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main.c
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main.c
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/*
* Copyright (c) 2019-2023, Dmitry (DiSlord) dislordlive@gmail.com
* Based on TAKAHASHI Tomohiro (TTRFTECH) edy555@gmail.com
* All rights reserved.
*
* This is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* The software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "ch.h"
#include "hal.h"
#include "usbcfg.h"
#include "si5351.h"
#include "nanovna.h"
#include <chprintf.h>
#include <string.h>
/*
* Shell settings
*/
// If need run shell as thread (use more amount of memory fore stack), after
// enable this need reduce spi_buffer size, by default shell run in main thread
// #define VNA_SHELL_THREAD
static BaseSequentialStream *shell_stream = 0;
threads_queue_t shell_thread;
// Shell new line
#define VNA_SHELL_NEWLINE_STR "\r\n"
// Shell command promt
#define VNA_SHELL_PROMPT_STR "ch> "
// Shell max arguments
#define VNA_SHELL_MAX_ARGUMENTS 4
// Shell max command line size
#define VNA_SHELL_MAX_LENGTH 64
// Shell frequency printf format
//#define VNA_FREQ_FMT_STR "%lu"
#define VNA_FREQ_FMT_STR "%u"
// Shell command functions prototypes
typedef void (*vna_shellcmd_t)(int argc, char *argv[]);
#define VNA_SHELL_FUNCTION(command_name) \
static void command_name(int argc, char *argv[])
// Shell command line buffer, args, nargs, and function ptr
static char shell_line[VNA_SHELL_MAX_LENGTH];
static char *shell_args[VNA_SHELL_MAX_ARGUMENTS + 1];
static uint16_t shell_nargs;
static volatile vna_shellcmd_t shell_function = 0;
#define ENABLED_DUMP_COMMAND
// Allow get threads debug info
//#define ENABLE_THREADS_COMMAND
// Enable vbat_offset command, allow change battery voltage correction in config
#define ENABLE_VBAT_OFFSET_COMMAND
// Info about NanoVNA, need fore soft
#define ENABLE_INFO_COMMAND
// Enable color command, allow change config color for traces, grid, menu
#define ENABLE_COLOR_COMMAND
// Enable transform command
#define ENABLE_TRANSFORM_COMMAND
// Enable sample command
//#define ENABLE_SAMPLE_COMMAND
// Enable I2C command for send data to AIC3204, used for debug
//#define ENABLE_I2C_COMMAND
// Enable LCD command for send data to LCD screen, used for debug
//#define ENABLE_LCD_COMMAND
// Enable output debug data on screen on hard fault
//#define ENABLE_HARD_FAULT_HANDLER_DEBUG
// Enable test command, used for debug
//#define ENABLE_TEST_COMMAND
// Enable stat command, used for debug
//#define ENABLE_STAT_COMMAND
// Enable gain command, used for debug
//#define ENABLE_GAIN_COMMAND
// Enable port command, used for debug
//#define ENABLE_PORT_COMMAND
// Enable si5351 register write, used for debug
//#define ENABLE_SI5351_REG_WRITE
// Enable i2c timing command, used for debug
//#define ENABLE_I2C_TIMINGS
// Enable band setting command, used for debug
//#define ENABLE_BAND_COMMAND
// Enable scan_bin command (need use ex scan in future)
#define ENABLE_SCANBIN_COMMAND
// Enable debug for console command
//#define DEBUG_CONSOLE_SHOW
// Enable usart command
#define ENABLE_USART_COMMAND
// Enable config command
#define ENABLE_CONFIG_COMMAND
#ifdef __USE_SD_CARD__
// Enable SD card console command
#define ENABLE_SD_CARD_COMMAND
#endif
static void apply_CH0_error_term(float data[4], float c_data[CAL_TYPE_COUNT][2]);
static void apply_CH1_error_term(float data[4], float c_data[CAL_TYPE_COUNT][2]);
static void cal_interpolate(int idx, freq_t f, float data[CAL_TYPE_COUNT][2]);
static uint16_t get_sweep_mask(void);
static void update_frequencies(void);
static int set_frequency(freq_t freq);
static void set_frequencies(freq_t start, freq_t stop, uint16_t points);
static bool sweep(bool break_on_operation, uint16_t ch_mask);
