From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Sat, 23 Apr 2022 13:07:22 +0000 (+0100)
Subject: couple of minor changes make life easier
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=a03549c861a770ec656d4d1a368fa4009aa49262;p=utils.git

couple of minor changes make life easier
* minicom and screen typically expect 115200 baud rate
* carriage-return line-feed otherwise minicom scrolls off edge
---

diff --git a/uart_demo.py b/uart_demo.py
index 89c40e7..22eecaf 100755
--- a/uart_demo.py
+++ b/uart_demo.py
@@ -63,7 +63,7 @@ class TickGenerator(Elaboratable):
 class SimpleUART(Elaboratable):
     """Simple transmit-only UART"""
 
-    def __init__(self, baud_rate=9600):
+    def __init__(self, baud_rate=115200): # default for minicom/screen: 115200
         self.__tick_gen = TickGenerator(baud_rate)
         self.data_in = Signal(8)
         self.data_in_valid = Signal()
@@ -219,7 +219,7 @@ class TestUartDemo(unittest.TestCase):
 
 
 def build(platform, do_program):
-    platform.build(UartDemo("Hello World!\n"), do_program=do_program)
+    platform.build(UartDemo("Hello World!\r\n"), do_program=do_program)
 
 
 PLATFORMS = {
@@ -229,7 +229,7 @@ PLATFORMS = {
 
 DEFAULT_PLATFORM = next(iter(PLATFORMS.keys()))
 DEFAULT_TOOLCHAIN = "yosys_nextpnr"
-DEFAULT_TEXT = "Hello World!\n"
+DEFAULT_TEXT = "Hello World!\r\n" # carriage-return line-feed
 
 PLATFORMS_TEXT = '\n'.join(PLATFORMS.keys())
 HELP_TEXT = f"""