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Add OOK example to simulate Ventus/alecto wind station, reduce granularity to 100Khz

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This commit is contained in:
F5OEO 2018-12-20 15:40:16 +00:00
parent 1be11a70e3
commit ff8fa74517
3 changed files with 437 additions and 199 deletions
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584
app/testrpitx.cpp
View file

@ -5,7 +5,7 @@
#include <cstring> #include <cstring>
#include <signal.h> #include <signal.h>
bool running=true; bool running = true;
/*int /*int
gcd ( int a, int b ) gcd ( int a, int b )
{ {
@ -16,7 +16,7 @@ gcd ( int a, int b )
return b; return b;
}*/ }*/
uint64_t gcd(uint64_t x,uint64_t y) uint64_t gcd(uint64_t x, uint64_t y)
{ {
return y == 0 ? x : gcd(y, x % y); return y == 0 ? x : gcd(y, x % y);
} }
@ -29,72 +29,72 @@ uint64_t lcm(uint64_t x, uint64_t y)
void SimpleTest(uint64_t Freq) void SimpleTest(uint64_t Freq)
{ {
generalgpio genpio; generalgpio genpio;
fprintf(stderr,"GPIOPULL =%x\n",genpio.gpioreg[GPPUDCLK0]); fprintf(stderr, "GPIOPULL =%x\n", genpio.gpioreg[GPPUDCLK0]);
#define PULL_OFF 0 #define PULL_OFF 0
#define PULL_DOWN 1 #define PULL_DOWN 1
#define PULL_UP 2 #define PULL_UP 2
genpio.gpioreg[GPPUD]=1;//PULL_DOWN; genpio.gpioreg[GPPUD] = 1; //PULL_DOWN;
usleep(150); usleep(150);
genpio.gpioreg[GPPUDCLK0]=(1<<4); //GPIO CLK is GPIO 4 genpio.gpioreg[GPPUDCLK0] = (1 << 4); //GPIO CLK is GPIO 4
usleep(150); usleep(150);
genpio.gpioreg[GPPUDCLK0]=(0); //GPIO CLK is GPIO 4 genpio.gpioreg[GPPUDCLK0] = (0); //GPIO CLK is GPIO 4
//genpio.setpulloff(4); //genpio.setpulloff(4);
padgpio pad; padgpio pad;
pad.setlevel(7); pad.setlevel(7);
clkgpio clk; clkgpio clk;
clk.print_clock_tree(); clk.print_clock_tree();
clk.SetPllNumber(clk_pllc,0); clk.SetPllNumber(clk_pllc, 0);
//clk.SetAdvancedPllMode(true); //clk.SetAdvancedPllMode(true);
//clk.SetPLLMasterLoop(0,4,0); //clk.SetPLLMasterLoop(0,4,0);
//clk.Setppm(+7.7); //clk.Setppm(+7.7);
clk.SetCenterFrequency(Freq,1000); clk.SetCenterFrequency(Freq, 1000);
double freqresolution=clk.GetFrequencyResolution(); double freqresolution = clk.GetFrequencyResolution();
double RealFreq=clk.GetRealFrequency(0); double RealFreq = clk.GetRealFrequency(0);
fprintf(stderr,"Frequency resolution=%f Error freq=%f\n",freqresolution,RealFreq); fprintf(stderr, "Frequency resolution=%f Error freq=%f\n", freqresolution, RealFreq);
int Deviation=0; int Deviation = 0;
clk.SetFrequency(000); clk.SetFrequency(000);
clk.enableclk(4); clk.enableclk(4);
usleep(100); usleep(100);
//clk.SetClkDivFrac(100,0); // If mash!=0 update doesnt seem to work //clk.SetClkDivFrac(100,0); // If mash!=0 update doesnt seem to work
int count=0; int count = 0;
