add some more telemetry on errors

Author: bunnie

libs/bao1x-hal/src/sh1107.rs

@@ -466,7 +466,13 @@ impl<'a> Oled128x128<'a> {
                 .txrx_data_async_from_parts::<u8>(total_buf_len, len, true, false)
                 .expect("Couldn't initiate oled command");
         }
-        self.spim.txrx_await(false).map(|_| ())
+        self.spim
+            .txrx_await(false)
+            .inspect_err(|_| {
+                #[cfg(feature = "std")]
+                log::error!("timeout in send_command");
+            })
+            .map(|_| ())
     }
 
     pub fn init(&mut self) -> Result<(), xous::Error> {
@@ -612,7 +618,10 @@ impl<'a> FrameBuffer for Oled128x128<'a> {
                     .txrx_data_async_from_parts::<u8>(page * chunk_size, chunk_size, true, false)
                     .expect("Couldn't initiate oled data transfer");
             }
-            self.spim.txrx_await(false)?;
+            self.spim.txrx_await(false).inspect_err(|_| {
+                #[cfg(feature = "std")]
+                log::error!("timeout in draw");
+            })?;
         }
         Ok(())
     }