X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=uart%2Fhello_world%2FREADME;h=57365d63825e30abfdc19362d0c8c1da03312535;hb=d53db98d513dc13dbc75c1d1ca416b2b33e66ae9;hp=11d180b46857d3260802f455a55ecdd3e3946648;hpb=ab2a28319ba748c0ea86696681eba1d70a291c85;p=sigrok-dumps.git

diff --git a/uart/hello_world/README b/uart/hello_world/README
index 11d180b..57365d6 100644
--- a/uart/hello_world/README
+++ b/uart/hello_world/README
@@ -3,22 +3,28 @@ Hello World UART output using various options
 -------------------------------------------------------------------------------
 
 This is a collection of example UART communication (only in one direction).
-The repeatedly transmitted data is "Hello World!\r\n", using 8n1 settings.
+The repeatedly transmitted data is "Hello World!\r\n", using various settings,
+such as 8n1, 8o1, 8e1, 7o1, 7e1, etc.
+
+The hardware sending the data is an Olimex STM32-H103 eval kit with an
+ST STM32 (ARM Cortex-M3) microcontroller. The firmware used is based on a
+simple libopencm3 UART example. The USART1 (USART1.TX pin) is used.
+
+For details see:
+http://libopencm3.org
+http://libopencm3.git.sourceforge.net/git/gitweb.cgi?p=libopencm3/libopencm3;a=tree;f=examples/stm32/f1/stm32-h103/usart_printf
+http://olimex.com/dev/stm32-h103.html
 
 
 Logic analyzer setup
 --------------------
 
-The logic analyzer used for capturing is a ChronoVu LA8 at a sample rate
-of 5MHz (for baud rates 921600 - 230400), 1MHz (for 115200 - 19200),
-and 625kHz (for baud rates 9600 - 110).
-
-The ChronoVu LA8 probes were connected to the UART like this:
+The logic analyzer used was a ChronoVu LA8 at a sample rate of 5MHz (for baud
+rates 921600 - 230400), 1MHz (115200 - 19200), and 625kHz (9600 - 1200):
 
   Probe       UART
-  -------------------
+  ----------------
   0 (green)   TX
-  GND         GND
 
 
 Data