pub const USER_STACK_SIZE: usize = 4096 * 2; pub const KERNEL_STACK_SIZE: usize = 4096 * 2; pub const KERNEL_HEAP_SIZE: usize = 0x20_0000; #[cfg(feature = "board_k210")] pub const MEMORY_END: usize = 0x80600000; #[cfg(feature = "board_qemu")] pub const MEMORY_END: usize = 0x80800000; pub const PAGE_SIZE: usize = 0x1000; pub const PAGE_SIZE_BITS: usize = 0xc; pub const TRAMPOLINE: usize = usize::MAX - PAGE_SIZE + 1; pub const TRAP_CONTEXT: usize = TRAMPOLINE - PAGE_SIZE; #[cfg(feature = "board_k210")] pub const CLOCK_FREQ: usize = 403000000 / 62; #[cfg(feature = "board_qemu")] pub const CLOCK_FREQ: usize = 12500000;