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Add POCSAG cal basics

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phl0 2019-01-31 17:36:38 +01:00
parent 8d77ff32cf
commit d50d0c070b
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GPG key ID: 48EA1E640798CA9A
5 changed files with 59 additions and 8 deletions
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30
POCSAGTX.cpp
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@ -1,6 +1,7 @@
/*
* Copyright (C) 2015,2016,2017,2018 by Jonathan Naylor G4KLX
* Copyright (C) 2018 by Andy Uribe CA6JAU
* Copyright (C) 2019 by Florian Wolters DF2ET
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -28,12 +29,18 @@ m_poBuffer(),
m_poLen(0U),
m_poPtr(0U),
m_txDelay(POCSAG_PREAMBLE_LENGTH_BYTES),
m_delay(false)
m_delay(false),
m_cal(false)
{
}
void CPOCSAGTX::process()
{
if (m_cal) {
m_delay = false;
createCal();
}
if (m_poLen == 0U && m_buffer.getData() > 0U) {
if (!m_tx) {
m_delay = true;
@ -80,8 +87,8 @@ bool CPOCSAGTX::busy()
uint8_t CPOCSAGTX::writeData(const uint8_t* data, uint8_t length)
{
if (length != POCSAG_FRAME_LENGTH_BYTES)
return 4U;
//if (length != POCSAG_FRAME_LENGTH_BYTES)
//return 4U;
uint16_t space = m_buffer.getSpace();
if (space < POCSAG_FRAME_LENGTH_BYTES)
@ -120,3 +127,20 @@ uint8_t CPOCSAGTX::getSpace() const
{
return m_buffer.getSpace() / POCSAG_FRAME_LENGTH_BYTES;
}
void CPOCSAGTX::setCal(bool start)
{
m_cal = start ? true : false;
}
void CPOCSAGTX::createCal()
{
// 600 Hz square wave generation
for (unsigned int i = 0U; i < POCSAG_FRAME_LENGTH_BYTES; i++) {
m_poBuffer[i] = 0xAAU;
}
m_poLen = POCSAG_FRAME_LENGTH_BYTES;
m_poPtr = 0U;
}