From 317cf18486a4791b0322aadcb07c32c6e0a7d0d9 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Thu, 27 Nov 2014 17:04:09 +0000
Subject: [PATCH] stmhal: Remove unnecessary HAL_Delay in readline loop.

The reason for having this delay is to reduce power consumption at the
REPL (HAL_Delay calls __WFI to idle the CPU).  But stdin_rx_chr has a
__WFI in it anyway, so this delay call is not needed.

By removing this call, the readline input can consume characters much
more quickly (before was limited to 1000 chrs/s), and has much reduced
dependency on the specific port.
---
 stmhal/readline.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/stmhal/readline.c b/stmhal/readline.c
index b49156b852..f158ccb900 100644
--- a/stmhal/readline.c
+++ b/stmhal/readline.c
@@ -30,12 +30,7 @@
 
 #include "mpconfig.h"
 #include "misc.h"
-#include "qstr.h"
-#include "misc.h"
-#include "obj.h"
-#include MICROPY_HAL_H
 #include "readline.h"
-#include "usb.h"
 #include "pybstdio.h"
 
 #if 0 // print debugging info
@@ -250,7 +245,5 @@ end_key:
             stdout_tx_strn(line->buf + cursor_pos, redraw_step_forward);
             cursor_pos += redraw_step_forward;
         }
-
-        HAL_Delay(1);
     }
 }