static void transform_domain(uint16_t ch_mask);
uint8_t sweep_mode = SWEEP_ENABLE;
// current sweep point (used for continue sweep if user break)
static uint16_t p_sweep = 0;
// Sweep measured data
float measured[2][SWEEP_POINTS_MAX][2];
#undef VERSION
#define VERSION "1.2.36"
// Version text, displayed in Config->Version menu, also send by info command
const char *info_about[]={
"Board: " BOARD_NAME,
"2019-2023 Copyright @DiSlord (based on @edy555 source)",
"Licensed under GPL.",
" https://github.com/DiSlord/NanoVNA-D",
"Donate support:",
// " https://paypal.me/DiSlord",
" WebMoney: Z313822869119",
"Version: " VERSION " ["\
"p:"define_to_STR(SWEEP_POINTS_MAX)", "\
"IF:"define_to_STR(FREQUENCY_IF_K)"k, "\
"ADC:"define_to_STR(AUDIO_ADC_FREQ_K1)"k, "\
"Lcd:"define_to_STR(LCD_WIDTH)"x"define_to_STR(LCD_HEIGHT)\
"]", "Build Time: " __DATE__ " - " __TIME__,
// "Kernel: " CH_KERNEL_VERSION,
// "Compiler: " PORT_COMPILER_NAME,
"Architecture: " PORT_ARCHITECTURE_NAME " Core Variant: " PORT_CORE_VARIANT_NAME,
// "Port Info: " PORT_INFO,
"Platform: " PLATFORM_NAME,
0 // sentinel
};
// Allow draw some debug on LCD
#ifdef DEBUG_CONSOLE_SHOW
void my_debug_log(int offs, char *log){
static uint16_t shell_line_y = 0;
lcd_set_foreground(LCD_FG_COLOR);
lcd_set_background(LCD_BG_COLOR);
lcd_fill(FREQUENCIES_XPOS1, shell_line_y, LCD_WIDTH-FREQUENCIES_XPOS1, 2 * FONT_GET_HEIGHT);
lcd_drawstring(FREQUENCIES_XPOS1 + offs, shell_line_y, log);
shell_line_y+=FONT_STR_HEIGHT;
if (shell_line_y >= LCD_HEIGHT - FONT_STR_HEIGHT*4) shell_line_y=0;
}
#define DEBUG_LOG(offs, text) my_debug_log(offs, text);
#else
#define DEBUG_LOG(offs, text)
#endif
#ifdef __USE_SMOOTH__
static float arifmetic_mean(float v0, float v1, float v2){
return (v0+2*v1+v2)/4;
}
static float geometry_mean(float v0, float v1, float v2){
float v = vna_cbrtf(vna_fabsf(v0*v1*v2));
if (v0+v1+v2 < 0) v = -v;
return v;
}
uint8_t smooth_factor = 0;
void set_smooth_factor(uint8_t factor){
if (factor > 8) factor = 8;
smooth_factor = factor;
request_to_redraw(REDRAW_CAL_STATUS);
}
uint8_t get_smooth_factor(void) {
return smooth_factor;
}
// Allow smooth complex data point array (this remove noise, smooth power depend form count)
// see https://terpconnect.umd.edu/~toh/spectrum/Smoothing.html
static void measurementDataSmooth(uint16_t ch_mask){
int j;
// ch_mask = 2;
// memcpy(measured[0], measured[1], sizeof(measured[0]));
float (*smooth_func)(float v0, float v1, float v2) = VNA_MODE(VNA_MODE_SMOOTH) ? arifmetic_mean : geometry_mean;
for (int ch = 0; ch < 2; ch++,ch_mask>>=1) {
if ((ch_mask&1)==0) continue;
int count = 1<<(smooth_factor-1), n;
float *data = measured[ch][0];
for (n = 0; n < count; n++){
float prev_re = data[2*0 ];
float prev_im = data[2*0+1];
// first point smooth (use first and second points), disabled it made phase shift
// data[0] = smooth_func(prev_re, prev_re, data[2 ]);
// data[1] = smooth_func(prev_im, prev_im, data[2+1]);
// simple data smooth on 3 points
for (j = 1; j < sweep_points - 1; j++){
float old_re = data[2*j ]; // save current data point for next point smooth
float old_im = data[2*j+1];
data[2*j ] = smooth_func(prev_re, data[2*j ], data[2*j+2]);
data[2*j+1] = smooth_func(prev_im, data[2*j+1], data[2*j+3]);
prev_re = old_re;
prev_im = old_im;
}
// last point smooth, disabled it made phase shift
// data[2*j ] = smooth_func(data[2*j ], data[2*j ], prev_re);
// data[2*j+1] = smooth_func(data[2*j+1], data[2*j+1], prev_im);
}
}
}
#endif
static THD_WORKING_AREA(waThread1, 1024);
static THD_FUNCTION(Thread1, arg)
{
(void)arg;
chRegSetThreadName("sweep");
#ifdef __FLIP_DISPLAY__
if(VNA_MODE(VNA_MODE_FLIP_DISPLAY))
lcd_set_flip(true);
#endif
/*
* UI (menu, touch, buttons) and plot initialize
