From 076390200a10c61d19edeead7c9dda93c264d860 Mon Sep 17 00:00:00 2001
From: Brendan Horan <brendan@horan.hk>
Date: Mon, 16 May 2022 22:22:58 +0930
Subject: [PATCH] Fix SPI loopback exmaple -- mixed up SDI and SDO (#72)

* Fix SPI loopback exmaple

Fix SDI and SDO been mixed up in example
Update to new names

* change SPI println back to orignal

* run cargo fmt
---
 examples/spi_loopback.rs | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/examples/spi_loopback.rs b/examples/spi_loopback.rs
index 842c73155..245ad5912 100644
--- a/examples/spi_loopback.rs
+++ b/examples/spi_loopback.rs
@@ -1,15 +1,15 @@
 //! SPI loopback test
 //!
 //! Folowing pins are used:
-//! SCLK    GPIO6
-//! MISO    GPIO2
-//! MOSI    GPIO7
-//! CS      GPIO10
+//! SCLK   GPIO6
+//! SDI    GPIO2
+//! SDO    GPIO7
+//! CS     GPIO10
 //!
 //! Depending on your target and the board you are using you have to change the pins.
 //!
 //! This example transfers data via SPI.
-//! Connect MISO and MOSI pins to see the outgoing data is read as incoming data.
+//! Connect SDI and SDO pins to see the outgoing data is read as incoming data.
 
 use std::thread;
 use std::time::Duration;
@@ -27,8 +27,8 @@ fn main() -> anyhow::Result<()> {
     let spi = peripherals.spi2;
 
     let sclk = peripherals.pins.gpio6;
-    let miso = peripherals.pins.gpio2;
-    let mosi = peripherals.pins.gpio7;
+    let serial_in = peripherals.pins.gpio2; //SDI
+    let serial_out = peripherals.pins.gpio7; //SDO
     let cs = peripherals.pins.gpio10;
 
     println!("Starting SPI loopback test");
@@ -37,8 +37,8 @@ fn main() -> anyhow::Result<()> {
         spi,
         spi::Pins {
             sclk,
-            sdo: miso,
-            sdi: Some(mosi),
+            sdo: serial_out,
+            sdi: Some(serial_in),
             cs: Some(cs),
         },
         config,