From 421a05575c2b56138947cb0e38187f6c6f3bf415 Mon Sep 17 00:00:00 2001
From: Per <Per Lindgren>
Date: Fri, 23 Feb 2018 10:52:06 +0100
Subject: [PATCH] loopback update
---
examples/loopback.rs | 31 +++++++++++++++++++++----------
1 file changed, 21 insertions(+), 10 deletions(-)
diff --git a/examples/loopback.rs b/examples/loopback.rs
index 4a1e705..48872ee 100644
--- a/examples/loopback.rs
+++ b/examples/loopback.rs
@@ -50,6 +50,10 @@ app! {
path: error_usart_overflow,
priority: 1,
},
+ EXTI4: {
+ path: rxne_not_set,
+ priority: 1,
+ },
}
}
@@ -104,16 +108,19 @@ fn usart2_handler(_t: &mut Threshold, r: USART2::Resources) {
r.USART2.dr.read(); // clear the error by reading the data register
}
}
- }
-
- match r.SEND.dequeue() {
- Some(b) => {
- // we (still) have something in the queue to send
- let _ = serial.write(b);
- }
- _ => {
- // the que was empty so the last item was already sent
- serial.unlisten(Event::Txe);
+ } else {
+ // rxne not set
+ rtfm::set_pending(f4::stm32f40x::Interrupt::EXTI4);
+
+ match r.SEND.dequeue() {
+ Some(b) => {
+ // we (still) have something in the queue to send
+ let _ = serial.write(b);
+ }
+ _ => {
+ // the que was empty so the last item was already sent
+ serial.unlisten(Event::Txe);
+ }
}
}
}
@@ -161,6 +168,10 @@ fn error_usart_overflow() {
ipln!("error_usart_overflow");
}
+fn rxne_not_set() {
+ ip!("-");
+}
+
#[derive(Debug)]
enum Command {
Start,
--
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