bare10_1

examples/bare10.rs

@@ -83,9 +83,9 @@ const APP: () = {
     fn trace_data(byte: u8) {
         let stim = &mut resources.ITM.stim[0];
         iprintln!(stim, "data {}", byte);
-        // for _ in 0..10000 {
-        //     asm::nop();
-        // }
+        for _ in 0..10000 {
+            asm::nop();
+        }
     }
 
     #[task(priority = 1, resources = [ITM])]
@@ -145,15 +145,17 @@ const APP: () = {
 //
 //    Did you loose any data (was the data correctly echoed)?
 //
-//    ** your answer here **
+//    ** No, the data was correctly echoed. **
 //
 //    Was the data correctly traced over the ITM?
 //
-//    ** your answer here **
+//    ** No, only ab was traced. c and d generated RingBufferOverflow. **
 //
 //    Why did you loose trace information?
 //
-//    ** your asnwer here **
+//    ** The interrupt has higher priority so it takes over from the running
+//    trace_data task, but that task has not finished its nop-loop started
+//    in a previous interrupt. Therefore the block!() evaluates to an error. **
 //
 //    Commit your answers (bare10_1)
 //