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tinySA/sa_core.c

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// ---------------------------------------------------
#include "SI4432.h" // comment out for simulation
#if 0
//-----------------SI4432 dummy------------------
void SI4432_Write_Byte(unsigned char ADR, unsigned char DATA ) {}
unsigned char SI4432_Read_Byte(unsigned char ADR) {return ADR;}
float SI4432_SET_RBW(float WISH) {return (WISH > 600.0?600: (WISH<3.0?3:WISH));}
void SI4432_SetReference(int p) {}
void SI4432_Set_Frequency(long f) {}
void PE4302_Write_Byte(unsigned char DATA ) {}
void PE4302_init(void) {}
#endif
#ifdef __SIMULATION__
unsigned long seed = 123456789;
extern float rbw;
float myfrand(void)
{
seed = (unsigned int) (1103515245 * seed + 12345) ;
return ((float) seed) / 1000000000.0;
}
#define NOISE ((myfrand()-2) * 2) // +/- 4 dBm noise
extern int settingAttenuate;
//#define LEVEL(i, f, v) (v * (1-(fabs(f - frequencies[i])/rbw/1000)))
float LEVEL(uint32_t i, uint32_t f, int v)
{
float dv;
float df = fabs((float)f - (float)i);
if (df < rbw*1000)
dv = df/(rbw*1000);
else
dv = 1 + 50*(df - rbw*1000)/(rbw*1000);
return (v - dv - settingAttenuate);
}
float Simulated_SI4432_RSSI(uint32_t i, int s)
{
SI4432_Sel = s;
float v = -100 + log10(rbw)*10 + NOISE;
if(s == 0) {
v = fmax(LEVEL(i,10000000,-20),v);
v = fmax(LEVEL(i,20000000,-40),v);
v = fmax(LEVEL(i,30000000,-30),v);
v = fmax(LEVEL(i,40000000,-90),v);
} else {
v = fmax(LEVEL(i,320000000,-20),v);
v = fmax(LEVEL(i,340000000,-40),v);
v = fmax(LEVEL(i,360000000,-30),v);
v = fmax(LEVEL(i,380000000,-90),v);
}
return(v);
}
#endif
//--------------------- Frequency control -----------------------
int dirty = true;
int scandirty = true;
//---------------- menu system -----------------------
int settingAttenuate = 0;
int settingGenerate = 0;
int settingBandwidth = 0;
//int settingLevelOffset = 0;
int settingRefer = 1;
int refferFreq[] = {30000000, 15000000, 10000000, 4000000, 3000000, 2000000, 1000000};
int settingSpur = 0;
int settingAverage = 0;
int settingShowStorage = 0;
int settingSubtractStorage = 0;
int settingMode = 0;
int settingDrive=0; // 0-3 , 3=+20dBm
int settingAGC = true;
int settingLNA = false;
int extraVFO = false;
int settingStepDelay = 0;
uint32_t minFreq = 0;
uint32_t maxFreq = 520000000;
void set_refer_output(int v)
{
settingRefer = v;
dirty = true;
}
int get_refer_output(void)
{
return(settingRefer);
}
void SetGenerate(int g)
{
settingGenerate = g;
dirty = true;
}
void SetDrive(int d)
{
settingDrive = d;
dirty = true;
}
void SetIF(int f)
{
frequency_IF = f;
dirty = true;
}
int GetMode(void)
{
return(settingMode);
dirty = true;
}
void SetMode(int m)
{
settingMode = m;
switch(m) {
case M_LOW:
case M_GENLOW:
minFreq = 0;
maxFreq = 520000000;
set_sweep_frequency(ST_START, (int32_t) 0);
set_sweep_frequency(ST_STOP, (int32_t) 300000000);
break;
case M_HIGH:
case M_GENHIGH:
minFreq = 260000000;
maxFreq = 960000000;
set_sweep_frequency(ST_START, (int32_t) 300000000);
set_sweep_frequency(ST_STOP, (int32_t) 960000000);
break;
}
dirty = true;
}
void SetAttenuation(int a)
{
settingAttenuate = a;
dirty = true;
}
void SetStorage(void)
{
for (int i=0; i<POINTS_COUNT;i++)
stored_t[i] = actual_t[i];
settingShowStorage = true;
trace[TRACE_STORED].enabled = true;
dirty = true;
}
int GetStorage(void)
{
return(settingShowStorage);
}
void SetClearStorage(void)
{
settingShowStorage = false;
settingSubtractStorage = false;
