Changes between Version 6 and Version 7 of FAQ

Timestamp:

Jun 16, 2006, 1:51:41 AM (18 years ago)

Author:

snovich

Comment:

--

FAQ

@@ -20 +20 @@
 2. Go to "Paths" Tab and then in the "Libraries to Link against(-l)" box, make sure that you add in
 "xilkernel lwip4 " or that this phrase already exists. It's really just the names for each of these special libraries to be included separated by spaces.
+
+=== I'm not getting any serial port interaction. ===
+There are several problems that could cause this:
+1. The wire shorting the pins over the serial port on the WARP main board has become loose/disconnected
+2. Incorrect cable type (this is most common): Standard serial cables DO NOT work with the WARP serial interface. A little DB9 (Null Modem) type serial cable is required. The quick fix for this is to open a standard serial cable and flip and resolder the rx/tx pin mapping -- pins 2 & 3. In a normal serial cable, pin 2 maps to pin 2 and the same for pin 3. These must be remapped so 2 maps to 3 and 3 maps to 2.
+3. A system with a different hardware configuration has been redownloaded to WARP. In rare cases, the FPGA can lock up if a new system has been downloaded that has a different hardware configuration. The solution to this is to simply turn on and off the system power, allowing ample time for the capacitors on the board to drain.
+