2.1.28, initiation update to PXT v5.28.24 (#54)

sim/state/serial.ts

@@ -28,11 +28,21 @@ namespace pxsim {
     }
 }
 
+namespace pxsim.control {
+    export function __log(s: string) {
+        board().writeSerial(s + "\r\n");
+    }
+}
+
 namespace pxsim.serial {
     export function writeString(s: string) {
         board().writeSerial(s);
     }
 
+    export function writeBuffer(buf: RefBuffer) {
+        // TODO
+    }
+
     export function readUntil(del: string): string {
         return readString();
     }
@@ -53,4 +63,18 @@ namespace pxsim.serial {
     export function redirectToUSB() {
         // TODO
     }
+
+    export function setRxBufferSize(size: number) {
+        // TODO
+    }
+
+    export function setTxBufferSize(size: number) {
+        // TODO
+    }
+
+    export function readBuffer(length: number) {
+        if (length <= 0)
+            length = 64;
+        return pins.createBuffer(length);
+    }
 }