James Fan
RPC over USB serial testing step by step
RPC over usbserial testing with python step by step ( tested on KL25Z on 29 Aug 2013).
1. Get start - mBed firmware installation.
mBed firmware.
http://mbed.org/media/uploads/samux/mbed_if_v2.0_frdm_kl25z.s19
2. Install RPC_USBSerial into KL25Z.
- Register into mbed.org;
- Select platform KL25Z in compiler;
- Import program, Compile, download RPC_USBSerial.bin to PC;
- Save RPC_USBSerial_KL25Z.bin to MBED drive;
3. Install mbed usbserial driver to PC.
- Serial Communication with a PC;
http://mbed.org/handbook/SerialPC;
- Windows serial configuration.
http://mbed.org/handbook/Windows-serial-configuration
Find COM Port name at:
- Control Panel
- > Syetem
- > Hardware
- > Device Manager
- > Ports(COM & LPT)
- > Mbed Virtual Serial Port(COM?) (My one is "COM11" in picture below)
4. Install Python and Pyserial
- install python 2.7
- install pyserial http://sourceforge.net/projects/pyserial/files/pyserial/2.5/pyserial-2.5.win32.exe/download
5. Have fun.
- Modify Port number in serial_raw_rpc_test.py.txt
- Copy/Paste from serial_raw_rpc_test.py.txt to python (command line);
- Copy and run one line at a time to have real fun;
:)
Diff: serial_raw_rpc_test.py.txt
- Revision:
- 0:b8cfe8c7e985
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/serial_raw_rpc_test.py.txt Thu Aug 29 00:09:41 2013 +0000
@@ -0,0 +1,25 @@
+#
+# install python 2.7
+# install pyserial http://sourceforge.net/projects/pyserial/files/pyserial/2.5/pyserial-2.5.win32.exe/download
+
+import serial
+import time
+ser = serial.Serial(port='COM11', baudrate=9600, timeout=0)
+def ser_command (v):
+ ser.write(v + '\n')
+
+ser_command('/PwmOut/new LED1 blue') # turn on
+ser_command('/blue/write 1') # turn off
+ser_command('/blue/write 0.98') # dimm
+ser_command('/blue/read')
+ser_command('/blue/read')
+ser_command('/blue/read')
+ser_command('/blue/read')
+ser_command('/blue/read')
+ser_command('/blue/read')
+
+
+for i in range(100):
+ time.sleep(0.1)
+ ser.write('/blue/write '+ str(i/100.0) + '\n')
+ print(i/100.0)