[Commit-gnuradio] r8720 - usrp2/trunk/firmware/lib

[matt]

Author: matt
Date: 2008-06-25 23:10:04 -0600 (Wed, 25 Jun 2008)
New Revision: 8720

Modified:
   usrp2/trunk/firmware/lib/memory_map.h
Log:
rearranged to reflect the latest from the simple uart


Modified: usrp2/trunk/firmware/lib/memory_map.h
===================================================================
--- usrp2/trunk/firmware/lib/memory_map.h       2008-06-26 05:09:23 UTC (rev 
8719)
+++ usrp2/trunk/firmware/lib/memory_map.h       2008-06-26 05:10:04 UTC (rev 
8720)
@@ -516,14 +516,17 @@
 #define UART_BASE  0xE000
 
 typedef struct {
-  volatile uint32_t data;
-  volatile uint32_t clkdiv;
+  //  All elements are 8 bits except for clkdiv (16), but we use uint32 to 
make 
+  //    the hardware for decoding easier
+  volatile uint32_t clkdiv;  // Set to 50e6 divided by baud rate (no x16 
factor)
+  volatile uint32_t txlevel; // Number of spaces in the FIFO for writes
+  volatile uint32_t rxlevel; // Number of available elements in the FIFO for 
reads
+  volatile uint32_t txchar;  // Write characters to be sent here
+  volatile uint32_t rxchar;  // Read received characters here
 } uart_regs_t;
 
 #define uart_regs ((uart_regs_t *) UART_BASE)
 
-//#define uart_regs ((wb16550_reg_t *) UART_BASE)
-
 ///////////////////////////////////////////////////
 // ATR Controller, Slave 11