First steps for stm middleware

templates/blackpill/flash.jlink

+if SWD
+speed 4000
+device STM32F103C8
+loadbin build/blackpill.bin 0x8000000
+r
+g
+exit

templates/blackpill/middleware.py

+#!/usr/bin/env python3
+
+import os
+import sys
+import struct
+import serial
+from subprocess import Popen, PIPE, run
+
+def flash():
+        run("JLinkExe flash.jlink", shell=True, check=True)
+
+def read(channel, l):
+    if channel == 'ser':
+        data = ser.read(l)
+    elif channel == 'std':
+        data = sys.stdin.read(l)
+    else:
+        raise Exception("read() complains: no sai channelino")
+    if len(data) != l:
+        raise Exception("could not read %d bytes of data (got %d)" % (l, len(data)))
+    return data
+
+def write(channel, data, direction):
+    if channel == 'ser':
+        l = ser.write(data)
+    elif channel == 'std':
+        l = sys.stdout.write(data)
+    else:
+        raise Exception("write() complains: no sai channelino")
+    if len(data) != l:
+        raise Exception("could not write %d bytes of data (put %d)" % (len(data), l))
+            
+def obtain(channel):
+    l = read(channel, 4)
+    print(l)
+    (l, ) = struct.unpack("<I", l)
+    return read(channel, l)
+
+def submit(channel, action, data):
+    h = struct.pack("<BI", ord(action), len(data))
+    write(channel, h)
+    write(channel, data)
+
+def main():
+    #flash()
+    ser = serial.Serial('/dev/ttyUSB0', 115200)
+    while(1):
+        action = read('std', 1)
+        if (action):
+            if action == 'c' or action == 'm' or action == 'a' or action == 'k' or action == 's' or action == 'p':
+                data = obtain('std')
+                submit('ser', action, data)
+
+            elif action == 'e' or action == 'd':
+                write('ser', action)
+
+            elif action == 'C' or action == 'M' or action == 'A' or action == 'K' or action == 'S' or action == 'P':
+                write('ser', action)
+                data = obtain('ser')
+                submit('std', action, data)
+            else:
+                raise Exception("no capiche aczione %s" % (action))
+                
+if __name__ == "__main__":
+    sys.exit(main())