while(running) while (running)
{ {
//clk.SetMasterMultFrac(44,(1<<count)); //clk.SetMasterMultFrac(44,(1<<count));
//uint32_t N=(1<<18); //uint32_t N=(1<<18);
uint32_t N=(1<<13)*count; uint32_t N = (1 << 13) * count;
//clk.SetMasterMultFrac(34,N); //clk.SetMasterMultFrac(34,N);
printf("count =%d gcd%d spurious%f N=%x %f\n",count,lcm(N,1<<20),(double)gcd(1<<20,N)*19.2e6/(double)(1<<20),N,N/(float)(1<<20)); printf("count =%d gcd%d spurious%f N=%x %f\n", count, lcm(N, 1 << 20), (double)gcd(1 << 20, N) * 19.2e6 / (double)(1 << 20), N, N / (float)(1 << 20));
count=(count+1)%128; count = (count + 1) % 128;
//usleep(10000000); //usleep(10000000);
int a=getc(stdin); int a = getc(stdin);
static int Ki=4,Kp=0,Ka=0; static int Ki = 4, Kp = 0, Ka = 0;
Kp=Kp+1; Kp = Kp + 1;
if(Kp>15) if (Kp > 15)
{ Kp=0; {
Ki=Ki+1; Kp = 0;
Ki = Ki + 1;
} }
//Ki=Ki+1; //Ki=Ki+1;
if(Ki>11) if (Ki > 11)
{ {
Ki=4; Ki = 4;
Ka++; Ka++;
} }
Ki=Kp; Ki = Kp;
clk.SetClkDivFrac(count,count); clk.SetClkDivFrac(count, count);
//clk.SetPLLMasterLoop(Ki,4,Ka); //clk.SetPLLMasterLoop(Ki,4,Ka);
//clk.SetPLLMasterLoop(2,4,0); //clk.SetPLLMasterLoop(2,4,0);
//clk.SetPLLMasterLoop(3,4,0); //best one //clk.SetPLLMasterLoop(3,4,0); //best one
//printf("Ki=%d :Kp %d Ka %d\n ",Ki,Kp,Ka); //printf("Ki=%d :Kp %d Ka %d\n ",Ki,Kp,Ka);
/*clk.SetFrequency(000); /*clk.SetFrequency(000);
sleep(5); sleep(5);
@ -108,75 +108,66 @@ void SimpleTest(uint64_t Freq)
usleep(1000); usleep(1000);
}*/ }*/
clk.disableclk(4); clk.disableclk(4);
} }
void SimpleTestDMA(uint64_t Freq) void SimpleTestDMA(uint64_t Freq)
{ {
int SR=200000; int SR = 200000;
int FifoSize=4096; int FifoSize = 4096;
ngfmdmasync ngfmtest(Freq,SR,14,FifoSize); ngfmdmasync ngfmtest(Freq, SR, 14, FifoSize);
for(int i=0;running;) for (int i = 0; running;)
{ {
//usleep(10); //usleep(10);
usleep(FifoSize*1000000.0*3.0/(4.0*SR)); usleep(FifoSize * 1000000.0 * 3.0 / (4.0 * SR));
int Available=ngfmtest.GetBufferAvailable(); int Available = ngfmtest.GetBufferAvailable();
if(Available>FifoSize/2) if (Available > FifoSize / 2)
{ {
int Index=ngfmtest.GetUserMemIndex(); int Index = ngfmtest.GetUserMemIndex();
//printf("GetIndex=%d\n",Index); //printf("GetIndex=%d\n",Index);
for(int j=0;j<Available;j++) for (int j = 0; j < Available; j++)
{ {
//ngfmtest.SetFrequencySample(Index,((i%10000)>5000)?1000:0); //ngfmtest.SetFrequencySample(Index,((i%10000)>5000)?1000:0);
ngfmtest.SetFrequencySample(Index+j,(i%SR)/10.0); ngfmtest.SetFrequencySample(Index + j, (i % SR) / 10.0);
i++; i++;
} }
} }
} }
fprintf(stderr,"End\n"); fprintf(stderr, "End\n");
ngfmtest.stop();
}
ngfmtest.stop();
}
void SimpleTestFileIQ(uint64_t Freq) void SimpleTestFileIQ(uint64_t Freq)
{ {
FILE *iqfile=NULL; FILE *iqfile = NULL;