*/
ui_init();
//Initialize graph plotting
plot_init();
while (1) {
bool completed = false;
uint16_t mask = get_sweep_mask();
if (sweep_mode&(SWEEP_ENABLE|SWEEP_ONCE)) {
completed = sweep(true, mask);
sweep_mode&=~SWEEP_ONCE;
} else {
__WFI();
}
// Run Shell command in sweep thread
while (shell_function) {
shell_function(shell_nargs - 1, &shell_args[1]);
shell_function = 0;
osalThreadDequeueNextI(&shell_thread, MSG_OK);
}
// Process UI inputs
sweep_mode|= SWEEP_UI_MODE;
ui_process();
sweep_mode&=~SWEEP_UI_MODE;
// Process collected data, calculate trace coordinates and plot only if scan completed
if (completed) {
#ifdef __USE_SMOOTH__
// START_PROFILE;
if (smooth_factor)
measurementDataSmooth(mask);
// STOP_PROFILE;
#endif
// START_PROFILE
if ((props_mode & DOMAIN_MODE) == DOMAIN_TIME) transform_domain(mask);
// STOP_PROFILE;
// Prepare draw graphics, cache all lines, mark screen cells for redraw
request_to_redraw(REDRAW_PLOT);
}
request_to_redraw(REDRAW_BATTERY);
#ifndef DEBUG_CONSOLE_SHOW
// plot trace and other indications as raster
draw_all();
#endif
}
}
void
pause_sweep(void)
{
sweep_mode &= ~SWEEP_ENABLE;
}
static inline void
resume_sweep(void)
{
sweep_mode |= SWEEP_ENABLE;
}
void
toggle_sweep(void)
{
sweep_mode ^= SWEEP_ENABLE;
}
//
// Optimized Kaiser window functions for transform domain
//
// Zero-order modified Bessel function
// (x/2)^(2n)
// Bessel I0 = 1 + ---------- => For bessel_I0_ext(z) set input as z = (x/2)^2 (input range 0 .. beta*beta/4)
// (n!)^2
//
// z^n z z^2 z^3 z^4 z^5 z^n
// 1 + ------ = 1 + --- + --- + --- + --- + ----- ...... + ------
// (n!)^2 1 4 36 576 14400 (n!)^2
float bessel_I0_ext(float z) {
// Set calculated elements count, more size - less error but longer (bigger beta also need more size for less error)
// Use BESSEL_SIZE = 12 (last used n = 12), use constant size faster then check every time limits in float
// For beta = 6 and BESSEL_SIZE = 12 max error 4.2e-7
// For beta = 13 and BESSEL_SIZE = 12 max error 2.5e-4
#define BESSEL_SIZE 12
int i = BESSEL_SIZE - 1;
// Precalculated multipliers: 1 / (n!^2)
static const float besseli0_k[BESSEL_SIZE - 1] = {
// 1.0000000000000000000000000000000e+00, // 1 / ( 1!^2)
2.5000000000000000000000000000000e-01, // 1 / ( 2!^2)
2.7777777777777777777777777777778e-02, // 1 / ( 3!^2)
1.7361111111111111111111111111111e-03, // 1 / ( 4!^2)
6.9444444444444444444444444444444e-05, // 1 / ( 5!^2)
1.9290123456790123456790123456790e-06, // 1 / ( 6!^2)
3.9367598891408415217939027462837e-08, // 1 / ( 7!^2)
6.1511873267825648778029730410683e-10, // 1 / ( 8!^2)
7.5940584281266233059295963469979e-12, // 1 / ( 9!^2)
7.5940584281266233059295963469979e-14, // 1 / (10!^2)
6.2760813455591928148178482206594e-16, // 1 / (11!^2)
4.3583898233049950102901723754579e-18, // 1 / (12!^2)
// 2.5789288895295828463255457842946e-20, // 1 / (13!^2)
// 1.3157800456783585950640539715789e-22, // 1 / (14!^2)
// 5.8479113141260382002846843181284e-25, // 1 / (15!^2)
// 2.2843403570804836719862048117689e-27, // 1 / (16!^2)
// 7.9042918930120542283259682068128e-30, // 1 / (17!^2)
};
float term = z, ret = 1.0f + z;
do {ret += (term*= z) * besseli0_k[BESSEL_SIZE - 1 - i];} while(--i);
return ret;
}
// Kaiser window
// bessel_I0(beta*sqrt(1 - (2*k/N - 1)^2))
// Kaiser = -------------------------------------
// bessel_I0(beta)
// Move out constant divider: bessel_I0(beta) = bessel_I0_ext(beta * beta / 4)
// Made calculation optimization (in integer)
// x = (2*k)/(n-1) - 1 = (set n=n-1) = 2*k/n - 1 = (2*k-n)/n
// calculate kaiser window vs bessel_I0(w) there:
// n*n - (2*k-n)*(2*k-n) 4*k*(n-k)
// w = beta*sqrt(1 - x*x) = beta * sqrt(---------------------) = beta * sqrt(---------)
// n*n n*n