trace[TRACE_STORED].enabled = false;
dirty = true;
}
void SetSubtractStorage(void)
{
if (!settingSubtractStorage) {
if (!settingShowStorage)
SetStorage();
settingSubtractStorage = true;
} else {
settingSubtractStorage = false;
}
dirty = true;
}
int GetSubtractStorage(void)
{
return(settingSubtractStorage);
}
extern float peakLevel;
void SetPowerLevel(int o)
{
if (o != 100) {
if (settingMode & 1)
config.high_level_offset = o - peakLevel - settingAttenuate + settingLevelOffset();
else
config.low_level_offset = o - peakLevel - settingAttenuate + settingLevelOffset();
}
else {
config.low_level_offset = 0;
config.high_level_offset = 0;
}
dirty = true;
}
int settingLevelOffset(void)
{
if (settingMode & 1)
return(config.high_level_offset);
dirty = true;
return(config.low_level_offset);
}
void SetRBW(int v)
{
settingBandwidth = v;
update_rbw(frequencies[1] - frequencies[0]);
dirty = true;
}
int GetRBW(void)
{
return(settingBandwidth);
}
void SetSpur(int v)
{
settingSpur = v;
dirty = true;
}
void SetStepDelay(int d)
{
settingStepDelay = d;
dirty = true;
}
int GetSpur(void)
{
return(settingSpur);
}
void SetAverage(int v)
{
settingAverage = v;
trace[TRACE_TEMP].enabled = (v != 0);
dirty = true;
}
int GetAverage(void)
{
return(settingAverage);
}
void ToggleLNA(void)
{
settingLNA = !settingLNA;
dirty = true;
}
int GetLNA(void)
{
return(settingLNA);
}
void ToggleAGC(void)
{
settingAGC = !settingAGC;
dirty = true;
}
int GetAGC(void)
{
return(settingAGC);
}
//------------------------------------------
float peakLevel;
uint32_t peakFreq;
int peakIndex;
float temppeakLevel;
int temppeakIndex;
#define BARSTART 24
float rbw = 0;
float vbw = 0;
int vbwSteps = 1;
#if 0
int inData = 0;
unsigned long startFreq = 250000000;
unsigned long stopFreq = 300000000;
unsigned long lastFreq[6] = { 300000000, 300000000,0,0,0,0};
int lastParameter[10];
int parameter;
unsigned long reg = 0;
long offset=0;
long offset2=0;
static unsigned int spacing = 10000;
double delta=0.0;
int phase=0;
int deltaPhase;
int delaytime = 50;
#endif
#if 0
void displayHisto ()
{
// clearDisplay();
//int settingMax = 0;
//int settingMin = -120;
if (old_settingMax != settingMax || old_settingMin != settingMin) {
// Display levels at left of screen
tft.fillRect(0, 0, oX-2, tft.height(), DISPLAY_BLACK);
textWhite();
tft.setCursor(0,oY); // Start at top-left corner
tft.println(settingMax);
tft.setCursor(0,tft.height() - 16);
tft.println(settingMin);
// tft.setCursor(0,tft.height()/2);
// tft.println("dB");
old_settingMax = settingMax;
old_settingMin = settingMin;
}
if (old_startFreq != startFreq || old_stopFreq != stopFreq) {
// Dsiplay frequencies
// Bottom of screen
tft.fillRect(0, tft.height()-8, tft.width(), tft.height()-1, DISPLAY_BLACK);
tft.setTextColor(DISPLAY_WHITE); // Draw white text
tft.setCursor(oX+2,tft.height()-8); // Start at top-left corner
double f = (((double)(startFreq - lastFreq[0]))/ 1000000.0);
tft.print(f);
tft.print("MHz");
tft.setCursor(tft.width() - 58,tft.height()-8);
f = (((double)(stopFreq - lastFreq[0]))/ 1000000.0);
tft.print(f);
tft.print("MHz");
tft.setCursor(tft.width()/2 - 80 + oX,tft.height()-8);
tft.print("center:");
f = (double)((stopFreq/2 + startFreq/2 - lastFreq[0]) / 1000000.0);
tft.print(f);
tft.print("MHz");
old_startFreq = startFreq;
old_stopFreq = stopFreq;
}
// Top of screen
if (old_settingAttenuate != settingAttenuate || old_settingPowerGrid != settingPowerGrid) {
tft.fillRect(0, 0, 8*6, oY-2, DISPLAY_BLACK);
tft.setCursor(0,0); // Start at top-left corner
