In plot.c prepare for 8bit/pixel mode (test, allow increase cell buffer size by use 4 or 8bit/pixel mode, but not need for now)
main.c little change wait execute shell command in sweep thread
(For faster screen update on marker move, all old area update info invalidate after use draw_all_cells(TRUE) on page switch)
Force redraw all cells after end marker move
#define FREQ_MODE_START_STOP 0x0
#define FREQ_MODE_CENTER_SPAN 0x1
Now sweep mode not defined from frequency0 > frequency1 or frequency0 < frequency1
frequency0 always < frequency1
All freq must get by use get_sweep_frequency(mode)
Revert Select CH0 reflect channel before set freq, add additional delay on 0 sweep point
Little code optimization
Add commented 600kHz I2C bus timings (work, give x1.5 speed, but need change DSP ready timings not by wait_count, need use chVTGetSystemTimeX() its better)
Improve sweep speed about 60%
Stop generation on pause sweep
Remove all hack for si5351
Reduce code size
Fix integer overflow on big freq values
Additional
Change I2C
Others:
move marker_tracking variable to ui config
move some definition to correct place
reduce tlv320aic3204 code size
Speedup marker move from lever (BUTTON_REPEAT_TICKS = 625)
Need test stability
CH_CFG_USE_WAITEXIT (used only is Shell run as thread)
CH_CFG_USE_EVENTS (NanoVNA not use events)
CH_CFG_USE_EVENTS_TIMEOUT (NanoVNA not use events)
Implement stack use check in "threads" command, now free stack space show in table as "stk free" in hex
Check stack usage by sweep, and main threads (seems all ok, but add 64 bytes to sweep)
Replace some const values to defined