// bessel_I0(w) = bessel_I0_ext(z) (there z = (w*w)/4 for speed)
// w^2 k*(n-k)
// z = --- = beta * beta * (-------)
// 4 n*n
// return = bessel_I0_ext(z)
static float kaiser_window_ext(uint32_t k, uint32_t n, uint16_t beta) {
if (beta == 0) return 1.0f;
n = n - 1;
k = k * (n - k) * beta * beta;
n = n * n;
return bessel_I0_ext((float)k / n);
}
static void
transform_domain(uint16_t ch_mask)
{
// use spi_buffer as temporary buffer and calculate ifft for time domain
// Need 2 * sizeof(float) * FFT_SIZE bytes for work
#if 2*4*FFT_SIZE > (SPI_BUFFER_SIZE * LCD_PIXEL_SIZE)
#error "Need increase spi_buffer or use less FFT_SIZE value"
#endif
int i;
uint16_t offset = 0;
uint8_t is_lowpass = FALSE;
switch (domain_func) {
// case TD_FUNC_BANDPASS:
// break;
case TD_FUNC_LOWPASS_IMPULSE:
case TD_FUNC_LOWPASS_STEP:
is_lowpass = TRUE;
offset = sweep_points;
break;
}
uint16_t window_size = sweep_points + offset;
uint16_t beta = 0;
switch (domain_window) {
// case TD_WINDOW_MINIMUM:
// beta = 0; // this is rectangular
// break;
case TD_WINDOW_NORMAL:
beta = 6;
break;
case TD_WINDOW_MAXIMUM:
beta = 13;
break;
}
// Add amplitude correction for not full size FFT data and also add computed default scale
// recalculate the scale factor if any window details are changed. The scale factor is to compensate for windowing.
// Add constant multiplier for kaiser_window_ext use 1.0f / bessel0_ext(beta*beta/4.0f)
// Add constant multiplier 1.0f / FFT_SIZE
static float window_scale = 0.0f;
static uint16_t td_cache = 0;
// Check mode cache data
uint16_t td_check = (props_mode & (TD_WINDOW|TD_FUNC))|(sweep_points<<5);
if (td_cache!=td_check){
td_cache = td_check;
if (domain_func == TD_FUNC_LOWPASS_STEP)
window_scale = FFT_SIZE * bessel_I0_ext(beta*beta/4.0f);
else {
window_scale = 0.0f;
for (int i = 0; i < sweep_points; i++)
window_scale += kaiser_window_ext(i + offset, window_size, beta);
if (domain_func == TD_FUNC_LOWPASS_IMPULSE) window_scale*= 2.0f;
// window_scale/= FFT_SIZE // add correction from kaiser_window summ
// window_scale*= FFT_SIZE // add default from FFT_SIZE
// window_scale/= bessel_I0_ext(beta*beta/4.0f) // for get result as kaiser_window summ
// window_scale*= bessel_I0_ext(beta*beta/4.0f) // for set correction on calculated kaiser_window for value
}
window_scale = 1.0f / window_scale;
#ifdef USE_FFT_WINDOW_BUFFER
// Cache window function data to static buffer
static float kaiser_data[FFT_SIZE];
for (i = 0; i < sweep_points; i++)
kaiser_data[i] = kaiser_window_ext(i + offset, window_size, beta) * window_scale;
#endif
}
// Made Time Domain Calculations
for (int ch = 0; ch < 2; ch++,ch_mask>>=1) {
if ((ch_mask&1)==0) continue;
// Prepare data in tmp buffer (use spi_buffer), apply window function and constant correction factor
float* tmp = (float*)spi_buffer;
float *data = measured[ch][0];
for (i = 0; i < sweep_points; i++) {
#ifdef USE_FFT_WINDOW_BUFFER
float w = kaiser_data[i];
#else
float w = kaiser_window_ext(i + offset, window_size, beta) * window_scale;
#endif
tmp[i * 2 + 0] = data[i * 2 + 0] * w;
tmp[i * 2 + 1] = data[i * 2 + 1] * w;
}
// Fill zeroes last
for (; i < FFT_SIZE; i++) {
tmp[i * 2 + 0] = 0.0f;
tmp[i * 2 + 1] = 0.0f;
}
// For lowpass mode swap
if (is_lowpass) {
for (i = 1; i < sweep_points; i++) {
tmp[(FFT_SIZE - i) * 2 + 0] = tmp[i * 2 + 0];
tmp[(FFT_SIZE - i) * 2 + 1] = -tmp[i * 2 + 1];
}
}
// Made iFFT in temp buffer
fft_inverse((float(*)[2])tmp);
// set img part as zero
if (is_lowpass){
for (i = 0; i < sweep_points; i++)
tmp[i*2+1] = 0.0f;
}
if (domain_func == TD_FUNC_LOWPASS_STEP) {
for (i = 1; i < sweep_points; i++)
tmp[i*2+0]+= tmp[i*2+0-2];
}
// Copy data back
memcpy(measured[ch], tmp, sizeof(measured[0]));
}
}
// Shell commands output
int shell_printf(const char *fmt, ...)