tft.setTextColor(DISPLAY_WHITE); // Draw white text
tft.print("Atten:");
tft.print(settingAttenuate);
tft.setCursor(0,8); // Start at top-left corner
tft.print(settingPowerGrid);
tft.print("dB/");
old_settingAttenuate = settingAttenuate;
old_settingPowerGrid = settingPowerGrid;
old_rbw = -1;
}
if (old_rbw != rbw || old_vbw != vbw) {
tft.fillRect(56, 0, 99, oY-2, DISPLAY_BLACK);
tft.setCursor(56,0); // Start at top-left corner
tft.setTextColor(DISPLAY_WHITE); // Draw white text
tft.print("RBW:");
tft.print(rbw);
tft.print("kHz");
tft.setCursor(56,8); // Start at top-left corner
tft.print("VBW:");
tft.print(vbw);
tft.print("kHz");
old_rbw = rbw;
old_vbw = vbw;
}
if (peakLevel > -150) {
tft.fillRect(oX+100, 0, 100, 8-1, DISPLAY_BLACK);
tft.setCursor(oX + 100,0); // Start at top-left corner
tft.setTextColor(DISPLAY_WHITE); // Draw white text
tft.print("Max=");
tft.print((int)((peakLevel/ 2.0 - settingAttenuate) - 120.0)+settingLevelOffset);
tft.print("dB, ");
tft.print(peakFreq/ 1000000.0);
tft.print("MHz");
}
if (old_settingAverage != settingAverage || abs(old_settingSpur) != abs(settingSpur)) {
int x = tft.width() - 60;
tft.fillRect( x, 0, 60, oY-2, DISPLAY_BLACK);
tft.setTextColor(DISPLAY_WHITE); // Draw white text
if (settingAverage) {
tft.setCursor( x,0); // Start at top-left corner
tft.print("AVR:");
tft.print(averageText[settingAverage]);
}
if (settingSpur) {
tft.setCursor(x,8); // Start at top-left corner
tft.print("SPUR:");
tft.print("ON");
}
old_settingAverage = settingAverage;
old_settingSpur = settingSpur;
}
/*
for (int i=0; i<DISPLAY_POINTS - 1; i++) {
int delta=settingMax - settingMin;
DrawCheckerBoard(i);
double f = ((actual_t[i] / 2.0 - settingAttenuate) - 120.0) + settingLevelOffset;
f = (f - settingMin) * Y_GRID * dY / delta;
if (f >= Y_GRID * dY) f = Y_GRID * dY-1;
if (f < 0) f = 0;
double f2 = ((actual_t[i+1] / 2.0 - settingAttenuate) - 120.0) + settingLevelOffset;
f2 = (f2 - settingMin) * Y_GRID * dY / delta;
if (f2 >= Y_GRID * dY) f2 = Y_GRID * dY-1;
if (f2 < 0) f2 = 0;
int x = i;
int Y1 = Y_GRID * dY - 1 - (int)f;
int Y2 = Y_GRID * dY - 1 - (int)f2;
tft.drawLine(x+oX, oY+Y1, x+oX+1, oY+Y2, DISPLAY_YELLOW);
// tft.drawLine(x+oX, oY+Y1+1, x+oX+1, oY+Y2, DISPLAY_YELLOW);
}
*/
sendDisplay();
}
void DisplayPoint(unsigned char *data, int i, int color)
{
if (i == 0)
return;
int x = i-1;
int delta=settingMax - settingMin;
double f = ((data[x] / 2.0 - settingAttenuate) - 120.0) + settingLevelOffset;
f = (f - settingMin) * Y_GRID * dY / delta;
if (f >= Y_GRID * dY) f = Y_GRID * dY-1;
if (f < 0) f = 0;
double f2 = ((data[x+1] / 2.0 - settingAttenuate) - 120.0) + settingLevelOffset;
f2 = (f2 - settingMin) * Y_GRID * dY / delta;
if (f2 >= Y_GRID * dY) f2 = Y_GRID * dY-1;
if (f2 < 0) f2 = 0;
int Y1 = Y_GRID * dY - 1 - (int)f;
int Y2 = Y_GRID * dY - 1 - (int)f2;
DrawDirty(x,min(Y2,Y1));
DrawDirty(x+1,min(Y2,Y1));
tft.drawLine(x+oX, oY+Y1, x+oX+1, oY+Y2, color);
// tft.drawLine(x+oX, oY+Y1+1, x+oX+1, oY+Y2, DISPLAY_YELLOW);
sendDisplay();
}
void DisplayPeakData(void)
{
double f = ((((float)actual_t[peakIndex]) / 2.0 - settingAttenuate) - 120.0) + settingLevelOffset;
int delta=settingMax - settingMin;
f = (f - settingMin) * Y_GRID * dY / delta;
if (f >= Y_GRID * dY) f = Y_GRID * dY-1;
if (f < 0) f = 0;
int Y1 = Y_GRID * dY - 1 - (int)f;
tft.setCursor(oX+peakIndex+5,oY+Y1); // Start at top-left corner
tft.setTextColor(DISPLAY_WHITE); // Draw white text
tft.print(peakFreq/ 1000000.0);
