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grid in Linear mode only 5,1,1 and "load" command added

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tinySA-v0.2
erikkaashoek 6 years ago
parent c1c1681c29
commit 93a3c2f439
3 changed files with 120 additions and 57 deletions
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1
main.c
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@ -2275,6 +2275,7 @@ static const VNAShellCommand commands[] =
{ "rbw", cmd_rbw, 0 },
{ "mode", cmd_mode, 0 },
{ "spur", cmd_spur, 0 },
{ "load", cmd_load, 0 },
{ "selftest", cmd_selftest, 0 },
{ "x", cmd_x, 0 },
{ "y", cmd_y, 0 },

15
sa_cmd.c
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@ -68,6 +68,21 @@ VNA_SHELL_FUNCTION(cmd_spur)
goto usage;
}
VNA_SHELL_FUNCTION(cmd_load)
{
if (argc != 1) {
usage:
shell_printf("usage: load 0..4\r\n");
return;
}
int a = my_atoi(argv[0]);
if (0 <= a && a <= 4) {
caldata_recall(a);
} else
goto usage;
}
VNA_SHELL_FUNCTION(cmd_attenuate)
{
if (argc != 1) {

161
sa_core.c
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@ -215,27 +215,6 @@ void set_IF(int f)
dirty = true;
}
void set_unit(int u)
{
float r = to_dBm(setting.reflevel); // Get neutral unit
float s = to_dBm(setting.scale);
// float t = setting.trigger; // Is always in dBm
// float m = r - NGRIDSY*s;
setting.unit = u; // Switch unit
r = value(r); // Convert to target unit
s = value(s);
if (UNIT_IS_LINEAR(setting.unit)) {
set_reflevel(r);
set_scale(r/10.0);
} else {
r = 10 * round((r*1.2)/10.0);
set_scale(10);
}
dirty = true;
}
int GetMode(void)
{
return(setting.mode);
@ -488,40 +467,81 @@ int GetAGC(void)
return(setting.agc);
}
void set_unit(int u)
{
float r = to_dBm(setting.reflevel); // Get neutral unit
float s = to_dBm(setting.scale);
// float t = setting.trigger; // Is always in dBm
// float m = r - NGRIDSY*s;
setting.unit = u; // Switch unit
r = value(r); // Convert to target unit
s = value(s);
if (UNIT_IS_LINEAR(setting.unit)) {
if (r < 0.1)
r = 0.1; // Minimum value to ensure display
if (r >500)
r = 500; // Maximum value
set_reflevel(r);
set_scale(r/10.0);
} else {
r = 10 * round((r*1.2)/10.0);
set_scale(10);
}
dirty = true;
}
void set_reflevel(float level)
{
setting.reflevel = level;
set_trace_refpos(0, /* NGRIDY - */ level /* / get_trace_scale(0) */);
set_trace_refpos(1, /* NGRIDY - */ level /* / get_trace_scale(0) */ );
set_trace_refpos(2, /* NGRIDY - */ level /* / get_trace_scale(0) */ );
if (UNIT_IS_LINEAR(setting.unit)) { // Never negative bottom
if (level < 0.1)
level = 0.1;
float s = setting.scale;
if (level - NGRIDY * s < 0) {
level = level / NGRIDY;
setting.scale = level;
set_trace_scale(0, level);
set_trace_scale(1, level);
set_trace_scale(2, level);
set_scale(level/NGRIDY);
level = setting.scale * NGRIDY;
}
}
setting.reflevel = level;
set_trace_refpos(0, /* NGRIDY - */ level /* / get_trace_scale(0) */);
set_trace_refpos(1, /* NGRIDY - */ level /* / get_trace_scale(0) */ );
set_trace_refpos(2, /* NGRIDY - */ level /* / get_trace_scale(0) */ );
dirty = true;
}
void set_scale(float s) {
setting.scale = s;
set_trace_scale(0, s);
set_trace_scale(1, s);
set_trace_scale(2, s);
void set_scale(float t) {
if (UNIT_IS_LINEAR(setting.unit)) { // Never negative bottom
if (t < 0.01)
t = 0.01;
}
float m = 1;
// t = t * 1.2;
while (t > 10) { m *= 10; t/=10; }
while (t < 1.0) { m /= 10; t*=10; }
if (t>5)
t = 10.0;
else if (t>2)
t = 5.0;
else
t = 2.0;
t = t*m;
setting.scale = t;
set_trace_scale(0, t);
set_trace_scale(1, t);
