Enable SD card commands

Enable load config.ini from SD card
Smooth menu/keyboard update

main.c

@@ -97,7 +97,7 @@ static volatile vna_shellcmd_t  shell_function = 0;
 // Enable usart command
 #define ENABLE_USART_COMMAND
 // Enable SD card console command
-//#define ENABLE_SD_CARD_CMD
+#define ENABLE_SD_CARD_CMD
 
 static void apply_CH0_error_term_at(int i);
 static void apply_CH1_error_term_at(int i);

nanovna.h

@@ -40,7 +40,7 @@
 // Add SD card support, req enable RTC (additional settings for file system see FatFS lib ffconf.h)
 #define __USE_SD_CARD__
 // Allow run commands from SD card (config.ini in root)
-//#define __SD_CARD_LOAD__
+#define __SD_CARD_LOAD__
 // If enabled serial in halconf.h, possible enable serial console control
 #define __USE_SERIAL_CONSOLE__
 // Add LC match function

ui.c

@@ -1836,12 +1836,13 @@ static void drawMessageBox(char *header, char *text, uint32_t delay){
 }
 
 static void
-draw_keypad(void)
+draw_keypad(uint32_t mask)
 {
-  int i = 0;
+  int i;
   button_t button;
   button.fg = LCD_MENU_TEXT_COLOR;
-  do {
+  for(i = 0; keypads[i].c != KP_NONE; i++) {
+    if ((mask&(1<<i)) == 0) continue;
     if (i == selection){
       button.bg = LCD_MENU_ACTIVE_COLOR;
       button.border = KEYBOARD_BUTTON_BORDER|BUTTON_BORDER_FALLING;
@@ -1856,7 +1857,7 @@ draw_keypad(void)
     lcd_drawfont(keypads[i].c,
                      x + (KP_WIDTH - NUM_FONT_GET_WIDTH) / 2,
                      y + (KP_HEIGHT - NUM_FONT_GET_HEIGHT) / 2);
-  }while (keypads[++i].c != KP_NONE);
+  }
 }
 
 static int period_pos(void) {int j; for (j = 0; j < kp_index && kp_buf[j] != '.'; j++); return j;}
@@ -2004,15 +2005,15 @@ static const uint8_t button_icons[] = {
 };
 
 static void
-draw_menu_buttons(const menuitem_t *menu)
+draw_menu_buttons(const menuitem_t *menu, uint32_t mask)
 {
   uint16_t i, y;
   for (i = 0, y = 1; i < MENU_BUTTON_MAX; i++, y+=menu_button_height) {
     if (menu[i].type == MT_NONE)
       break;
     if (menu[i].type == MT_BLANK)
       continue;
-
+    if ((mask&(1<<i)) == 0) continue;
     button_t button;
     button.fg = LCD_MENU_TEXT_COLOR;
     button.icon = BUTTON_ICON_NONE;
@@ -2057,7 +2058,13 @@ draw_menu_buttons(const menuitem_t *menu)
 static void
 draw_menu(void)
 {
-  draw_menu_buttons(menu_stack[menu_current_level]);
+  draw_menu_buttons(menu_stack[menu_current_level], -1);
+}
+
+static void
+draw_menu_mask(uint32_t mask)
+{
+  draw_menu_buttons(menu_stack[menu_current_level], mask);
 }
 
 #if 0
@@ -2093,6 +2100,7 @@ ui_process_menu_lever(uint16_t status)
     return;
   }
   do {
+    uint32_t mask = 1<<selection;
     if (status & EVT_UP)
       selection++;
     if (status & EVT_DOWN)
@@ -2102,8 +2110,8 @@ ui_process_menu_lever(uint16_t status)
       ui_mode_normal();
       return;
     }
-    draw_menu();
-    chThdSleepMilliseconds(200);
+    draw_menu_mask(mask|(1<<selection));
+    chThdSleepMilliseconds(100);
   } while ((status = btn_wait_release()) != 0);
 }
 
@@ -2118,11 +2126,12 @@ menu_apply_touch(int touch_x, int touch_y)
     if (menu[i].type == MT_BLANK)
       continue;
     if (y < touch_y && touch_y < y+menu_button_height && LCD_WIDTH-MENU_BUTTON_WIDTH < touch_x) {
-   	  selection = i;
-   	  draw_menu();
-   	  touch_wait_release();
-   	  selection = -1;
-   	  menu_invoke(i);
+      uint32_t mask = (1<<i)|(1<<selection);
+      selection = i;
+      draw_menu_mask(mask);
+      touch_wait_release();
+      selection = -1;
+      menu_invoke(i);
       return;
     }
   }
@@ -2302,7 +2311,7 @@ ui_mode_keypad(int _keypad_mode)
   kp_index = 0;
   ui_mode = UI_KEYPAD;
   draw_menu();
-  draw_keypad();
+  draw_keypad(-1);
   draw_numeric_area_frame();
 }
 
@@ -2359,12 +2368,13 @@ keypad_apply_touch(int touch_x, int touch_y)
     int y = KP_GET_Y(keypads[i].y);
     if (x < touch_x && touch_x < x+KP_WIDTH && y < touch_y && touch_y < y+KP_HEIGHT) {
       // draw focus
+      uint32_t mask = (1<<i)|(1<<selection);
       selection = i;
-      draw_keypad();
+      draw_keypad(mask);
       touch_wait_release();
       // erase focus
       selection = -1;
-      draw_keypad();
+      draw_keypad(1<<i);
       // Exit loop on done or cancel
       if (keypad_click(i) != KP_CONTINUE)
         ui_mode_normal();
@@ -2389,12 +2399,13 @@ ui_process_keypad_lever(uint16_t status)
   for (keypads_last_index = 0; keypads[keypads_last_index+1].c != KP_NONE; keypads_last_index++)
     ;
   do {
+    uint32_t mask = 1<<selection;
     if ((status & EVT_DOWN) && --selection < 0)
       selection = keypads_last_index;
     if ((status & EVT_UP)   && ++selection > keypads_last_index)
         selection = 0;
-    draw_keypad();
-    chThdSleepMilliseconds(200);
+    draw_keypad(mask|(1<<selection));
+    chThdSleepMilliseconds(100);
   } while ((status = btn_wait_release()) != 0);
 }
 //========================== end keyboard input =======================