.gitignore

@@ -1,2 +1 @@
 .DS_Store
-ESP32_Oscilloscope/build

ESP32_Oscilloscope/ESP32_Oscilloscope.ino

@@ -6,7 +6,6 @@
 #include <driver/adc.h>
 #include <soc/syscon_reg.h>
 
-#include <User_Setup.h>
 #include <TFT_eSPI.h>
 
 #include <SPI.h>
@@ -18,21 +17,8 @@
 #define DEBUG_DELAY 250
 
 // Width and height of sprite
-#ifdef ILI9341_DRIVER
-#warning "Use ILI9341 display settings."
 #define DISPLAY_HEIGHT 240
 #define DISPLAY_WIDTH  320
-#endif
-
-#ifdef ST7789_DRIVER
-#warning "Use ST7789 display settings."
-#define DISPLAY_HEIGHT 240
-#define DISPLAY_WIDTH  280
-#endif
-
-#ifndef DISPLAY_HEIGHT
-#error "No display driver defined"
-#endif
 
 #define ADC_CHANNEL   ADC1_CHANNEL_5 // GPIO33
 #define NUM_SAMPLES             1000 // number of samples
@@ -128,10 +114,6 @@ void IRAM_ATTR btback()
 void setup() {
   Serial.begin(115200);
 
-  esp_reset_reason_t reset_reason = esp_reset_reason();
-  Serial.print("Reset reason: ");
-  Serial.println(reset_reason);
-
   configure_i2s(1000000);
 
   setup_screen();
@@ -211,7 +193,6 @@ void core1_task(void *pvParameters)
         if (stop_change)
         {
           i2s_adc_enable(I2S_NUM_0);
-          i2s_zero_dma_buffer(I2S_NUM_0);
           stop_change = false;
         }
         ADC_Sampling(i2s_buff);
@@ -221,8 +202,7 @@ void core1_task(void *pvParameters)
       {
         if (!stop_change)
         {
-          // TODO the disable function causes an esp32 reset
+          i2s_adc_disable(I2S_NUM_0);
-          //i2s_adc_disable(I2S_NUM_0);
           i2s_zero_dma_buffer(I2S_NUM_0);
           stop_change = true;
         }
@@ -230,7 +210,7 @@ void core1_task(void *pvParameters)
       // Serial.println("CORE1");
       vTaskDelay(pdMS_TO_TICKS(300));
     }
-    else // else single trigger
+    else
     {
       float old_mean = 0;
       while (single_trigger)

ESP32_Oscilloscope/options_handler.ino

@@ -132,7 +132,6 @@ void button()
       {
         set_value = 0;
         btnbk = 0;
-        btnok = 0;
       }
     }
     else
@@ -144,8 +143,8 @@ void button()
         {
           opt = 1;
         }
-        //Serial.print("option : ");
+        Serial.print("option : ");
-        //Serial.println(opt);
+        Serial.println(opt);
         btnpl = 0;
       }
       if (btnmn == 1)
@@ -155,8 +154,8 @@ void button()
         {
           opt = 9;
         }
-        //Serial.print("option : ");
+        Serial.print("option : ");
-        //Serial.println(opt);
+        Serial.println(opt);
         btnmn = 0;
       }
       if (btnbk == 1)
@@ -173,19 +172,29 @@ void button()
           break;
 
         case Vdiv:
+          set_value = true;
+          break;
+
         case Sdiv:
+          set_value = true;
+          break;
+
         case Offset:
-        case TOffset:
           set_value = true;
           break;
 
         case Stop:
           stop = !stop;
-          //Serial.print("Stop : ");
+          Serial.print("Stop : ");
-          //Serial.println(stop);
+          Serial.println(stop);
           set_value = false;
           break;
 
+        case TOffset:
+          set_value = true;
+          // set_value = false;
+          break;
+
         case Single:
           single_trigger = true;
           set_value = false;

ESP32_Oscilloscope/screen.ino

@@ -1,12 +1,7 @@
 void setup_screen() {
   // Initialise the TFT registers
   tft.init();
-#ifdef ILI9341_DRIVER
   tft.setRotation(3);
-#endif
-#ifdef ST7789_DRIVER
-  tft.setRotation(1);
-#endif
 
   // Optionally set colour depth to 8 or 16 bits, default is 16 if not spedified
    spr.setColorDepth(8);
@@ -170,12 +165,7 @@ void draw_sprite(float freq,
       draw_channel1(trigger, 0, i2s_buff, sample_rate);
   }
 
-#ifdef ILI9341_DRIVER
-  int shift = DISPLAY_WIDTH - 130;
-#endif
-#ifdef ST7789_DRIVER
   int shift = DISPLAY_WIDTH - 110;
-#endif
   if (menu) {
     spr.drawLine( 0, DISPLAY_HEIGHT/2, DISPLAY_WIDTH, DISPLAY_HEIGHT/2, TFT_WHITE); //center line
     spr.fillRect(shift, 0, (DISPLAY_HEIGHT/2)-18, (DISPLAY_HEIGHT/2)+15, TFT_BLACK);
@@ -209,12 +199,7 @@ void draw_sprite(float freq,
     spr.drawString(offset_line,  shift + 25, (DISPLAY_HEIGHT/2)-8);
 
     if (set_value) {
-#ifdef ILI9341_DRIVER
       uint16_t t_left = shift+161;
-#endif
-#ifdef ST7789_DRIVER  
-      uint16_t t_left = shift+149; // previously hard coeded value 229
-#endif
       // Plus symbols while setting a value
       spr.fillRect(t_left, 0, 11, 11, TFT_BLUE);
       spr.drawRect(t_left, 0, 11, 11, TFT_WHITE);