tft.setCursor(oX+peakIndex+5,oY+Y1+8); // Start at top-left corner
tft.print((int)((peakLevel/ 2.0 - settingAttenuate) - 120.0)+settingLevelOffset);
tft.print("dB");
for (int x=peakIndex+5;x<peakIndex+5+6*8;x++)
DrawDirty(x,Y1);
}
#endif
void setupSA(void)
{
SI4432_Init();
PE4302_init();
PE4302_Write_Byte(0);
}
void setFreq(int V, unsigned long freq)
{
if (V>=0) {
SI4432_Sel = V;
#ifdef USE_SI4463
if (SI4432_Sel == 2) {
freq = freq - 433000000;
freq = freq / 10000; //convert to 10kHz channel starting with 433MHz
// Serial.print("Set frequency Si4463 = ");
// Serial.println(freq);
Si446x_RX ((uint8_t)freq);
}
else
#endif
SI4432_Set_Frequency(freq);
}
}
void SetSwitchTransmit(void) {
SI4432_Write_Byte(0x0b, 0x1f);// Set switch to transmit
SI4432_Write_Byte(0x0c, 0x1d);
}
void SetSwitchReceive(void) {
SI4432_Write_Byte(0x0b, 0x1d);// Set switch to receive
SI4432_Write_Byte(0x0c, 0x1f);
}
void SetAGCLNA(void) {
unsigned char v = 0x40;
if (settingAGC) v |= 0x20;
if (settingLNA) v |= 0x10;
SI4432_Write_Byte(0x69, v);
}
void SetRX(int m)
{
switch(m) {
case M_LOW: // Mixed into 0
SI4432_Sel = 0;
SI4432_Receive();
SetSwitchReceive();
SetAGCLNA();
SI4432_Sel = 1;
SetSwitchReceive();
// SI4432_Receive(); For noise testing only
SI4432_Transmit(settingDrive);
// SI4432_SetReference(settingRefer);
break;
case M_HIGH: // Direct into 1
// SI4432_SetReference(-1); // Stop reference output
SI4432_Sel = 0; // both as receiver to avoid spurs
SetSwitchReceive();
SI4432_Receive();
SI4432_Sel = 1;
SI4432_Receive();
SetSwitchReceive();
SetAGCLNA();
break;
case M_GENLOW: // Mixed output from 0
SI4432_Sel = 0;
SetSwitchTransmit();
SI4432_Transmit(settingDrive);
SI4432_Sel = 1;
SetSwitchReceive();
SI4432_Transmit(settingDrive);
break;
case M_GENHIGH: // Direct output from 1
SI4432_Sel = 0;
SI4432_Receive();
SetSwitchReceive();
SI4432_Sel = 1;
SetSwitchTransmit();
SI4432_Transmit(settingDrive);
break;
}
}
void update_rbw(uint32_t delta_f)
{
vbw = (delta_f)/1000.0;
rbw = settingBandwidth;
// float old_rbw = rbw;
if (rbw == 0)
rbw = 2*vbw;
if (rbw < 2.6)
rbw = 2.6;
if (rbw > 600)
rbw = 600;
SI4432_Sel = (settingMode & 1);
rbw = SI4432_SET_RBW(rbw);
vbwSteps = ((int)(2 * vbw / rbw));
if (vbwSteps < 1)
vbwSteps = 1;
dirty = true;
}
static int old_lf = -1;
float perform(bool break_on_operation, int i, int32_t f, int extraV)
{
long local_IF = ((settingMode & 1) == 0?frequency_IF + (int)(rbw < 300.0?settingSpur * 1000 * rbw :0):0);
if (i == 0 && dirty) {
if (settingStepDelay == 0){
if (rbw < 10.0)
actualStepDelay = 2500;
else if (rbw <30.0)
actualStepDelay = 2000;
else if (rbw <100.0)
actualStepDelay = 1000;
else
actualStepDelay = 500;
} else
actualStepDelay = settingStepDelay;
// setupSA();
int p = settingAttenuate * 2;
PE4302_Write_Byte(p);
SetRX(settingMode);
SI4432_SetReference(settingRefer);
temppeakLevel = -150;
if (local_IF)
setFreq (0, local_IF);
// if (dirty) {
scandirty = true;
dirty = false;
// }
}
volatile int subSteps = ((int)(2 * vbw / rbw));
float RSSI = -150.0;
int t = 0;
do {
int lf = (uint32_t)(f + (int)(t * 500 * rbw));
if (extraV)
setFreq (0, local_IF + lf - refferFreq[settingRefer]); // Offset so fundamental of reffer is visible
if (lf != old_lf) // only set on change
setFreq (1, local_IF + lf);
old_lf = lf;
float subRSSI = SI4432_RSSI(lf, (settingMode & 1))+settingLevelOffset()+settingAttenuate;
if (RSSI < subRSSI)
RSSI = subRSSI;
t++;
if ((operation_requested && break_on_operation ) || (settingMode & 2 )) // output modes do not step.