iqfile=fopen("../ssbtest.iq","rb"); iqfile = fopen("../ssbtest.iq", "rb");
if (iqfile==NULL) printf("input file issue\n"); if (iqfile == NULL)
printf("input file issue\n");
#define IQBURST 1280 #define IQBURST 1280
bool stereo=true; bool stereo = true;
int SR=48000; int SR = 48000;
int FifoSize=512; int FifoSize = 512;
iqdmasync iqtest(Freq,SR,14,FifoSize,MODE_IQ); iqdmasync iqtest(Freq, SR, 14, FifoSize, MODE_IQ);
short IQBuffer[IQBURST*2]; short IQBuffer[IQBURST * 2];
std::complex<float> CIQBuffer[IQBURST]; std::complex<float> CIQBuffer[IQBURST];
while(running) while (running)
{ {
int nbread=fread(IQBuffer,sizeof(short),IQBURST*2,iqfile); int nbread = fread(IQBuffer, sizeof(short), IQBURST * 2, iqfile);
if(nbread>0) if (nbread > 0)
{ {
for(int i=0;i<nbread/2;i++) for (int i = 0; i < nbread / 2; i++)
{ {
CIQBuffer[i]=std::complex<float>(IQBuffer[i*2]/32768.0,IQBuffer[i*2+1]/32768.0); CIQBuffer[i] = std::complex<float>(IQBuffer[i * 2] / 32768.0, IQBuffer[i * 2 + 1] / 32768.0);
} }
iqtest.SetIQSamples(CIQBuffer,nbread/2,1); iqtest.SetIQSamples(CIQBuffer, nbread / 2, 1);
} }
else else
{ {
printf("End of file\n"); printf("End of file\n");
fseek ( iqfile , 0 , SEEK_SET ); fseek(iqfile, 0, SEEK_SET);
} }
} }
@ -185,62 +176,54 @@ void SimpleTestFileIQ(uint64_t Freq)
void SimpleTestbpsk(uint64_t Freq) void SimpleTestbpsk(uint64_t Freq)
{ {
clkgpio clk; clkgpio clk;
clk.print_clock_tree(); clk.print_clock_tree();
int SR=250000; int SR = 250000;
int FifoSize=10000; int FifoSize = 10000;
int NumberofPhase=2; int NumberofPhase = 2;
phasedmasync biphase(Freq,SR,NumberofPhase,14,FifoSize); phasedmasync biphase(Freq, SR, NumberofPhase, 14, FifoSize);
padgpio pad; padgpio pad;
pad.setlevel(7); pad.setlevel(7);
int lastphase=0; int lastphase = 0;
#define BURST_SIZE 100 #define BURST_SIZE 100
int PhaseBuffer[BURST_SIZE]; int PhaseBuffer[BURST_SIZE];
while(running) while (running)
{ {
for(int i=0;i<BURST_SIZE;i++) for (int i = 0; i < BURST_SIZE; i++)
{ {
int phase=(rand()%NumberofPhase); int phase = (rand() % NumberofPhase);
PhaseBuffer[i]=phase; PhaseBuffer[i] = phase;
} }
biphase.SetPhaseSamples(PhaseBuffer,BURST_SIZE); biphase.SetPhaseSamples(PhaseBuffer, BURST_SIZE);
} }
biphase.stop(); biphase.stop();
} }
void SimpleTestSerial() void SimpleTestSerial()
{ {
bool stereo=true; bool stereo = true;
int SR=10000; int SR = 10000;
int FifoSize=1024; int FifoSize = 1024;
bool dualoutput=true; bool dualoutput = true;
serialdmasync testserial(SR,14,FifoSize,dualoutput); serialdmasync testserial(SR, 14, FifoSize, dualoutput);
while(running) while (running)
{ {
usleep(10); usleep(10);
int Available=testserial.GetBufferAvailable(); int Available = testserial.GetBufferAvailable();
if(Available>256) if (Available > 256)
