Initial support for hardware acknowledgements and address recognition. Use RF230_HARD...

[tinyos-2.x.git] / tos / chips / rf2xx / rf230 / README

diff --git a/tos/chips/rf2xx/rf230/README b/tos/chips/rf2xx/rf230/README
index 3ca72722337d6c759733423bc0b84dce8b0a70fb..cb4e9d94dcb876212c207a3f5d3f6b5be9b636bb 100644 (file)
--- a/tos/chips/rf2xx/rf230/README
+++ b/tos/chips/rf2xx/rf230/README
@@ -1,7 +1,7 @@
 
 The RF230 radio driver has the following configuration options. Some of 
-these are set in the platforms/xxx/chips/rf230/RadioConfig.h header file. 
-For example see the IRIS platform.
+these are set in the platforms/xxx/chips/rf230/RadioConfig.h header file, 
+see the IRIS platform for example, others can be set in your Makefile.
 
 RF230_TRX_CTRL_0_VALUE:
 
@@ -33,7 +33,7 @@ RF230ActiveMessageC.
 RF230_CRCBYTE_COMMAND:
 
 This is the command used to calculate the CRC for the RF230 chip, since it 
-does not support hardware CRC checking (in rev A)
+does not support hardware CRC checking (in rev A).
 
 RF230_SLOW_SPI:
 
@@ -47,3 +47,10 @@ If you define this, then the content of the RF230_PHY_ED_LEVEL is queried
 instead of the RSSI value for eahc incoming message. This value can be 
 obtained with the PacketRSSI interface.
 
+RF230_HARDWARE_ACK
+
+If you define this, then the radio stack will use hardware acknowledgements
+and address recognition. In particular, you will not be able to snoop on
+onther messages. The load on the CPU is reduced, you should be able to send
+more messages under heavy load. Note, that the PacketRSSI interface will
+return the energy level (and not the rssi value) of received packet.