// *********************************************************************
// *                       E10 - RFMODE-TX                             *
// *                        RF transmiter                              *
// *********************************************************************
// RF modes using.
// For more information about RF modes see IQRF OS Ref. Guide and User´s Guide.
//
// Example E10 consists of 2 programs:
// - RFMODE-TX
// - RFMODE-RX
//
// Intended for:
//   HW: - (DC)TR-72D + CK-USB-04x development kit
//
//   OS: - v4.06D
//
// Description:
//   This example shows how to use RF modes. It should be
//   used with IQRF IDE Terminal to send RF packet in different RF modes
//   using SPI command.
//   Commands:
//   - S: Send request in STD mode
//   - L: Send request in LP mode
//   - X: Send request in XLP mode
//   An answer from RFMODE-RX is expected after the request is sent.
//   The RFMODE-RX must use appropriate RF mode.
//
// ---------------------------------------------------------------------
// Online IQRF OS Reference Guide: https://doc.iqrf.org/IQRF-OS-Reference-guide
//
// Copyright (c) IQRF Tech s.r.o.
//
// File:    E10-RFMODE-TX.c
// Version: v2.08                                   Revision: 07/01/2022
//
// Revision history:
//   v2.08: 07/01/2022  Tested for OS 4.06D.
//   v2.07: 30/06/2021  Tested for OS 4.05D.
//   v2.06: 26/08/2020  Tested for OS 4.04D.
//   v2.05: 21/09/2018  Tested for OS 4.03D.
//   v2.04: 23/08/2017  Tested for OS 4.02D.
//   v2.02: 03/03/2017  Tested for OS 4.00D.
//                      Preamble quality test added.
//   v2.01: 22/02/2016  Tested for OS 3.08D.
//   v2.00: 03/07/2015  First release for (DC)TR-7xD.
//
// *********************************************************************
#include "IQRF.h"  // System header files

// *********************************************************************
#define RX_FILTER               5

// *********************************************************************
void APPLICATION()
{
    enableSPI();
    appInfo();                              // Copy menu from EEPROM
    copyBufferINFO2COM();                   //   (from Appl. info) to bufferCOM
    startSPI(32);                           // And then try to send it via SPI

    while (1)
    {
        setRFmode(_WPE | _RX_STD | _TX_STD);
        _checkRFcfg_PQT = 1;                // Enable preamble quality test
        toutRF = 1;                         // Wait Packed End active so the toutRF can be set to minimum
    
        if (checkRF(RX_FILTER))
        {
            if (RFRXpacket())
            {
                if (bufferRF[0] == bufferCOM[0])
                {
                    copyBufferRF2COM();
                    startSPI(DLEN);         // If received send it via SPI
                    pulseLEDG();
                    continue;
                }
            }
        }
   
        if (getStatusSPI())
            continue;
        
        if (_SPIRX)                         // Is anything received via SPI?
        {
            if (!_SPICRCok)
                goto restart_SPI;
                
            stopSPI();
                                                    
            switch (bufferCOM[0])           // bufferCOM[0] - RF Mode
            {                                       
                case 'S':
                    setRFmode(_TX_STD);     // Standard TX preamble
                    break;
                    
                case 'L':
                    setRFmode(_TX_LP);      // Prolonged TX preamble according to LP mode
                    break;
                    
                case 'X':
                    setRFmode(_TX_XLP);     // Prolonged TX preamble according to XLP mode
                    break;
                    
                default:
                    goto restart_SPI;
            }   
            
            bufferRF[0] = bufferCOM[0];     // RF mode
            PIN = 0;
            DLEN = 1;
            pulseLEDR();
            RFTXpacket();                   // Send request
            
restart_SPI:
            startSPI(0);
        }
    }
}

// *********************************************************************
#pragma packedCdataStrings 0
//                             00000000001111111111222222222233
#pragma cdata[__EEAPPINFO] =  "Commands: S L X                 "

// *********************************************************************