{
if (shell_stream == NULL) return 0;
va_list ap;
int formatted_bytes;
va_start(ap, fmt);
formatted_bytes = chvprintf(shell_stream, fmt, ap);
va_end(ap);
return formatted_bytes;
}
static void shell_write(const void *buf, uint32_t size) {streamWrite(shell_stream, buf, size);}
static int shell_read(void *buf, uint32_t size) {return streamRead(shell_stream, buf, size);}
//static void shell_put(uint8_t c) {streamPut(shell_stream, c);}
//static uint8_t shell_getc(void) {return streamGet(shell_stream);}
#ifdef __USE_SERIAL_CONSOLE__
// Serial Shell commands output
int serial_shell_printf(const char *fmt, ...)
{
va_list ap;
int formatted_bytes;
va_start(ap, fmt);
formatted_bytes = chvprintf((BaseSequentialStream *)&SD1, fmt, ap);
va_end(ap);
return formatted_bytes;
}
#endif
VNA_SHELL_FUNCTION(cmd_pause)
{
(void)argc;
(void)argv;
pause_sweep();
}
VNA_SHELL_FUNCTION(cmd_resume)
{
(void)argc;
(void)argv;
// restore frequencies array and cal
update_frequencies();
resume_sweep();
}
VNA_SHELL_FUNCTION(cmd_reset)
{
(void)argc;
(void)argv;
#ifdef __DFU_SOFTWARE_MODE__
if (argc == 1) {
if (get_str_index(argv[0], "dfu") == 0) {
shell_printf("Performing reset to DFU mode" VNA_SHELL_NEWLINE_STR);
ui_enter_dfu();
return;
}
}
#endif
shell_printf("Performing reset" VNA_SHELL_NEWLINE_STR);
NVIC_SystemReset();
}
#ifdef __USE_SMOOTH__
VNA_SHELL_FUNCTION(cmd_smooth)
{
if (argc != 1) {
shell_printf("usage: %s" VNA_SHELL_NEWLINE_STR \
"current: %u" VNA_SHELL_NEWLINE_STR, "smooth {0-8}", smooth_factor);
return;
}
set_smooth_factor(my_atoui(argv[0]));
}
#endif
#ifdef ENABLE_CONFIG_COMMAND
VNA_SHELL_FUNCTION(cmd_config) {
static const char cmd_mode_list[] =
"auto"
#ifdef __USE_SMOOTH__
"|avg"
#endif
#ifdef __USE_SERIAL_CONSOLE__
"|connection"
#endif
"|mode"
"|grid"
"|dot"
#ifdef __USE_BACKUP__
"|bk"
#endif
#ifdef __FLIP_DISPLAY__
"|flip"
#endif
#ifdef __DIGIT_SEPARATOR__
"|separator"
#endif
#ifdef __SD_CARD_DUMP_TIFF__
"|tif"
#endif
;
int idx;
if (argc == 2 && (idx = get_str_index(argv[0], cmd_mode_list)) >= 0) {
apply_VNA_mode(idx, my_atoui(argv[1]));
}
else
shell_printf("usage: config {%s} [0|1]" VNA_SHELL_NEWLINE_STR, cmd_mode_list);
}
#endif
#ifdef __VNA_MEASURE_MODULE__
VNA_SHELL_FUNCTION(cmd_measure) {
static const char cmd_measure_list[] =
"none"
#ifdef __USE_LC_MATCHING__
"|lc" // Add LC match function
#endif
#ifdef __S21_MEASURE__
"|lcshunt" // Enable LC shunt measure option
"|lcseries" // Enable LC series measure option
"|xtal" // Enable XTAL measure option
#endif
#ifdef __S11_CABLE_MEASURE__
"|cable" // Enable S11 cable measure option
#endif
#ifdef __S11_RESONANCE_MEASURE__
"|resonance" // Enable S11 resonance search option
#endif
;
int idx;
if (argc == 1 && (idx = get_str_index(argv[0], cmd_measure_list)) >= 0)
plot_set_measure_mode(idx);
else
shell_printf("usage: measure {%s}" VNA_SHELL_NEWLINE_STR, cmd_measure_list);
}
#endif
#ifdef USE_VARIABLE_OFFSET
VNA_SHELL_FUNCTION(cmd_offset)
{
if (argc != 1) {
shell_printf("usage: %s" VNA_SHELL_NEWLINE_STR \
"current: %u" VNA_SHELL_NEWLINE_STR, "offset {frequency offset(Hz)}", IF_OFFSET);
return;
}
si5351_set_frequency_offset(my_atoi(argv[0]));
}
#endif
VNA_SHELL_FUNCTION(cmd_freq)
{
if (argc != 1) {
shell_printf("usage: freq {frequency(Hz)}" VNA_SHELL_NEWLINE_STR);
return;
}
uint32_t freq = my_atoui(argv[0]);
pause_sweep();
set_frequency(freq);
return;
}
