From 9a706b026cf59f1549e1748464f3a21c00fd0015 Mon Sep 17 00:00:00 2001
From: Per <Per Lindgren>
Date: Mon, 20 Nov 2017 02:07:13 +0100
Subject: [PATCH] expand main
---
doc/RTFM.md | 46 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/doc/RTFM.md b/doc/RTFM.md
index ec0df64..d217545 100644
--- a/doc/RTFM.md
+++ b/doc/RTFM.md
@@ -205,6 +205,52 @@ or
Let us study the `nested` example in detail.
+```rust
+fn main() {
+ let init: fn(stm32f40x::Peripherals, init::Resources) = init;
+ rtfm::atomic(unsafe { &mut rtfm::Threshold::new(0) }, |_t| unsafe {
+ let _late_resources =
+ init(stm32f40x::Peripherals::all(), init::Resources::new());
+ let nvic = &*stm32f40x::NVIC.get();
+ let prio_bits = stm32f40x::NVIC_PRIO_BITS;
+ let hw = ((1 << prio_bits) - 2u8) << (8 - prio_bits);
+ nvic.set_priority(stm32f40x::Interrupt::EXTI1, hw);
+ nvic.enable(stm32f40x::Interrupt::EXTI1);
+ let prio_bits = stm32f40x::NVIC_PRIO_BITS;
+ let hw = ((1 << prio_bits) - 1u8) << (8 - prio_bits);
+ nvic.set_priority(stm32f40x::Interrupt::EXTI0, hw);
+ nvic.enable(stm32f40x::Interrupt::EXTI0);
+ let prio_bits = stm32f40x::NVIC_PRIO_BITS;
+ let hw = ((1 << prio_bits) - 1u8) << (8 - prio_bits);
+ nvic.set_priority(stm32f40x::Interrupt::EXTI3, hw);
+ nvic.enable(stm32f40x::Interrupt::EXTI3);
+ let prio_bits = stm32f40x::NVIC_PRIO_BITS;
+ let hw = ((1 << prio_bits) - 3u8) << (8 - prio_bits);
+ nvic.set_priority(stm32f40x::Interrupt::EXTI2, hw);
+ nvic.enable(stm32f40x::Interrupt::EXTI2);
+ });
+ let idle: fn() -> ! = idle;
+ idle();
+}
+fn init(_p: init::Peripherals, _r: init::Resources) {}
+#[inline(never)]
+fn idle() -> ! {
+ let mut stdout = hio::hstdout().unwrap();
+ stdout
+ .write_fmt(::core::fmt::Arguments::new_v1(
+ &["Hello, world!\n"],
+ &match () {
+ () => [],
+ },
+ ))
+ .unwrap();
+ rtfm::bkpt();
+ rtfm::set_pending(Interrupt::EXTI3);
+ loop {
+ rtfm::wfi();
+ }
+}
+```
--
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