[tuxdroid-svn] r1327 - firmware/rf/trunk

[jaguarondi <c2m...@c2...>]

Author: jaguarondi
Date: 2008-07-16 10:08:10 +0200 (Wed, 16 Jul 2008)
New Revision: 1327

Modified:
   firmware/rf/trunk/defines.h
Log:
* Updated some parameters and comments.



Modified: firmware/rf/trunk/defines.h
===================================================================
--- firmware/rf/trunk/defines.h	2008-07-16 08:00:29 UTC (rev 1326)
+++ firmware/rf/trunk/defines.h	2008-07-16 08:08:10 UTC (rev 1327)
@@ -30,7 +30,7 @@
 //**Define the used HOPPING SCHEME**//
 //#define HOPPING
 #define NOHOPP
-#define TRX_CHANNEL     4
+#define TRX_CHANNEL 0
 //#define CYCHOPP
 //**Define the used HOPPING SCHEME**//
 
@@ -113,7 +113,7 @@
 /* Part of the HEADER which is stored in the buffer. 2 bytes of the PREAMBLE
  * aren't stored but sent directly. */
 #define STORED_HEADER (HEADER - 2)
-#define PAYLOAD 75 /* Payload in bytes */
+#define PAYLOAD 73 /* Payload in bytes */
 #define RF_BUFFER_SIZE (PAYLOAD + STORED_HEADER)
 
 /* USART bit to tick ratio: sys_clk / (8 * 1152e3) */
@@ -130,7 +130,7 @@
 #define T_PWR_UP 0//69 /* 40us */
 /* Programming (~20us) and PLL loop (>200us) */
 #define T_LOOP 380
-/* Sending the HEAER and PAYLOAD */
+/* Sending the HEDAER and PAYLOAD */
 //#define T_ACTIVE 1124 /* 650us */
 #define T_MARGIN 20
 #define T_ACTIVE (T_HEADER + T_PAYLOAD + T_MARGIN)
@@ -151,9 +151,12 @@
 
 /* There's a latency between the time the master sends the first byte of the
  * payload and the time the slave captures the last byte of the header. This
- * value is better checked with an oscilloscope: the first byte of the preamble
- * should be received 50us (T_RX_ON) after RX_ON is set. */
-#define T_LATENCY 10
+ * value is can be checked with an oscilloscope: the first byte of the preamble
+ * should be received 50us (T_RX_ON) after RX_ON is set. This should be true
+ * for both master and slave.
+ * Another way is to check the minimum and maximum values that still work
+ * (checksum OK) and get the value in the middle. */
+#define T_LATENCY 25
 
 //#define T_1ms 1728 [> Exactly -> 1000us <]
 //#define T_PWR_UP_TX 69 [> 40us <]