void set_power(uint8_t value){
request_to_redraw(REDRAW_CAL_STATUS);
if (value > SI5351_CLK_DRIVE_STRENGTH_8MA) value = SI5351_CLK_DRIVE_STRENGTH_AUTO;
if (current_props._power == value) return;
current_props._power = value;
// Update power if pause, need for generation in CW mode
if (!(sweep_mode&SWEEP_ENABLE)) si5351_set_power(value);
}
VNA_SHELL_FUNCTION(cmd_power)
{
if (argc != 1) {
shell_printf("usage: power {0-3}|{255 - auto}" VNA_SHELL_NEWLINE_STR \
"power: %d" VNA_SHELL_NEWLINE_STR, current_props._power);
return;
}
set_power(my_atoi(argv[0]));
}
#ifdef __USE_RTC__
VNA_SHELL_FUNCTION(cmd_time)
{
(void)argc;
(void)argv;
uint32_t dt_buf[2];
dt_buf[0] = rtc_get_tr_bcd(); // TR should be read first for sync
dt_buf[1] = rtc_get_dr_bcd(); // DR should be read second
static const uint8_t idx_to_time[] = {6,5,4,2, 1, 0};
static const char time_cmd[] = "y|m|d|h|min|sec|ppm";
// 0 1 2 4 5 6
// time[] ={sec, min, hr, 0, day, month, year, 0}
uint8_t *time = (uint8_t*)dt_buf;
if (argc == 3 && get_str_index(argv[0], "b") == 0){
rtc_set_time(my_atoui(argv[1]), my_atoui(argv[2]));
return;
}
if (argc!=2) goto usage;
int idx = get_str_index(argv[0], time_cmd);
if(idx == 6) {
rtc_set_cal(my_atof(argv[1]));
return;
}
uint32_t val = my_atoui(argv[1]);
if (idx < 0 || val > 99)
goto usage;
// Write byte value in struct
time[idx_to_time[idx]] = ((val/10)<<4)|(val%10); // value in bcd format
rtc_set_time(dt_buf[1], dt_buf[0]);
return;
usage:
shell_printf("20%02x/%02x/%02x %02x:%02x:%02x" VNA_SHELL_NEWLINE_STR \
"usage: time {[%s] 0-99} or {b 0xYYMMDD 0xHHMMSS}" VNA_SHELL_NEWLINE_STR,
time[6], time[5], time[4], time[2], time[1], time[0], time_cmd);
}
#endif
#ifdef __VNA_ENABLE_DAC__
VNA_SHELL_FUNCTION(cmd_dac)
{
if (argc != 1) {
shell_printf("usage: %s" VNA_SHELL_NEWLINE_STR \
"current: %u" VNA_SHELL_NEWLINE_STR, "dac {value(0-4095)}", config._dac_value);
return;
}
dac_setvalue_ch2(my_atoui(argv[0])&0xFFF);
}
#endif
VNA_SHELL_FUNCTION(cmd_threshold)
{
uint32_t value;
if (argc != 1) {
shell_printf("usage: %s" VNA_SHELL_NEWLINE_STR \
"current: %u" VNA_SHELL_NEWLINE_STR, "threshold {frequency in harmonic mode}", config._harmonic_freq_threshold);
return;
}
value = my_atoui(argv[0]);
config._harmonic_freq_threshold = value;
}
VNA_SHELL_FUNCTION(cmd_saveconfig)
{
(void)argc;
(void)argv;
config_save();
shell_printf("Config saved" VNA_SHELL_NEWLINE_STR);
}
VNA_SHELL_FUNCTION(cmd_clearconfig)
{
if (argc != 1) {
shell_printf("usage: clearconfig {protection key}" VNA_SHELL_NEWLINE_STR);
return;
}
if (get_str_index(argv[0], "1234") != 0) {
shell_printf("Key unmatched." VNA_SHELL_NEWLINE_STR);
return;
}
clear_all_config_prop_data();
shell_printf("Config and all cal data cleared." VNA_SHELL_NEWLINE_STR \
"Do reset manually to take effect. Then do touch cal and save." VNA_SHELL_NEWLINE_STR);
}
VNA_SHELL_FUNCTION(cmd_data)
{
int i;
int sel = 0;
float (*array)[2];
if (argc == 1)
sel = my_atoi(argv[0]);
if (sel < 0 || sel >=7)
goto usage;
array = sel < 2 ? measured[sel] : cal_data[sel-2];
for (i = 0; i < sweep_points; i++)
shell_printf("%f %f" VNA_SHELL_NEWLINE_STR, array[i][0], array[i][1]);
return;
usage:
shell_printf("usage: data [array]" VNA_SHELL_NEWLINE_STR);
}
VNA_SHELL_FUNCTION(cmd_capture)
{
// read pixel count at one time (PART*2 bytes required for read buffer)
(void)argc;
(void)argv;
int y;
// Check buffer limits, if less possible reduce rows count
