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: source/SimpleSpirit1.cpp

Revision:
71:4a7772415d9c
Parent:
70:19b5f9b9ba80
Child:
82:a18c22d2b83a
--- a/source/SimpleSpirit1.cpp	Thu Jul 13 09:21:06 2017 +0200
+++ b/source/SimpleSpirit1.cpp	Tue Jul 18 09:53:41 2017 +0200
@@ -13,15 +13,9 @@
         do { \
             uint32_t start = us_ticker_read(); \
             uint32_t limit = (uint32_t)millisecs*1000U; \
-            \
             while (!(cond)) { \
                 uint32_t now = us_ticker_read(); \
-                \
-                if(now >= start) { \
-                    if((now - start) > limit) break; \
-                } else { \
-                    if((now + ~start) > limit) break; \
-                } \
+                if((now - start) > limit) break; \
             } \
         } while(0)