{ {
int Index=testserial.GetUserMemIndex(); int Index = testserial.GetUserMemIndex();
for (int i = 0; i < Available; i++)
for(int i=0;i<Available;i++) {
{
testserial.SetSample(Index + i, i);
}
testserial.SetSample(Index+i,i);
}
} }
} }
testserial.stop(); testserial.stop();
@ -248,50 +231,48 @@ void SimpleTestSerial()
void SimpleTestAm(uint64_t Freq) void SimpleTestAm(uint64_t Freq)
{ {
FILE *audiofile=NULL; FILE *audiofile = NULL;
audiofile=fopen("../ssbaudio48.wav","rb"); audiofile = fopen("../ssbaudio48.wav", "rb");
if (audiofile==NULL) printf("input file issue\n"); if (audiofile == NULL)
printf("input file issue\n");
bool Stereo = true;
int SR = 48000;
int FifoSize = 512;
amdmasync amtest(Freq, SR, 14, FifoSize);
bool Stereo=true; short AudioBuffer[128 * 2];
int SR=48000;
int FifoSize=512;
amdmasync amtest(Freq,SR,14,FifoSize);
short AudioBuffer[128*2];
while(running) while (running)
{ {
//usleep(FifoSize*1000000.0*1.0/(8.0*SR)); //usleep(FifoSize*1000000.0*1.0/(8.0*SR));
usleep(100); usleep(100);
int Available=amtest.GetBufferAvailable(); int Available = amtest.GetBufferAvailable();
if(Available>256) if (Available > 256)
{ {
int Index=amtest.GetUserMemIndex(); int Index = amtest.GetUserMemIndex();
int nbread=fread(AudioBuffer,sizeof(short),128*2,audiofile); int nbread = fread(AudioBuffer, sizeof(short), 128 * 2, audiofile);
if(nbread>0) if (nbread > 0)
{ {
for(int i=0;i<nbread/2;i++) for (int i = 0; i < nbread / 2; i++)
{ {
if(!Stereo) if (!Stereo)
{ {
float x=((AudioBuffer[i*2]/32768.0)+(AudioBuffer[i*2+1]/32768.0))/4.0; float x = ((AudioBuffer[i * 2] / 32768.0) + (AudioBuffer[i * 2 + 1] / 32768.0)) / 4.0;
amtest.SetAmSample(Index+i,x); amtest.SetAmSample(Index + i, x);
} }
else else
{ {
float x=((AudioBuffer[i]/32768.0)/2.0)*8.0; float x = ((AudioBuffer[i] / 32768.0) / 2.0) * 8.0;
amtest.SetAmSample(Index+i,x); amtest.SetAmSample(Index + i, x);
} }
} }
} }
else else
{ {
printf("End of file\n"); printf("End of file\n");
fseek ( audiofile , 0 , SEEK_SET ); fseek(audiofile, 0, SEEK_SET);
//break; //break;
} }
} }
@ -301,70 +282,279 @@ void SimpleTestAm(uint64_t Freq)
void SimpleTestOOK(uint64_t Freq) void SimpleTestOOK(uint64_t Freq)
{ {
int SR=1000;
int FifoSize=21; //24
ookburst ook(Freq,SR,14,FifoSize);
unsigned char TabSymbol[FifoSize]={0,1,0,1,0,1,0,1,0,0,1,1,0,0,1,1,0,1,0,1,0}; int SR = 1000;
int FifoSize = 21; //24
/*for(size_t i=0;i<FifoSize;i++) ookburst ook(Freq, SR, 14, FifoSize);
unsigned char TabSymbol[FifoSize] = {0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0};
ook.SetSymbols(TabSymbol, FifoSize);
}
void SimpleTestOOKTiming(uint64_t Freq)
{
// 30ms max message
ookbursttiming ooksender(Freq, 300000);
ookbursttiming::SampleOOKTiming Message[100];