#define READ_ROWS 2
#if (SPI_BUFFER_SIZE*LCD_PIXEL_SIZE) < (LCD_RX_PIXEL_SIZE*LCD_WIDTH*READ_ROWS)
#error "Low size of spi_buffer for cmd_capture"
#endif
// Text on screenshot
if (argc > 0) {
lcd_set_colors(LCD_FG_COLOR, LCD_BG_COLOR);
for (int i = 0; i < argc; i++)
lcd_printf(OFFSETX + CELLOFFSETX + 2, AREA_HEIGHT_NORMAL - (argc - i) * FONT_STR_HEIGHT - 2, argv[i]);
request_to_redraw(REDRAW_AREA);
}
// read 2 row pixel time
for (y = 0; y < LCD_HEIGHT; y += READ_ROWS) {
// use uint16_t spi_buffer[2048] (defined in ili9341) for read buffer
lcd_read_memory(0, y, LCD_WIDTH, READ_ROWS, (uint16_t *)spi_buffer);
shell_write(spi_buffer, READ_ROWS * LCD_WIDTH * sizeof(uint16_t));
}
}
#if 0
VNA_SHELL_FUNCTION(cmd_gamma)
{
float gamma[2];
(void)argc;
(void)argv;
pause_sweep();
chMtxLock(&mutex);
wait_dsp(4);
calculate_gamma(gamma);
chMtxUnlock(&mutex);
shell_printf("%d %d" VNA_SHELL_NEWLINE_STR, gamma[0], gamma[1]);
}
#endif
static void (*sample_func)(float *gamma) = calculate_gamma;
#ifdef ENABLE_SAMPLE_COMMAND
VNA_SHELL_FUNCTION(cmd_sample)
{
if (argc != 1) goto usage;
// 0 1 2
static const char cmd_sample_list[] = "gamma|ampl|ref";
switch (get_str_index(argv[0], cmd_sample_list)) {
case 0:
sample_func = calculate_gamma;
return;
case 1:
sample_func = fetch_amplitude;
return;
case 2:
sample_func = fetch_amplitude_ref;
return;
default:
break;
}
usage:
shell_printf("usage: sample {%s}" VNA_SHELL_NEWLINE_STR, cmd_sample_list);
}
#endif
config_t config = {
.magic = CONFIG_MAGIC,
._harmonic_freq_threshold = FREQUENCY_THRESHOLD,
._IF_freq = FREQUENCY_OFFSET,
._touch_cal = DEFAULT_TOUCH_CONFIG,
._vna_mode = 0, // USB mode, search max
._brightness = DEFAULT_BRIGHTNESS,
._dac_value = 1922,
._vbat_offset = 420,
._bandwidth = BANDWIDTH_1000,
._lcd_palette = LCD_DEFAULT_PALETTE,
._serial_speed = SERIAL_DEFAULT_BITRATE,
._xtal_freq = XTALFREQ,
._measure_r = MEASURE_DEFAULT_R,
._lever_mode = LM_MARKER,
._band_mode = 0,
};
properties_t current_props;
// NanoVNA Default settings
static const trace_t def_trace[TRACES_MAX] = {//enable, type, channel, smith format, scale, refpos
{ TRUE, TRC_LOGMAG, 0, MS_RX, 10.0, NGRIDY-1 },
{ TRUE, TRC_LOGMAG, 1, MS_REIM, 10.0, NGRIDY-1 },
{ TRUE, TRC_SMITH, 0, MS_RX, 1.0, 0 },
{ TRUE, TRC_PHASE, 1, MS_REIM, 90.0, NGRIDY/2 }
};
static const marker_t def_markers[MARKERS_MAX] = {
{ TRUE, 0, 10*SWEEP_POINTS_MAX/100-1, 0 },
#if MARKERS_MAX > 1
{FALSE, 0, 20*SWEEP_POINTS_MAX/100-1, 0 },
#endif
#if MARKERS_MAX > 2
{FALSE, 0, 30*SWEEP_POINTS_MAX/100-1, 0 },
#endif
#if MARKERS_MAX > 3
{FALSE, 0, 40*SWEEP_POINTS_MAX/100-1, 0 },
#endif
#if MARKERS_MAX > 4
{FALSE, 0, 50*SWEEP_POINTS_MAX/100-1, 0 },
#endif
#if MARKERS_MAX > 5
{FALSE, 0, 60*SWEEP_POINTS_MAX/100-1, 0 },
#endif
#if MARKERS_MAX > 6
{FALSE, 0, 70*SWEEP_POINTS_MAX/100-1, 0 },
#endif
#if MARKERS_MAX > 7
{FALSE, 0, 80*SWEEP_POINTS_MAX/100-1, 0 },
#endif
};
// Load propeties default settings
static void load_default_properties(void) {
//Magic add on caldata_save
current_props.magic = PROPERTIES_MAGIC;
current_props._frequency0 = 50000; // start = 50kHz
current_props._frequency1 = 900000000; // end = 900MHz
current_props._var_freq = 0;
current_props._sweep_points = POINTS_COUNT_DEFAULT; // Set default points count
current_props._cal_frequency0 = 50000; // calibration start = 50kHz
current_props._cal_frequency1 = 900000000; // calibration end = 900MHz