subSteps = 0; // abort
} while (subSteps-- > 0);
return(RSSI);
}
// main loop for measurement
static bool sweep(bool break_on_operation)
{
float RSSI;
palClearPad(GPIOC, GPIOC_LED);
for (int i = 0; i < sweep_points; i++) {
again:
RSSI = perform(break_on_operation, i, frequencies[i], extraVFO);
if (settingSpur == 1)
temp_t[i] = RSSI;
else
{
if (settingSpur == -1)
RSSI = ( RSSI < temp_t[i] ? RSSI : temp_t[i]);
temp_t[i] = RSSI;
if (settingSubtractStorage) {
RSSI = RSSI - stored_t[i] ;
}
// stored_t[i] = (SI4432_Read_Byte(0x69) & 0x0f) * 3.0 - 90.0; // Display the AGC value in thestored trace
if (scandirty || settingAverage == AV_OFF)
actual_t[i] = RSSI;
else {
switch(settingAverage) {
case AV_MIN: if (actual_t[i] > RSSI) actual_t[i] = RSSI; break;
case AV_MAX: if (actual_t[i] < RSSI) actual_t[i] = RSSI; break;
case AV_2: actual_t[i] = (actual_t[i] + RSSI) / 2.0; break;
case AV_4: actual_t[i] = (actual_t[i]*3 + RSSI) / 4.0; break;
case AV_8: actual_t[i] = (actual_t[i]*7 + RSSI) / 8.0; break;
}
}
if (frequencies[i] > 1000000) {
if (temppeakLevel < actual_t[i]) {
temppeakIndex = i;
temppeakLevel = actual_t[i];
}
}
}
if (i == sweep_points -1) {
if (settingSpur == 1) {
settingSpur = -1;
i = 0;
goto again;
}
if (scandirty) {
scandirty = false;
}
peakIndex = temppeakIndex;
peakLevel = actual_t[peakIndex];
peakFreq = frequencies[peakIndex];
settingSpur = -settingSpur;
int peak_marker = 0;
markers[peak_marker].enabled = true;
markers[peak_marker].index = peakIndex;
markers[peak_marker].frequency = frequencies[markers[peak_marker].index];
// redraw_marker(peak_marker, FALSE);
}
// back to toplevel to handle ui operation
if (operation_requested && break_on_operation)
return false;
}
palSetPad(GPIOC, GPIOC_LED);
return true;
}
#if 0
void PeakSearch()
{
#define PEAKSTACK 4
#define PEAKDISTANCE 10
int level = 0;
int searchLeft[PEAKSTACK];
int peakIndex[PEAKSTACK];
int peak_marker = 0;
searchLeft[level] = true;
peakIndex[level] = markers[peak_marker].index;
level++;
searchLeft[level] = true;
int peakFrom;
int peakTo;
while (peak_marker < 4){
if (searchLeft[level])
{
int fromLevel = level;
while (fromLevel > 0 && searchLeft[fromLevel])
fromLevel--
if(fromLevel == 0) {
peakFrom = PEAKDISTANCE;
} else {
peakFrom = peakIndex[fromLevel] + PEAKDISTANCE;
}
peakTo = peakIndex[level] - PEAKDISTANCE;
} else {
int toLevel = level;
while (toLevel > 0 && !searchLeft[toLevel])
toLevel--
if(toLevel == 0) {
peakTo = POINTS_COUNT - 1 - PEAKDISTANCE;
} else {
peakTo = peakIndex[fromLevel] - PEAKDISTANCE;
}
peakFrom = peakIndex[level] + PEAKDISTANCE;
}
float peakMax = actual_t[peakFrom];
int peakIndex = peakFrom;
for (int i = peakFrom; i < peakTo; i++) {
if (peakMax < actual_t[i]) {
peakMax = actual_t[i];
peakIndex = i;
}
}
peakIndex = temppeakIndex;
peakLevel = actual_t[peakIndex];
peakFreq = frequencies[peakIndex];
settingSpur = -settingSpur;
int peak_marker = 0;
markers[peak_marker].enabled = true;
markers[peak_marker].index = peakIndex;
markers[peak_marker].frequency = frequencies[markers[peak_marker].index];
// redraw_marker(peak_marker, FALSE);
}
}
#endif
char *averageText[] = { "OFF", "MIN", "MAX", "2", "4", "8"};
char *dBText[] = { "1dB/", "2dB/", "5dB/", "10dB/", "20dB/"};
int refMHz[] = { 30, 15, 10, 4, 3, 2, 1 };
void draw_cal_status(void)
{
#define BLEN 10
char buf[BLEN];