for (size_t i = 0; i < 100; i += 2)
{ {
TabSymbol[i]=i%2; Message[i].value = 1;
}*/ Message[i].duration = 50;
Message[i + 1].value = 0;
//while(running) Message[i + 1].duration = 2000;
}
ooksender.SendMessage(Message, 100);
}
uint8_t SetCRC8(uint8_t *addr)
{
char nibble[8];
for (size_t i = 0; i < 4; i++)
{ {
ook.SetSymbols(TabSymbol,FifoSize);
nibble[i * 2] = 0;
} nibble[i * 2 + 1] = 0;
for (int j = 0; j < 4; j++)
{
nibble[i * 2] |= addr[i * 8 + j] << (j);
nibble[i * 2 + 1] |= addr[i * 8 + j + 4] << (j);
}
fprintf(stderr, "nibble[%d]=%x\nnibble[%d]=%x\n", i * 2, nibble[i * 2], i * 2 + 1, nibble[i * 2 + 1]);
}
int8_t checksumcalc = 0;
if ((nibble[2] & 0x6) != 6)
{ // temperature packet
fprintf(stderr, "Temp\n");
checksumcalc = (0xf - nibble[0] - nibble[1] - nibble[2] - nibble[3] - nibble[4] - nibble[5] - nibble[6] - nibble[7]) & 0xf;
}
else
{
if ((nibble[3] & 0x7) == 3)
{ // Rain packet
fprintf(stderr, "Rain\n");
checksumcalc = (0x7 + nibble[0] + nibble[1] + nibble[2] + nibble[3] + nibble[4] + nibble[5] + nibble[6] + nibble[7]) & 0xf;
}
else
{ // Wind packet
fprintf(stderr, "wind\n");
checksumcalc = (0xf - nibble[0] - nibble[1] - nibble[2] - nibble[3] - nibble[4] - nibble[5] - nibble[6] - nibble[7]) & 0xf;
}
}
for (size_t i = 0; i < 4; i++)
{
addr[32 + i] = (checksumcalc >> (i)) & 1;
}
fprintf(stderr, "CRC=%x", checksumcalc);
return checksumcalc;
}
void AlectoOOK(uint64_t Freq)
{
// 30ms max message
ookbursttiming ooksender(Freq, 1200000);
ookbursttiming::SampleOOKTiming Message[50 * 6 * 2]; // 46 exactly * 6 times
ookbursttiming::SampleOOKTiming pulse;
pulse.value = 1;
pulse.duration = 450;//468
ookbursttiming::SampleOOKTiming Sync;
Sync.value = 0;
Sync.duration = 9000;//8956
ookbursttiming::SampleOOKTiming Zero;
Zero.value = 0;
Zero.duration = 2000;//2016
ookbursttiming::SampleOOKTiming One;
One.value = 0;
One.duration = 4000;
size_t n = 0;
//Widn average
unsigned char AlectoProtocol[] = {0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0};
// Wind gust direction
unsigned char AlectoProtocol1[] = {0, 0, 0, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
// Temperature
unsigned char AlectoProtocolT[] = {0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0};
//ID
/*AlectoProtocol[0]=1;
unsigned char LowBattery=0;
AlectoProtocol[8]=LowBattery;
AlectoProtocol[9]=1;//Wind
AlectoProtocol[10]=1;//Wind
*/
//AlectoProtocol[11] = 1; //Button generated
//AlectoProtocol[28] = 1; //Wind
//AlectoProtocol1[28] = 1; //Wind
//CheckSum n8 = ( 0xf - n0 - n1 - n2 - n3 - n4 - n5 - n6 - n7 ) & 0xf
for (size_t h = 0; h < 6; h++)
{
int direction = h*45;
for (size_t i = 0; i < 8; i++)
{
AlectoProtocol1[15 + i] = (direction >> (i)) & 0x1;
}
int Speed = h*10;
Speed=Speed/0.2;
