown menu.
ing to download, you might get other timeout error messages. Dynamic C needs a lot of CPU time dur-
ing a download. Try stopping the other tasks to see if it helps.
Another program (for example, a terminal emulator) is already using the COM port you chose for
Check the programming and power cable connections.
You might have a baud rate mismatch problem. Choose Options > Project Options and click the Com-
If you have a very slow PC or are doing other CPU-intensive tasks at the same time Dynamic C is try-
A, B, C: These pins are the center-
tapped power supply input. “B” is
ground. Both “A” and “C” measure
the voltage coming from the external
power supply
D: This capacitor terminal is an easy
place to access the board-level
ground.
E, F: These pins are the output and
input, respectively, of the 3.45 V
regulator.
Figure 2.6 Test Points for Checking Voltage Levels on the PowerCore 3800
Test Points
Table 2-6. Description for Test Points in
“Could not open serial port”
“Timeout while waiting for response from target”
www.rabbit.com
From B to A, 12 V AC or higher
From B to C, 12 V AC or higher
From D to E, approx. 3.45 V DC
From D to F, approx. 5 V DC
Expected Measurement
Figure 2.6
Getting Started