fix tab/space

src/main.rs

@@ -1,15 +1,16 @@
 #![no_main]
 #![no_std]
 #![feature(str_strip)]
-use log::{ trace, debug, info, warn };
-use stm32h7xx_hal::hal::digital::v2::InputPin;
+#![feature(core_intrinsics)]
+
+use log::{ trace };
 use stm32h7xx_hal::gpio::Speed;
 use stm32h7xx_hal::{pac, prelude::*, spi};
 use stm32h7xx_hal::ethernet;
 
 use smoltcp as net;
 use minimq::{
-    embedded_nal::{IpAddr, Ipv4Addr, TcpStack},
+    embedded_nal::{ IpAddr, Ipv4Addr },
     MqttClient, QoS
 };
 
@@ -17,7 +18,6 @@ use cortex_m;
 use cortex_m_rt::entry;
 use rtic::cyccnt::{Instant, U32Ext};
 
-use heapless::Vec;
 use heapless::consts;
 
 #[macro_use]
@@ -106,7 +106,7 @@ fn main() -> ! {
     let gpiob = dp.GPIOB.split(ccdr.peripheral.GPIOB);
     let gpioc = dp.GPIOC.split(ccdr.peripheral.GPIOC);
     let gpiod = dp.GPIOD.split(ccdr.peripheral.GPIOD);
-	let gpioe = dp.GPIOE.split(ccdr.peripheral.GPIOE);
+    let _gpioe = dp.GPIOE.split(ccdr.peripheral.GPIOE);
     let gpiof = dp.GPIOF.split(ccdr.peripheral.GPIOF);
     let gpiog = dp.GPIOG.split(ccdr.peripheral.GPIOG);
 
@@ -207,7 +207,7 @@ fn main() -> ! {
     let spi = dp.SPI6.spi(
         (sclk, miso, mosi),
         spi::MODE_0,
-		10.mhz(),
+        2.mhz(),
         ccdr.peripheral.SPI6,
         &ccdr.clocks,
     );
@@ -271,7 +271,7 @@ fn main() -> ! {
             .poll(|_client, topic, message, _properties| {
                 // info!("On {:?}, received: {:?}", topic, message);
                 // Why is topic a string while message is a slice?
-                mqtt_mux.process_mqtt(topic, message).is_ok();
+                mqtt_mux.process_mqtt(topic, message).unwrap();
             }).is_ok();
         
         if connection && !has_subscribed && tick {

src/urukul.rs

@@ -318,7 +318,7 @@ where
                 }
             }
         }
-		self.multi_dds.set_sys_clk_frequency(reported_f_sys_clk);
+        self.multi_dds.set_sys_clk_frequency(reported_f_sys_clk)?;
         self.multi_dds.set_single_tone_profile(profile, frequency, phase, amplitude)?;
         self.invoke_io_update()?;
         Ok(())
@@ -334,5 +334,4 @@ where
             (CFGMask::IO_UPDATE, 0)
         ]).map(|_| ())
     }
-
 }