bare7

Cargo.toml

@@ -34,6 +34,14 @@ version = "0.2.0"
 git = "https://github.com/jsjolund/f4"
 version = "0.1.0"
 
+[dependencies.heapless]
+git = "https://github.com/japaric/heapless.git"
+version = "0.2.1"
+
+[dependencies.nb]
+git = "https://github.com/japaric/nb.git"
+version = "0.1.1"
+
 [features]
 wcet_bkpt = [] 
 wcet_nop = [] 

examples/bare6.rs

@@ -59,6 +59,7 @@ fn clock_out(rcc: &mut RCC, gpioc: &mut GPIOC) {
     // otyper reset state push/pull, in reset state (don't need to change)
 
     // ospeedr 0b11 = high speed
+    // ospeedr 0d00 = low speed
     gpioc
         .ospeedr
         .modify(|_, w| unsafe { w.ospeedr9().bits(0b11) });

examples/bare7.rs

@@ -48,7 +48,7 @@ fn init(p: init::Peripherals) {
                 let _ = serial.write(byte);
             }
             Err(err) => {
-                ipln!("Error {:?}", err);
+                ipln!("Error {:?}: the bufer overflows. Type slower", err);
                 p.USART2.dr.read(); // clear the error by reading the data register
             }
         }
@@ -89,9 +89,10 @@ fn idle() -> ! {
 // (just send the characters not the single quotes and commas)
 // what did you receive, and what was the output of the ITM trace
 // ** your answer here **
-//
+//  a b c d it echo emidtly. //
 // why did the transmission fail? (hint, think about timing...)
 // ** your answer here **
+//  it is set to 8 byte som it sent 1 charakter att the time and ther for is the echo per charakter
 //
 // commit your answers (bare7_1)
 //
@@ -99,6 +100,8 @@ fn idle() -> ! {
 // 'a', 'b', 'c', 'd', 'e' character by character
 // what did you receive, and what was the output of the ITM trace
 // ** your answer here **
+//  "ok [96,97,98,99]
+//  repit ...
 //  
 // if done correctly you see an evedince of Rust's memory safety
 // the buffer will be saturated (all elements occupied)

serielset.txt

+/dev/ttaACM0
+115200
+8
+1