Hi Folks, The Gainspan demo written for the RL78/G14 uses SPI interface and provides the full AT command set for the stack that is on-board the module. It all comes as part of the RDK RL78/G14 sample code (GainSpan_SPI.c, ATCmdLib.c, and couple of demos) You should be able to port this by just providing a low-level SPI driver for RX (sample code seems pretty well abstracted). Maybe this path to solution will work for you. -Kevin
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