larger GPIO refactoring and Async UART update

vorago-reb1/examples/blinky-button-irq.rs

@@ -43,18 +43,16 @@ fn main() -> ! {
 
     // Configure an edge interrupt on the button and route it to interrupt vector 15
     let mut button = Button::new(pinsa.pa11.into_floating_input());
-    button.configure_edge_interrupt(
-        edge_irq,
-        InterruptConfig::new(pac::interrupt::OC15, true, true),
-        Some(&mut dp.sysconfig),
-        Some(&mut dp.irqsel),
-    );
 
     if PRESS_MODE == PressMode::Toggle {
         // This filter debounces the switch for edge based interrupts
         button.configure_filter_type(FilterType::FilterFourClockCycles, FilterClkSel::Clk1);
         set_clk_div_register(&mut dp.sysconfig, FilterClkSel::Clk1, 50_000);
     }
+    button.configure_and_enable_edge_interrupt(
+        edge_irq,
+        InterruptConfig::new(pac::interrupt::OC15, true, true),
+    );
 
     set_up_ms_tick(
         InterruptConfig::new(pac::Interrupt::OC0, true, true),