#define YSTEP 8
int x = 0;
int y = OFFSETY;
unsigned int color;
#define XSTEP 40
// if (!sweep_enabled)
// perform(true, 0, frequencies[0], false);
ili9341_fill(x, y, OFFSETX, HEIGHT, 0x0000);
ili9341_set_background(DEFAULT_BG_COLOR);
int yMax = (NGRIDY - get_trace_refpos(0)) * get_trace_scale(0);
plot_printf(buf, BLEN, "%ddB", yMax);
buf[5]=0;
ili9341_set_foreground(DEFAULT_FG_COLOR);
ili9341_drawstring(buf, x, y);
y += YSTEP*2;
plot_printf(buf, BLEN, "%ddB/",(int)get_trace_scale(0));
ili9341_drawstring(buf, x, y);
if (settingAttenuate) {
ili9341_set_foreground(BRIGHT_COLOR_GREEN);
y += YSTEP*2;
ili9341_drawstring("Attn:", x, y);
y += YSTEP;
plot_printf(buf, BLEN, "-%ddB", settingAttenuate);
buf[5]=0;
ili9341_drawstring(buf, x, y);
}
if (settingAverage>0) {
ili9341_set_foreground(BRIGHT_COLOR_BLUE);
y += YSTEP*2;
ili9341_drawstring("Aver:", x, y);
y += YSTEP;
plot_printf(buf, BLEN, "%s",averageText[settingAverage]);
buf[5]=0;
ili9341_drawstring(buf, x, y);
}
if (settingSpur) {
ili9341_set_foreground(BRIGHT_COLOR_BLUE);
y += YSTEP*2;
ili9341_drawstring("Spur:", x, y);
y += YSTEP;
plot_printf(buf, BLEN, "ON");
ili9341_drawstring(buf, x, y);
}
if (settingBandwidth)
color = BRIGHT_COLOR_GREEN;
else
color = DEFAULT_FG_COLOR;
ili9341_set_foreground(color);
y += YSTEP*2;
ili9341_drawstring("RBW:", x, y);
y += YSTEP;
plot_printf(buf, BLEN, "%dkHz", (int)rbw);
buf[5]=0;
ili9341_drawstring(buf, x, y);
ili9341_set_foreground(DEFAULT_FG_COLOR);
y += YSTEP*2;
ili9341_drawstring("VBW:", x, y);
y += YSTEP;
plot_printf(buf, BLEN, "%dkHz",(int)vbw);
buf[5]=0;
ili9341_drawstring(buf, x, y);
y += YSTEP*2;
ili9341_drawstring("Scan:", x, y);
y += YSTEP;
int32_t t = (int)((2* vbwSteps * sweep_points * ( actualStepDelay / 100) )) /10 * (settingSpur ? 2 : 1); // in mS
if (t>1000)
plot_printf(buf, BLEN, "%dS",(t+500)/1000);
else
plot_printf(buf, BLEN, "%dmS",t);
buf[5]=0;
ili9341_drawstring(buf, x, y);
if (settingRefer >= 0) {
ili9341_set_foreground(BRIGHT_COLOR_RED);
y += YSTEP*2;
ili9341_drawstring("Ref:", x, y);
y += YSTEP;
plot_printf(buf, BLEN, "%dMHz",refMHz[settingRefer]);
buf[5]=0;
ili9341_drawstring(buf, x, y);
}
y = HEIGHT-7 + OFFSETY;
plot_printf(buf, BLEN, "%ddB", (int)(yMax - get_trace_scale(0) * NGRIDY));
buf[5]=0;
ili9341_set_foreground(DEFAULT_FG_COLOR);
ili9341_drawstring(buf, x, y);
}
// -------------------- Self testing -------------------------------------------------
enum {
TC_SIGNAL, TC_BELOW, TC_ABOVE, TC_FLAT
};
enum {
TP_SILENT, TP_10MHZ, TP_10MHZEXTRA, TP_30MHZ
};
#define TEST_COUNT 7
static const struct {
int kind;
int setup;
uint32_t center; // In MHz
int span; // In MHz
float pass;
int width;
float stop;
} test_case [TEST_COUNT] =
{// Condition Preparation Center Span Pass Width Stop
{TC_SIGNAL, TP_10MHZ, 10, 7, -30, 30, -85 },
{TC_SIGNAL, TP_10MHZ, 20, 7, -50, 30, -90 },
{TC_SIGNAL, TP_10MHZ, 30, 7, -40, 30, -90 },
{TC_BELOW, TP_SILENT, 200, 100, -80, 0, 0},
{TC_SIGNAL, TP_10MHZEXTRA, 10, 8, -30, 50, -80 },
{TC_FLAT, TP_10MHZEXTRA, 10, 4, -35, 20, -80},
{TC_SIGNAL, TP_30MHZ, 360, 18, -70, 20, -100 },
};
enum {
TS_WAITING, TS_PASS, TS_FAIL, TS_CRITICAL
};
static const char *(test_text [4]) =
{
"Waiting", "Pass", "Fail", "Critical"
};
static const char *(test_fail_cause [TEST_COUNT]);
static int test_status[TEST_COUNT];