set_trace_scale(2, t);
if (UNIT_IS_LINEAR(setting.unit)) { // Never negative bottom
float r = setting.reflevel;
s = NGRIDY * s;
if (s > r) {
setting.reflevel = s;
set_trace_refpos(0, s);
set_trace_refpos(1, s);
set_trace_refpos(2, s);
t = NGRIDY * t;
if (t > r) {
setting.reflevel = t;
set_trace_refpos(0, t);
set_trace_refpos(1, t);
set_trace_refpos(2, t);
}
}
@ -1419,15 +1439,25 @@ again:
}
if (!in_selftest && MODE_INPUT(setting.mode) && setting.auto_reflevel && max_index[0] > 0) { // Auto reflevel
if (UNIT_IS_LINEAR(setting.unit)) { // Linear scales can not have negative values
float t = value(actual_t[max_index[0]]);
if (t < setting.reflevel / 2 || t> setting.reflevel) {
float r = value(actual_t[max_index[0]]);
if ((setting.reflevel > 0.1 && r < setting.reflevel / 2 ) || (setting.reflevel < 500.0 && r > setting.reflevel) ) { // ensure minimum and maximum reflevel
float m = 1;
t = t * 1.2;
while (t > 10) { m *= 10; t/=10; }
while (t < 1) { m /= 10; t*=10; }
t = round(t);
set_scale(t*m / NGRIDY);
set_reflevel(t*m);
// t = t * 1.2;
while (r > 10) { m *= 10; r/=10; }
while (r < 1.0) { m /= 10; r*=10; }
if (r>5)
r = 10.0;
else if (r>2)
r = 5.0;
else
r = 2.0;
r = r*m;
if (r < 0.1)
r = 0.1;
if (r > 500.0)
r = 500.0;
set_scale(r / NGRIDY);
set_reflevel(r);
}
} else {
if (value(actual_t[max_index[0]]) > setting.reflevel - setting.scale/2) {
@ -1686,6 +1716,9 @@ float my_round(float v)
const char *unit_string[] = { "dBm", "dBmV", "dBuV", "mV", "uV", "mW", "uW" };
static const float scale_value[12]={50, 20,10,5,2,1,0.5,0.2,0.1,0.05,0.02,0.01};
static const char *scale_vtext[12]= {"50", "20","10","5","2","1","0.5","0.2","0.1","0.05","0.02","0.01"};
void draw_cal_status(void)
{
#define BLEN 10
@ -1713,9 +1746,9 @@ void draw_cal_status(void)
float yMax = setting.reflevel;
if (rounding)
plot_printf(buf, BLEN, "%d", (int)yMax);
plot_printf(buf, BLEN, "%5d", (int)yMax);
else
plot_printf(buf, BLEN, "%.2f", yMax);
plot_printf(buf, BLEN, "%5f", yMax);
buf[5]=0;
if (level_is_calibrated()) {
if (setting.auto_reflevel)
@ -1736,11 +1769,22 @@ void draw_cal_status(void)
color = DEFAULT_FG_COLOR;
ili9341_set_foreground(color);
y += YSTEP + YSTEP/2 ;
y += YSTEP + YSTEP/2;
unsigned int i = 0;
while (i < sizeof(scale_value)/sizeof(float)) {
float t = setting.scale / scale_value[i];;
if (t > 0.9 && t < 1.1){
plot_printf(buf, BLEN, "%s/",scale_vtext[i]);
break;
}
i++;
}
#if 0
if (rounding)
plot_printf(buf, BLEN, "%d/",(int)setting.scale);
plot_printf(buf, BLEN, "%4d/",(int)setting.scale);
else
plot_printf(buf, BLEN, "%.2f/",setting.scale);
plot_printf(buf, BLEN, "%4f/",setting.scale);
#endif
ili9341_drawstring(buf, x, y);
if (setting.auto_attenuation)
@ -1863,7 +1907,10 @@ void draw_cal_status(void)
ili9341_drawstring("TRIG:", x, y);
y += YSTEP;
plot_printf(buf, BLEN, "%ddBm",(int)setting.trigger_level);
if (rounding)
plot_printf(buf, BLEN, "%d", (int)value(setting.trigger_level));
else
plot_printf(buf, BLEN, "%.2f", value(setting.trigger_level));
buf[5]=0;
ili9341_drawstring(buf, x, y);
}
@ -1882,9 +1929,9 @@ void draw_cal_status(void)
y = HEIGHT-7 + OFFSETY;
if (rounding)
plot_printf(buf, BLEN, "%d", (int)(yMax - setting.scale * NGRIDY));
plot_printf(buf, BLEN, "%5d", (int)(yMax - setting.scale * NGRIDY));
else
plot_printf(buf, BLEN, "%.2f", (yMax - setting.scale * NGRIDY));
plot_printf(buf, BLEN, "%5f", (yMax - setting.scale * NGRIDY));
buf[5]=0;
if (level_is_calibrated())
if (setting.auto_reflevel)

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