From c39aa289d55ae1a89c78e8b1717c7e3472f1bc86 Mon Sep 17 00:00:00 2001
From: occheung <dc@m-labs.hk>
Date: Fri, 28 Aug 2020 16:32:45 +0800
Subject: [PATCH] toml: add rounding library for f64

---
 Cargo.toml           | 1 +
 examples/ethernet.rs | 6 ++++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 136a45a..75196d9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,6 +17,7 @@ smoltcp = { version = "0.6.0", default-features = false, features = [ "ethernet"
 nb = "1.0.0"
 scpi = {path = "../scpi-rs/scpi", version = "0.3.4"}
 lexical-core = { version="0.7.1", features=["radix"], default-features=false }
+libm = { version = "0.2.0" }
 
 # Logging and Panicking
 panic-itm = "0.4.1"
diff --git a/examples/ethernet.rs b/examples/ethernet.rs
index d7f0979..51f9f0b 100644
--- a/examples/ethernet.rs
+++ b/examples/ethernet.rs
@@ -29,6 +29,8 @@ use stm32h7xx_hal::rcc::CoreClocks;
 use stm32h7xx_hal::{pac, prelude::*, stm32, stm32::interrupt};
 use Speed::*;
 
+use libm::round;
+
 /*
 #[cfg(feature = "itm")]
 use cortex_m_log::log::{trick_init, Logger};
@@ -271,8 +273,8 @@ fn main() -> ! {
                     (buffer.len(), buffer)
                 }).unwrap();
                 hprintln!("{:?}", data).unwrap();
-                let result = lexical_core::parse_partial::<f32>(data).unwrap();
-                writeln!(socket, "{}", (result.0 * 2.0));
+                let result = lexical_core::parse_partial::<f64>(data).unwrap();
+                writeln!(socket, "{}", round(result.0 * 2.0));
             }
 		    else if socket.can_recv() {
 				// hprintln!("{:?}", socket.can_recv());