static int show_test_info = FALSE;
static volatile int test_wait = false;
static void test_acquire(int i)
{
pause_sweep();
if (test_case[i].center < 300)
settingMode = 0;
else
settingMode = 1;
set_sweep_frequency(ST_CENTER, (int32_t)test_case[i].center * 1000000);
set_sweep_frequency(ST_SPAN, (int32_t)test_case[i].span * 1000000);
sweep(false);
plot_into_index(measured);
redraw_request |= REDRAW_CELLS | REDRAW_FREQUENCY;
}
extern void cell_drawstring_5x7(int w, int h, char *str, int x, int y, uint16_t fg);
extern void cell_drawstring_7x13(int w, int h, char *str, int x, int y, uint16_t fg);
void cell_drawstring(char *str, int x, int y);
static char self_test_status_buf[35];
void cell_draw_test_info(int x0, int y0)
{
#define INFO_SPACING 13
// char self_test_status_buf[35];
if (!show_test_info)
return;
for (int i = -1; i < TEST_COUNT+1; i++) {
int xpos = 25 - x0;
int ypos = 40+i*INFO_SPACING - y0;
unsigned int color = RGBHEX(0xFFFFFF);
if (i == -1) {
plot_printf(self_test_status_buf, sizeof self_test_status_buf, "Self test status:");
} else if (i == TEST_COUNT) {
if (test_wait)
plot_printf(self_test_status_buf, sizeof self_test_status_buf, "Touch screen to continue");
else
self_test_status_buf[0] = 0;
} else {
plot_printf(self_test_status_buf, sizeof self_test_status_buf, "Test %d: %s%s", i+1, test_fail_cause[i], test_text[test_status[i]] );
if (test_status[i] == TS_PASS)
color = RGBHEX(0x00FF00);
else if (test_status[i] == TS_CRITICAL)
color = RGBHEX(0xFFFF00);
else if (test_status[i] == TS_FAIL)
color = RGBHEX(0xFF7F7F);
else
color = RGBHEX(0x0000FF);
}
ili9341_set_foreground(color);
cell_drawstring(self_test_status_buf, xpos, ypos);
}
}
#define fabs(X) ((X)<0?-(X):(X))
int validate_peak_within(int i, float margin)
{
if (fabs(peakLevel-test_case[i].pass) > margin)
return false;
return(test_case[i].center * 1000000 - 100000 < peakFreq && peakFreq < test_case[i].center * 1000000 + 100000 );
}
int validate_peak_below(int i, float margin) {
return(test_case[i].pass - peakLevel > margin);
}
int validate_below(void) {
int status = TS_PASS;
for (int j = 0; j < POINTS_COUNT; j++) {
if (actual_t[j] > stored_t[j] - 5)
status = TS_CRITICAL;
else if (actual_t[j] > stored_t[j]) {
status = TS_FAIL;
break;
}
}
return(status);
}
int validate_flatness(int i) {
volatile int j;
for (j = peakIndex; j < POINTS_COUNT; j++) {
if (actual_t[j] < peakLevel - 3) // Search right -3dB
break;
}
if (j - peakIndex < test_case[i].width)
return(TS_FAIL);
for (j = peakIndex; j > 0; j--) {
if (actual_t[j] < peakLevel - 3) // Search left -3dB
break;
}
if (peakIndex - j < test_case[i].width)
return(TS_FAIL);
return(TS_PASS);
}
int validate_above(void) {
int status = TS_PASS;
for (int j = 0; j < POINTS_COUNT; j++) {
if (actual_t[j] < stored_t[j] + 5)
status = TS_CRITICAL;
else if (actual_t[j] < stored_t[j]) {
status = TS_FAIL;
break;
}
}
return(status);
}
void test_validate(int i)
{
if (test_case[i].kind == TC_SIGNAL) { // Validate signal
if (validate_peak_within(i, 5.0)) // Validate Peak
test_status[i] = TS_PASS;
else if (validate_peak_within(i, 10.0))
test_status[i] = TS_CRITICAL;
else
test_status[i] = TS_FAIL;
if (test_status[i] != TS_PASS)
test_fail_cause[i] = "Peak ";
if (test_status[i] == TS_PASS) { // Validate noise floor
for (int j = 0; j < POINTS_COUNT/2 - test_case[i].width; j++) {
