Use riscv_pac macros in example

Author: romancardenas

riscv-peripheral/examples/e310x.rs

@@ -3,9 +3,10 @@
 //! peripheral definitions for a target.
 
 use riscv_pac::result::{Error, Result};
-use riscv_pac::{ExternalInterruptNumber, HartIdNumber, InterruptNumber, PriorityNumber};
+use riscv_pac::{pac_enum, ExternalInterruptNumber};
 
 #[repr(u16)]
+#[pac_enum(unsafe HartIdNumber)]
 #[derive(Clone, Copy, Debug, Eq, PartialEq)]
 pub enum HartId {
     H0 = 0,
@@ -31,7 +32,6 @@ unsafe impl HartIdNumber for HartId {
 }
 
 #[derive(Copy, Clone, Debug, PartialEq, Eq)]
-#[repr(u16)]
 pub enum Interrupt {
     WATCHDOG = 1,
     RTC = 2,
@@ -108,8 +108,9 @@ unsafe impl InterruptNumber for Interrupt {
 
 unsafe impl ExternalInterruptNumber for Interrupt {}
 
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 #[repr(u8)]
+#[pac_enum(unsafe PriorityNumber)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq)]
 pub enum Priority {
     P0 = 0,
     P1 = 1,