wip

GPIO/RP2040/ring.RP2040.ino

@@ -12,8 +12,8 @@
 // warranty is provided, and users accept all liability.
 //
 
-#define digitalWriteFast(pin,val) gpio_put(pin, val ? 1 : 0)
-#define digitalReadFast(pin) (gpio_get(pin) ? 1 : 0)
+#define digitalWriteFast(pin,val) (val ? sio_hw->gpio_set = (1 << pin) : sio_hw->gpio_clr = (1 << pin))
+#define digitalReadFast(pin) ((1 << pin) & sio_hw->gpio_in)
 
 void setup() {
    //
@@ -39,27 +39,27 @@ void loop1() {
    //
    uint32_t pin1 = (1 << 1);
    uint32_t pin2 = (1 << 2);
-   /**/
+   /*
    while (1) {
       if (pin1 & sio_hw->gpio_in)
          sio_hw->gpio_clr = pin2;
       else
          sio_hw->gpio_set = pin2;
       }
-   /**/
+   */
    //
    // Arduino Fast version
-   //    8.77 MHz at 250 MHz clock
-   //    8.16 MHz at 133 MHz clock
+   //    12.9 MHz at 250 MHz clock
+   //    9.17 MHz at 133 MHz clock
    //
-   /*
+   /**/
    while (1) {
       if (digitalReadFast(1))
          digitalWriteFast(2,LOW);
       else
          digitalWriteFast(2,HIGH);
       }
-   */
+   /**/
    //
    // Arduino version
    //    1.11 MHz at 250 MHz clock
@@ -74,4 +74,3 @@ void loop1() {
       }
    */
    }
-

index.html

@@ -70,14 +70,7 @@ The GPIO test measures how quickly pins can communicate with a processor core; t
 <tr>
 <td>12.9</td>
 <td>RP2040</td>
-<td><a href=GPIO/RP2040/ring.RP2040.ino>Arduino, SIO, 250 MHz</a></td>
-<td>December 2022</td>
-</tr>
-
-<tr>
-<td>8.77</td>
-<td>RP2040</td>
-<td><a href=GPIO/RP2040/ring.RP2040.ino>Arduino, digitalRead/WriteFast, 250 MHz</a></td>
+<td><a href=GPIO/RP2040/ring.RP2040.ino>Arduino, SIO/Fast, 250 MHz</a></td>
 <td>December 2022</td>
 </tr>