Update examples

Author: Disasm

examples/analog-stopwatch-with-spi-ssd1306.rs

@@ -79,11 +79,13 @@ fn main() -> ! {
 
     let clocks = setup_clocks(rcc);
 
+    let mut syscfg = dp.SYSCFG.constrain();
+
     let gpioa = dp.GPIOA.split();
     let gpioe = dp.GPIOE.split();
 
     let mut board_btn = gpioa.pa0.into_pull_down_input();
-    board_btn.make_interrupt_source(&mut dp.SYSCFG);
+    board_btn.make_interrupt_source(&mut syscfg);
     board_btn.enable_interrupt(&mut dp.EXTI);
     board_btn.trigger_on_edge(&mut dp.EXTI, Edge::FALLING);
 

examples/stopwatch-with-ssd1306-and-interrupts.rs

@@ -60,8 +60,6 @@ enum StopwatchState {
 #[entry]
 fn main() -> ! {
     if let (Some(mut dp), Some(cp)) = (stm32::Peripherals::take(), cortex_m::Peripherals::take()) {
-        dp.RCC.apb2enr.write(|w| w.syscfgen().enabled());
-
         let rcc = dp.RCC.constrain();
         let clocks = setup_clocks(rcc);
         let gpiob = dp.GPIOB.split();
@@ -75,10 +73,12 @@ fn main() -> ! {
             clocks,
         );
 
+        let mut syscfg = dp.SYSCFG.constrain();
+
         // Create a button input with an interrupt
         let gpioc = dp.GPIOC.split();
         let mut board_btn = gpioc.pc13.into_pull_up_input();
-        board_btn.make_interrupt_source(&mut dp.SYSCFG);
+        board_btn.make_interrupt_source(&mut syscfg);
         board_btn.enable_interrupt(&mut dp.EXTI);
         board_btn.trigger_on_edge(&mut dp.EXTI, Edge::FALLING);