for (size_t i = 0; i < 8; i++)
{
AlectoProtocol[24 + i] = (direction >> (i)) & 0x1;
AlectoProtocol1[24 + i] = (direction >> (i)) & 0x1;
}
SetCRC8(AlectoProtocol1);
SetCRC8(AlectoProtocol);
n=0;
for (size_t i = 0; i < 8; i++)
{
Message[n++] = pulse;
Message[n++] = One;
}
Message[n++] = pulse;
Message[n++] = Sync;
for (size_t k = 0; k < 6; k++)
{
for (size_t i = 0; i < 36; i++)
{
Message[n++] = pulse;
if (k % 2 == 0)
{
if (AlectoProtocol[i] == 0)
Message[n++] = Zero;
else
Message[n++] = One;
}
else
{
if (AlectoProtocol1[i] == 0)
Message[n++] = Zero;
else
Message[n++] = One;
}
//Message[n++]=(AlectoProtocol[i]==0)?Zero:One;
}
if (k < 5) // Not last one
{
for (size_t i = 0; i < 4; i++)
{
Message[n++] = pulse;
Message[n++] = Sync;
}
}
}
Message[n++] = pulse;
Message[n++] = Sync;
Message[n++] = pulse;
fprintf(stderr, "N=%d\n", n);
ooksender.SendMessage(Message, n);
sleep(10);
int Temperature = h * 100+200;
for (size_t i = 0; i < 12; i++)
{
AlectoProtocolT[12 + i] = (Temperature >> (i)) & 0x1;
}
//AlectoProtocolT[11] = 1;
//AlectoProtocolT[8] = 1;
SetCRC8(AlectoProtocolT);
fprintf(stderr, "Temperature sending\n");
n = 0;
for (size_t i = 0; i < 8; i++)
{
Message[n++] = pulse;
Message[n++] = One;
}
Message[n++] = pulse;
Message[n++] = Sync;
for (size_t k = 0; k < 6; k++)
{
for (size_t i = 0; i < 36; i++)
{
Message[n++] = pulse;
if (AlectoProtocolT[i] == 0)
Message[n++] = Zero;
else
Message[n++] = One;
}
if (k < 5) // Not last one
{
//for (size_t i = 0; i < 4; i++)
{
Message[n++] = pulse;
Message[n++] = Sync;
}
}
}
Message[n++] = pulse;
Message[n++] = Sync;
Message[n++] = pulse;
ooksender.SendMessage(Message, n);
//sleep(5);
sleep(20);
}
} }
void SimpleTestBurstFsk(uint64_t Freq) void SimpleTestBurstFsk(uint64_t Freq)
{ {
//int SR=40625; //int SR=40625;
int SR=1000; int SR = 1000;
float Deviation=2000; float Deviation = 2000;
int FifoSize=21; int FifoSize = 21;
fskburst fsktest(Freq,SR,Deviation,14,FifoSize); fskburst fsktest(Freq, SR, Deviation, 14, FifoSize);
unsigned char TabSymbol[FifoSize]={0,1,0,1,0,1,0,1,0,0,1,1,0,0,1,1,0,1,0,1,0}; unsigned char TabSymbol[FifoSize] = {0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0};
//while(running) //while(running)
{ {
fsktest.SetSymbols(TabSymbol,FifoSize); fsktest.SetSymbols(TabSymbol, FifoSize);
} }
fsktest.stop(); fsktest.stop();
} }
static void static void
terminate(int num) terminate(int num)
{ {
running=false; running = false;
fprintf(stderr,"Caught signal - Terminating\n"); fprintf(stderr, "Caught signal - Terminating\n");
} }
int main(int argc, char *argv[])
int main(int argc, char* argv[])
{ {
uint64_t Freq=144200000;
if(argc>1)
Freq=atof(argv[1]);
for (int i = 0; i < 64; i++) { uint64_t Freq = 144200000;
struct sigaction sa; if (argc > 1)
