ST / stm-spirit1-rf-driver

Prototype RF driver for STM Sub-1 GHz RF expansion board based on the SPSGRF-868 module for STM32 Nucleo.

Prototype RF Driver for STM Sub-1 GHz RF Expansion Boards based on the SPSGRF-868 and SPSGRF-915 Modules for STM32 Nucleo

Currently supported boards:

Note, in order to use expansion board X-NUCLEO-IDS01A4 in mbed you need to perform the following HW modifications on the board:

  • Unmount resistor R4
  • Mount resistor R7

Furthermore, on some Nucleo development boards (e.g. the NUCLEO_F429ZI), in order to be able to use Ethernet together with these Sub-1 GHz RF expansion boards, you need to compile this driver with macro SPIRIT1_SPI_MOSI=PB_5 defined, while the development board typically requires some HW modification as e.g. described here!

This driver can be used together with the 6LoWPAN stack (a.k.a. Nanostack).

Diff: SimpleSpirit1.h

Revision:
11:b769d6caad82
Parent:
9:3db68ab23070
Child:
12:b8056eda4028
--- a/SimpleSpirit1.h	Tue Oct 25 10:56:52 2016 +0200
+++ b/SimpleSpirit1.h	Wed Oct 26 15:08:44 2016 +0200
@@ -401,11 +401,17 @@
 
     /** Get latest value of RSSI **/
     float get_last_rssi_dbm(void) {
+    	if(last_rssi == 0) {
+    		last_rssi = qi_get_rssi();
+    	}
     	return (-120.0+((float)(last_rssi-20))/2);
     }
 
     /** Get latest value of LQI **/
     uint8_t get_last_lqi(void) {
+    	if(last_lqi == 0) {
+    		last_lqi = qi_get_lqi();
+    	}
     	return last_lqi;
     }