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/*
* nld_NE555.c
*
*/
#include "nld_ne555.h"
#include "../nl_setup.h"
#define R_OFF (1E20)
#define R_ON (1)
inline double NETLIB_NAME(NE555)::clamp(const double v, const double a, const double b)
{
double ret = v;
double vcc = TERMANALOG(m_R1.m_P);
if (ret > vcc - a)
ret = vcc - a;
if (ret < b)
ret = b;
return ret;
}
NETLIB_START(NE555)
{
register_sub(m_R1, "R1");
register_sub(m_R2, "R2");
register_sub(m_R3, "R3");
register_sub(m_RDIS, "RDIS");
register_subalias("GND", m_R3.m_N); // Pin 1
register_input("TRIG", m_TRIG); // Pin 2
register_output("OUT", m_OUT); // Pin 3
register_input("RESET", m_RESET); // Pin 4
register_subalias("CONT", m_R1.m_N); // Pin 5
register_input("THRESH", m_THRES); // Pin 6
register_subalias("DISCH", m_RDIS.m_P); // Pin 7
register_subalias("VCC", m_R1.m_P); // Pin 8
m_R1.set_R(5000);
m_R2.set_R(5000);
m_R3.set_R(5000);
m_RDIS.set_R(R_OFF);
setup().connect(m_R1.m_N, m_R2.m_P);
setup().connect(m_R2.m_N, m_R3.m_P);
setup().connect(m_RDIS.m_N, m_R3.m_N);
m_last_out = false;
save(NAME(m_last_out));
}
NETLIB_UPDATE(NE555)
{
// FIXME: assumes GND is connected to 0V.
double vt = clamp(TERMANALOG(m_R2.m_P), 0.7, 1.4);
bool bthresh = (INPANALOG(m_THRES) > vt);
bool btrig = (INPANALOG(m_TRIG) > clamp(TERMANALOG(m_R2.m_N), 0.7, 1.4));
bool out = m_last_out;
if (!btrig)
{
out = true;
}
else if (bthresh)
{
out = false;
}
if (!m_last_out && out)
{
OUTANALOG(m_OUT, TERMANALOG(m_R1.m_P), NLTIME_FROM_NS(100));
m_RDIS.set_R(R_OFF);
}
else if (m_last_out && !out)
{
OUTANALOG(m_OUT, TERMANALOG(m_R3.m_N), NLTIME_FROM_NS(100));
m_RDIS.set_R(R_ON);
}
m_last_out = out;
}
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