From: andreaskoepke <andreaskoepke>
Date: Tue, 10 Jul 2007 13:16:01 +0000 (+0000)
Subject: update constants to measured reality. resistors in HF circuits are fun.
X-Git-Tag: release_tools_1_2_4_1~56
X-Git-Url: https://oss.titaniummirror.com/gitweb/?p=tinyos-2.x.git;a=commitdiff_plain;h=427cd99fe8c4d5410c3795eae940dcea3b3f1e01

update constants to measured reality. resistors in HF circuits are fun.
---

diff --git a/tos/platforms/eyesIFX/chips/tda5250/tda5250RegDefaultSettings.h b/tos/platforms/eyesIFX/chips/tda5250/tda5250RegDefaultSettings.h
index ab971287..13cb7d77 100644
--- a/tos/platforms/eyesIFX/chips/tda5250/tda5250RegDefaultSettings.h
+++ b/tos/platforms/eyesIFX/chips/tda5250/tda5250RegDefaultSettings.h
@@ -53,14 +53,23 @@
 // shortest: low rx; low tx energy consumption (1m to 3m range)
 #define TABLE_TOP                                    0x84E8
 
-/** regulate distance using variable resistor */
-#define RF_DAMPING_0dB  255
-#define RF_DAMPING_5dB  248
-#define RF_DAMPING_10dB 245
-#define RF_DAMPING_15dB 241
-#define RF_DAMPING_20dB 239
+/** regulate distance using variable resistor, values for high tx power */
+#define RF_HITX_DAMPING_0dB  255
+#define RF_HITX_DAMPING_5dB  248
+#define RF_HITX_DAMPING_10dB 245
+#define RF_HITX_DAMPING_15dB 241
+#define RF_HITX_DAMPING_20dB 239
 
-#define INITIAL_RF_POWER RF_DAMPING_0dB
+/** regulate distance using variable resistor, values for low tx power */
+#define RF_LOTX_DAMPING_0dB  255
+#define RF_LOTX_DAMPING_5dB  90
+#define RF_LOTX_DAMPING_10dB 67
+#define RF_LOTX_DAMPING_15dB 50
+#define RF_LOTX_DAMPING_16dB 40
+#define RF_LOTX_DAMPING_17dB 30
+
+// choose one
+#define INITIAL_RF_POWER RF_HITX_DAMPING_0dB
 
 #define TDA5250_REG_DEFAULT_SETTING_CONFIG           FULL_RANGE
 #define TDA5250_REG_DEFAULT_SETTING_FSK              0x0A0C