Fix more errors

Author: usbalbin

examples/adc.rs

@@ -45,7 +45,7 @@ fn main() -> ! {
 
     // This is a workaround, so that the debugger will not disconnect imidiatly on asm::wfi();
     // https://github.com/probe-rs/probe-rs/issues/350#issuecomment-740550519
-    dp.DBGMCU.cr.modify(|_, w| {
+    dp.DBGMCU.cr().modify(|_, w| {
         w.dbg_sleep().set_bit();
         w.dbg_standby().set_bit();
         w.dbg_stop().set_bit()

examples/i2c_scanner.rs

@@ -52,14 +52,14 @@ fn main() -> ! {
     for addr in 0x00_u8..0x80 {
         // Write the empty array and check the slave response.
         if VALID_ADDR_RANGE.contains(&addr) && i2c.write(addr, &[]).is_ok() {
-            hprint!("{:02x}", addr).unwrap();
+            hprint!("{:02x}", addr);
         } else {
-            hprint!("..").unwrap();
+            hprint!("..");
         }
         if addr % 0x10 == 0x0F {
-            hprintln!().unwrap();
+            hprintln!();
         } else {
-            hprint!(" ").unwrap();
+            hprint!(" ");
         }
     }
 

examples/serial_dma.rs

@@ -20,12 +20,12 @@ fn main() -> ! {
     // This is a workaround, so that the debugger will not disconnect
     // imidiatly on asm::wfi();
     // https://github.com/probe-rs/probe-rs/issues/350#issuecomment-740550519
-    dp.DBGMCU.cr.modify(|_, w| {
+    dp.DBGMCU.cr().modify(|_, w| {
         w.dbg_sleep().set_bit();
         w.dbg_standby().set_bit();
         w.dbg_stop().set_bit()
     });
-    dp.RCC.ahbenr.modify(|_, w| w.dma1en().enabled());
+    dp.RCC.ahbenr().modify(|_, w| w.dma1en().enabled());
 
     let mut rcc = dp.RCC.constrain();
     let clocks = rcc.cfgr.freeze(&mut flash.acr);