refactored to use a for loop

src/main.c

@@ -9,16 +9,20 @@ unsigned *SCLpinctrl = (void *)(IO_BANK0_BASE + IO_BANK0_GPIO1_CTRL_OFFSET);
 const uint8_t init[4] = {0x21, 0xa0, 0xe1, 0x81};
 const uint8_t zeile[8] = {0x00, 0x02, 0x04, 0x06, 0x08, 0x10, 0x12, 0x14};
 const uint8_t fill[17] = {0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
 const uint8_t empty[17] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t achtel[17] = {0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t viertel[17] = {0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t dreiachtel[17] = {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t hälfte[17] = {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t fünfachtel[17] = {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t dreiviertel[17] = {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00};
-const uint8_t siebenachtel[17] = {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00};
-const uint8_t ganzes[17] = {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00};
 
+const uint8_t matrix[9][17] = {
+    {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // empty
+    {0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // achtel
+    {0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // viertel
+    {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // dreiachtel
+    {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // hälfte
+    {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, // fünfachtel
+    {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00}, // dreiviertel
+    {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0x00, 0x00}, // siebenachtel
+    {0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00}, // ganzes
+};
 int main()
 {
 
@@ -38,53 +42,14 @@ int main()
 
     i2c_write_blocking(i2c_default, 0x70, empty, 17, false);
 
-    i2c_write_blocking(i2c_default, 0x70, achtel, 17, false);
-
-    for (int j = 0; j < 10000000; j++)
-    {
-        volatile int i = 0;
-    }
-
-    i2c_write_blocking(i2c_default, 0x70, viertel, 17, false);
-    for (int j = 0; j < 10000000; j++)
-    {
-        volatile int i = 0;
-    }
-
-    i2c_write_blocking(i2c_default, 0x70, dreiachtel, 17, false);
-    for (int j = 0; j < 10000000; j++)
-    {
-        volatile int i = 0;
-    }
-
-    i2c_write_blocking(i2c_default, 0x70, hälfte, 17, false);
-    for (int j = 0; j < 10000000; j++)
+    for (int i = 0; i <= 8; i++)
     {
-        volatile int i = 0;
-    }
-
-    i2c_write_blocking(i2c_default, 0x70, fünfachtel, 17, false);
-    for (int j = 0; j < 10000000; j++)
-    {
-        volatile int i = 0;
-    }
+        i2c_write_blocking(i2c_default, 0x70, matrix[i], 17, false);
 
-    i2c_write_blocking(i2c_default, 0x70, dreiviertel, 17, false);
-    for (int j = 0; j < 10000000; j++)
-    {
-        volatile int i = 0;
-    }
-
-    i2c_write_blocking(i2c_default, 0x70, siebenachtel, 17, false);
-    for (int j = 0; j < 10000000; j++)
-    {
-        volatile int i = 0;
-    }
-
-    i2c_write_blocking(i2c_default, 0x70, ganzes, 17, false);
-    for (int j = 0; j < 10000000; j++)
-    {
-        volatile int i = 0;
+        for (int j = 0; j < 10000000; j++)
+        {
+            volatile int i = 0;
+        }
     }
 
     return 0;