scpi: fix dds test sdio_in_only

Cargo.toml

@@ -17,7 +17,9 @@ smoltcp = { version = "0.6.0", default-features = false, features = [ "ethernet"
 nb = "1.0.0"
 scpi = { git = "https://github.com/occheung/scpi-rs", branch = "issue-4" }
 lexical-core = { version="0.7.1", features=["radix"], default-features=false }
-libm = { version = "0.2.0" }
+libm = "0.2.0"
+embedded-nal = "0.1.0"
+minimq = "0.1.0"
 
 # Logging and Panicking
 panic-itm = "0.4.1"

examples/ethernet.rs

@@ -58,6 +58,9 @@ use smoltcp::socket::SocketSet;
 use smoltcp::socket::{SocketHandle, TcpSocket, TcpSocketBuffer};
 use smoltcp::time::{Duration, Instant};
 
+// Use embedded-nal to access smoltcp
+use embedded_nal::TcpStack;
+
 use firmware;
 use firmware::{
 	attenuator::Attenuator,
@@ -301,8 +304,6 @@ fn main() -> ! {
     };
 
     let mut eth_up = false;
-    let mut receive_and_not_send = true;
-    let mut counter = 0;
 
     // Record activeness of silent socket, init as false
     let mut silent_socket_active = false;
@@ -319,7 +320,7 @@ fn main() -> ! {
             },
         };
 
-	    // Counting socket (:6969)
+	    // Float rounding test socket (:6969)
         {
             let mut socket = sockets.get::<TcpSocket>(tcp1_handle);
             if !socket.is_open() {
@@ -327,7 +328,7 @@ fn main() -> ! {
                 socket.set_timeout(Some(Duration::from_millis(5000)));
             }
 
-            if socket.can_recv() && receive_and_not_send {
+            if socket.can_recv() {
                 let data = socket.recv(|buffer| {
                     (buffer.len(), buffer)
                 }).unwrap();
@@ -335,16 +336,8 @@ fn main() -> ! {
                 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());
         }
-
-            if socket.can_send() && !receive_and_not_send {
-                writeln!(socket, "{}", counter);
-                receive_and_not_send = true;
-            }
-        }
-		// Silent socket (:7000)
+		//  SCPI interaction socket (:7000)
 		{
 		    let mut socket = sockets.get::<TcpSocket>(silent_handle);
 		    if !socket.is_open() {

src/dds.rs

@@ -357,7 +357,7 @@ where
 		// Test configuration register by getting SDIO_IN_ONLY and LSB_FIRST.
 		let mut error_count = 0;
 		let mut config_checks = [
-			(DDSCFRMask::SDIO_IN_ONLY, 0),
+			(DDSCFRMask::SDIO_IN_ONLY, 1),
 			(DDSCFRMask::LSB_FIRST, 0)
 		];
 		self.get_configurations(&mut config_checks)?;

src/scpi.rs

@@ -29,6 +29,7 @@ use scpi::{
 };
 
 use embedded_hal::blocking::spi::Transfer;
+use cortex_m_semihosting::hprintln;
 
 use crate::Urukul;
 
@@ -70,6 +71,7 @@ where
     }
 
     fn tst(&mut self) -> Result<()> {
+        hprintln!("Testing Urukul...").unwrap();
         match self.test() {
             Ok(0) => Ok(()),
             Ok(_) => Err(Error::new(