if (actual_t[j] > test_case[i].stop - 5)
test_status[i] = TS_CRITICAL;
else if (actual_t[j] > test_case[i].stop) {
test_status[i] = TS_FAIL;
break;
}
}
for (int j = POINTS_COUNT/2 + test_case[i].width; j < POINTS_COUNT; j++) {
if (actual_t[j] > test_case[i].stop - 5)
test_status[i] = TS_CRITICAL;
else if (actual_t[j] > test_case[i].stop) {
test_status[i] = TS_FAIL;
break;
}
}
if (test_status[i] != TS_PASS)
test_fail_cause[i] = "Stopband ";
}
} else if (test_case[i].kind == TC_ABOVE) { // Validate signal above curve
for (int j = 0; j < POINTS_COUNT; j++) {
if (actual_t[j] < test_case[i].pass + 5)
test_status[i] = TS_CRITICAL;
else if (actual_t[j] < test_case[i].pass) {
test_status[i] = TS_FAIL;
break;
}
}
if (test_status[i] != TS_PASS)
test_fail_cause[i] = "Above ";
} else if (test_case[i].kind == TC_BELOW) { // Validate signal below curve
if (validate_peak_below(i, 10.0))
test_status[i] = TS_PASS;
else if (validate_peak_below(i, 5.0))
test_status[i] = TS_CRITICAL;
else
test_status[i] = TS_FAIL;
if (test_status[i] != TS_PASS)
test_fail_cause[i] = "Above ";
} else if (test_case[i].kind == TC_FLAT) { // Validate passband flatness
test_status[i] = validate_flatness(i);
if (test_status[i] != TS_PASS)
test_fail_cause[i] = "Passband ";
}
// Report status
if (test_status[i] != TS_PASS || i == TEST_COUNT - 1)
test_wait = true;
draw_all(TRUE);
resume_sweep();
}
extern void menu_autosettings_cb(int item);
extern void touch_wait_release(void);
void self_test(void)
{
menu_autosettings_cb(0);
for (int i=0; i < TEST_COUNT; i++) { // All test cases waiting
test_status[i] = TS_WAITING;
test_fail_cause[i] = "";
}
show_test_info = TRUE;
for (int i=0; i < TEST_COUNT; i++) {
extraVFO = false; //Default test setup
switch(test_case[i].setup) { // Prepare test conditions
case TP_SILENT: // No input signal
set_refer_output(-1);
for (int j = 0; j < POINTS_COUNT; j++)
stored_t[j] = test_case[i].pass;
break;
case TP_10MHZEXTRA: // Swept receiver
extraVFO = true; //Sweep BPF
goto common;
case TP_10MHZ: // 10MHz input
common:
set_refer_output(2);
int j;
for (j = 0; j < POINTS_COUNT/2 - test_case[i].width; j++)
stored_t[j] = test_case[i].stop;
for (j = POINTS_COUNT/2 + test_case[i].width; j < POINTS_COUNT; j++)
stored_t[j] = test_case[i].stop;
for (j = POINTS_COUNT/2 - test_case[i].width; j < POINTS_COUNT/2 + test_case[i].width; j++)
stored_t[j] = test_case[i].pass;
break;
case TP_30MHZ:
set_refer_output(0);
goto common;
}
trace[TRACE_STORED].enabled = true;
set_trace_refpos(0, NGRIDY - (test_case[i].pass + 30) / get_trace_scale(0));
set_trace_refpos(1, NGRIDY - (test_case[i].pass + 30) / get_trace_scale(0));
set_trace_refpos(2, NGRIDY - (test_case[i].pass + 30) / get_trace_scale(0));
draw_cal_status();
test_acquire(i); // Acquire test
test_validate(i); // Validate test
chThdSleepMilliseconds(2000);
if (test_status[i] != TS_PASS) {
touch_wait_release();
}
}
touch_wait_release();
// chThdSleepMilliseconds(2000);
show_test_info = FALSE;
trace[TRACE_STORED].enabled = false;
set_trace_refpos(0, NGRIDY - (-10) / get_trace_scale(0));
set_trace_refpos(1, NGRIDY - (-10) / get_trace_scale(0));
set_trace_refpos(2, NGRIDY - (-10) / get_trace_scale(0));
set_refer_output(0);
settingMode = 0;
draw_cal_status();
menu_autosettings_cb(0);
}
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