current_props._cal_sweep_points = POINTS_COUNT_DEFAULT; // Set calibration default points count
current_props._cal_status = 0;
//=============================================
memcpy(current_props._trace, def_trace, sizeof(def_trace));
memcpy(current_props._markers, def_markers, sizeof(def_markers));
//=============================================
current_props._electrical_delay[0] = 0.0f;
current_props._electrical_delay[1] = 0.0f;
current_props._var_delay = 0.0f;
current_props._s21_offset = 0.0f;
current_props._portz = 50.0f;
current_props._cal_load_r = 50.0f;
current_props._velocity_factor = 70;
current_props._current_trace = 0;
current_props._active_marker = 0;
current_props._previous_marker = MARKER_INVALID;
current_props._mode = 0;
current_props._reserved = 0;
current_props._power = SI5351_CLK_DRIVE_STRENGTH_AUTO;
current_props._cal_power = SI5351_CLK_DRIVE_STRENGTH_AUTO;
current_props._measure = 0;
//This data not loaded by default
//current_props._cal_data[5][POINTS_COUNT][2];
//Checksum add on caldata_save
//current_props.checksum = 0;
}
//
// Backup registers support, allow save data on power off (while vbat power enabled)
//
#ifdef __USE_BACKUP__
#if SWEEP_POINTS_MAX > 511 || SAVEAREA_MAX > 15
#error "Check backup data limits!!"
#endif
// backup_0 bitfield
typedef union {
struct {
uint32_t points : 9; // 9 !! limit 511 points!!
uint32_t bw : 9; // 18 !! limit 511
uint32_t id : 4; // 22 !! 15 save slots
uint32_t leveler : 3; // 25
uint32_t brightness : 7; // 32
};
uint32_t v;
} backup_0;
void update_backup_data(void) {
backup_0 bk = {
.points = sweep_points,
.bw = config._bandwidth,
.id = lastsaveid,
.leveler = lever_mode,
.brightness = config._brightness
};
set_backup_data32(0, bk.v);
set_backup_data32(1, frequency0);
set_backup_data32(2, frequency1);
set_backup_data32(3, var_freq);
set_backup_data32(4, config._vna_mode);
}
static void load_settings(void) {
load_default_properties(); // Load default settings
if (config_recall() == 0 && VNA_MODE(VNA_MODE_BACKUP)) { // Config loaded ok and need restore backup if enabled
backup_0 bk = {.v = get_backup_data32(0)};
if (bk.v != 0) { // if backup data valid
if (bk.id < SAVEAREA_MAX && caldata_recall(bk.id) == 0) { // Slot valid and Load ok
sweep_points = bk.points; // Restore settings depend from calibration data
frequency0 = get_backup_data32(1);
frequency1 = get_backup_data32(2);
var_freq = get_backup_data32(3);
} else
caldata_recall(0);
// Here need restore settings not depend from cal data
config._brightness = bk.brightness;
lever_mode = bk.leveler;
config._vna_mode = get_backup_data32(4) | (1<<VNA_MODE_BACKUP); // refresh backup settings
set_bandwidth(bk.bw);
}
} else // Try load 0 slot
caldata_recall(0);
update_frequencies();
#ifdef __VNA_MEASURE_MODULE__
plot_set_measure_mode(current_props._measure);
#endif
}
#else
static void load_settings(void) {
load_default_properties();
config_recall();
load_properties(0);
}
#endif
int load_properties(uint32_t id) {
int r = caldata_recall(id);
update_frequencies();
#ifdef __VNA_MEASURE_MODULE__
plot_set_measure_mode(current_props._measure);
#endif
return r;
}
#ifdef ENABLED_DUMP_COMMAND
audio_sample_t *dump_buffer;
volatile int16_t dump_len = 0;
int16_t dump_selection = 0;
static void
duplicate_buffer_to_dump(audio_sample_t *p, size_t n)
{
p+=dump_selection;
while (n) {