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Updated calibration

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SI443_RBW_update
erikkaashoek 4 years ago
parent 795bc757a6
commit f24275fff8
1 changed files with 58 additions and 31 deletions
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87
sa_core.c
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@ -119,7 +119,7 @@ int actual_drive = -1;
#ifdef TINYSA4
#define SWITCH_ATTENUATION ((setting.mode == M_GENHIGH && config.high_out_adf4350) ? 40 : 25.0)
#define RECEIVE_SWITCH_ATTENUATION (29 - config.receive_switch_offset)
#define RECEIVE_SWITCH_ATTENUATION (29 + config.receive_switch_offset)
//#define POWER_OFFSET -18 // Max level with all enabled
//#define POWER_RANGE 70
#define MAX_DRIVE ((setting.mode == M_GENHIGH && config.high_out_adf4350 ) ? 3 : 18)
@ -139,7 +139,7 @@ int actual_drive = -1;
#endif
#else
#define SWITCH_ATTENUATION (29 - config.switch_offset)
#define RECEIVE_SWITCH_ATTENUATION (24 - config.receive_switch_offset)
#define RECEIVE_SWITCH_ATTENUATION (24 + config.receive_switch_offset)
#define POWER_OFFSET 15
#define MAX_DRIVE (setting.mode == M_GENHIGH ? 13 : 11) // The value of 13 is linked to the SL_GENHIGH_LEVEL_MAX of 9
#define MIN_DRIVE 8
@ -171,6 +171,7 @@ const freq_t fh_high[] = { 480000000, 960000000, 1920000000, 2880000000, 3840000
uint8_t in_selftest = false;
uint8_t in_step_test = false;
uint8_t in_calibration = false;
void update_min_max_freq(void)
{
@ -1147,21 +1148,24 @@ void set_actual_power(float o) // Set peak level to known value
{
if (!markers[0].index)
return;
float new_offset = o - measured[markers[0].trace][markers[0].index] + get_level_offset(); // offset based on difference between measured peak level and known peak level
float new_offset = o - measured[markers[0].trace][markers[0].index]; // offset based on difference between measured peak level and known peak level
if (o == 100) new_offset = 0;
if (setting.mode == M_HIGH) {
config.high_level_offset = new_offset;
config.high_level_offset += new_offset;
} else if (setting.mode == M_LOW) {
#ifdef TINYSA4
if (setting.extra_lna)
config.lna_level_offset = new_offset;
if (setting.spur_removal == S_ON && in_calibration) // measuring the shift offset
config.shift_level_offset += new_offset;
else if (setting.extra_lna)
config.lna_level_offset += new_offset;
else
#endif
{
if (setting.atten_step)
config.receive_switch_offset -= new_offset;
config.receive_switch_offset += new_offset;
else
config.low_level_offset = new_offset;
config.low_level_offset += new_offset;
}
}
dirty = true;
@ -3602,7 +3606,7 @@ again: // Spur redu
else
{
#ifdef TINYSA4
if (lf<4000000) { // below 4MHz
if (lf<2000000) { // below 2MHz
local_IF += DEFAULT_SPUR_OFFSET-(actual_rbw_x10 > 1000 ? 200000 : 0); // Shift to avoid zero Hz peak
LO_spur_shifted = true;
}
@ -4080,7 +4084,7 @@ again: // Spur redu
#ifdef __SI4463__
pureRSSI = Si446x_RSSI();
if (LO_shifting)
pureRSSI -= float_TO_PURE_RSSI(config.shift_level_offset);
pureRSSI += float_TO_PURE_RSSI(config.shift_level_offset);
#endif
if (break_on_operation && operation_requested) // allow aborting a wait for trigger
@ -4179,7 +4183,7 @@ again: // Spur redu
else {
pureRSSI = Si446x_RSSI();
if (LO_shifting)
pureRSSI -= float_TO_PURE_RSSI(config.shift_level_offset);
pureRSSI += float_TO_PURE_RSSI(config.shift_level_offset);
}
//#define __DEBUG_FREQUENCY_SETTING__
#ifdef __DEBUG_FREQUENCY_SETTING__ // For debugging the frequency calculation
@ -6746,13 +6750,19 @@ void calibrate_modulation(int modulation, int8_t *correction)
#define CALIBRATE_RBWS 1
const int power_rbw [5] = { 100, 300, 30, 10, 3 };
#ifdef TINYSA4
enum {CS_NORMAL, CS_LNA, CS_SWITCH, CS_SHIFT, CS_MAX };
#else
enum {CS_NORMAL, CS_SWITCH, CS_MAX };
#endif
void calibrate(void)
{
int local_test_status;
int old_sweep_points = setting._sweep_points;
#ifdef TINYSA4
setting.auto_IF = true;
setting.frequency_IF = config.frequency_IF1;
// setting.auto_IF = true; // set in selftest
// setting.frequency_IF = config.frequency_IF1; // set in selftest
setting.test_argument = -7;
self_test(0);
int if_error = peakFreq - 30000000;
@ -6764,10 +6774,13 @@ void calibrate(void)
}
#endif
reset_calibration();
#ifdef TINYSA4
bool calibrate_lna = false;
#endif
bool calibrate_switch = false;
in_calibration = true;
int calibration_stage = CS_NORMAL;
config.low_level_offset = 0;
config.high_level_offset = 0;
config.lna_level_offset = 0;
config.receive_switch_offset = 0;
config.shift_level_offset = -5;
again:
for (int k = 0; k<2; k++) {
for (int j= 0; j < CALIBRATE_RBWS; j++ ) {
@ -6782,14 +6795,32 @@ again:
set_sweep_frequency(ST_CENTER, 30000000);
set_sweep_frequency(ST_SPAN, 5000000);
setting.rbw_x10 = 3000;
setting.repeat = 10;
int test_case = TEST_POWER;
setting.atten_step = calibrate_switch;
// setting.atten_step = false;
//#ifdef TINYSA4
// set_extra_lna(false);
// setting.below_IF = S_AUTO_OFF;
//#endif
switch(calibration_stage) {
case CS_NORMAL:
break;
case CS_SWITCH:
setting.atten_step = true;
break;
#ifdef TINYSA4
if (!calibrate_switch)
set_extra_lna(calibrate_lna);
case CS_LNA:
set_extra_lna(true);
break;
case CS_SHIFT:
setting.below_IF = S_OFF;
setting.spur_removal = S_ON;
break;
#endif
}
set_average(0, AV_100);
for (int m=1; m<20; m++) {
for (int m=1; m<3; m++) {
test_acquire(test_case); // Acquire test
local_test_status = test_validate(test_case);
}
@ -6852,16 +6883,12 @@ again:
}
}
}
#ifdef TINYSA4
if (!calibrate_lna) {
calibrate_lna = true;
goto again;
}
#endif
if (!calibrate_switch) {
calibrate_switch = true;
calibration_stage++;
if (calibration_stage < CS_MAX)
goto again;
}
setting.below_IF = S_AUTO_OFF;
in_calibration = false;
#if 0 // No high input calibration as CAL OUTPUT is unreliable
set_RBW(100);

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