Freq = atof(argv[1]);
std::memset(&sa, 0, sizeof(sa)); for (int i = 0; i < 64; i++)
sa.sa_handler = terminate; {
sigaction(i, &sa, NULL); struct sigaction sa;
}
std::memset(&sa, 0, sizeof(sa));
sa.sa_handler = terminate;
sigaction(i, &sa, NULL);
}
//SimpleTest(Freq); //SimpleTest(Freq);
//SimpleTestbpsk(Freq); //SimpleTestbpsk(Freq);
@ -372,7 +562,7 @@ int main(int argc, char* argv[])
//SimpleTestDMA(Freq); //SimpleTestDMA(Freq);
//SimpleTestAm(Freq); //SimpleTestAm(Freq);
//SimpleTestOOK(Freq); //SimpleTestOOK(Freq);
SimpleTestBurstFsk(Freq); //SimpleTestBurstFsk(Freq);
//SimpleTestOOKTiming(Freq);
} AlectoOOK(Freq);
}

35
src/ookburst.cpp
View file

@ -132,8 +132,8 @@ This program is free software: you can redistribute it and/or modify
dma_cb_t *cbp=cbarray; dma_cb_t *cbp=cbarray;
cbp++; // Skip the first which is the Fiiling of Fifo cbp++; // Skip the first which is the Fiiling of Fifo
unsigned i=0;
for(i=0;i<Size;i++) for(unsigned i=0;i<Size;i++)
{ {
sampletab[i]=(Symbols[i]==0)?((Originfsel & ~(7 << 12)) | (0 << 12)):((Originfsel & ~(7 << 12)) | (4 << 12)); sampletab[i]=(Symbols[i]==0)?((Originfsel & ~(7 << 12)) | (0 << 12)):((Originfsel & ~(7 << 12)) | (4 << 12));
@ -162,3 +162,34 @@ This program is free software: you can redistribute it and/or modify
} }
//****************************** OOK BURST TIMING *****************************************
// SampleRate is set to 0.1MHZ,means 10us granularity, MaxMessageDuration in us
ookbursttiming::ookbursttiming(uint64_t TuneFrequency,size_t MaxMessageDuration):ookburst(TuneFrequency,1e5,14,MaxMessageDuration/10)
{
m_MaxMessage=MaxMessageDuration;
ookrenderbuffer=new unsigned char[m_MaxMessage];
}
ookbursttiming::~ookbursttiming()
{
if(ookrenderbuffer!=nullptr)
delete []ookrenderbuffer;
}
void ookbursttiming::SendMessage(SampleOOKTiming *TabSymbols,size_t Size)
{
size_t n=0;
for (size_t i=0;i<Size;i++)
{
for(size_t j=0;j<TabSymbols[i].duration/10;j++)
{
ookrenderbuffer[n++]=TabSymbols[i].value;
if(n>=m_MaxMessage)
{
fprintf(stderr,"OOK Message too long abort time(%d/%d)\n",n,m_MaxMessage);
return;
}
}
}
SetSymbols(ookrenderbuffer,n);
}

17
src/ookburst.h
View file

@ -20,4 +20,21 @@ class ookburst:public bufferdma,public clkgpio,public pwmgpio,public pcmgpio
void SetSymbols(unsigned char *Symbols,uint32_t Size); void SetSymbols(unsigned char *Symbols,uint32_t Size);
}; };
class ookbursttiming:public ookburst
{
protected:
unsigned char *ookrenderbuffer=nullptr;
size_t m_MaxMessage=0;
public:
typedef struct SampleOOKTiming
{
unsigned char value;
size_t duration;
} SampleOOKTiming;
ookbursttiming(uint64_t TuneFrequency,size_t MaxMessageDuration);
~ookbursttiming();
void SendMessage(SampleOOKTiming *TabSymbols,size_t Size);
};
#endif #endif