Increase baud rate to 38.4 kbps; add picocom example to README.md

README.md

@@ -5,6 +5,23 @@ Programming tool for parallel EEPROM chips, based on a ATmega16.
 Only supports AT28C256 EEPROM chips as of now.
 
 
+## Usage
+
+### Using the python tool
+
+(TODO)
+
+
+### Using the serial terminal
+
+The device uses a baud-rate of 38.4 kbps.
+Output lines end with a line feed (LF), input lines may end with LF or CR+LF.
+
+Example for using `picocom` to access the device:
+
+    picocom -b 38400 --imap lfcrlf --echo /dev/ttyUSB0
+
+
 ## Development
 
 ### VS Code configuration

firmware/Makefile

@@ -4,7 +4,7 @@
 # Compiler and tools
 CC = avr-gcc
 OBJCOPY = avr-objcopy
-AVRDUDE = avrdude
+AVRDUDE ?= avrdude
 
 # Compiler and linker flags
 CFLAGS = -Wall -std=c11 -Os

firmware/src/config.h

@@ -7,6 +7,6 @@
 #endif
 
 // Set UART Baud rate
-#define BAUD 9600UL
+#define BAUD 38400UL
 
 #endif /* CONFIG_H_ */