self.serialport.flushOutput()
#TelosB reset, prefer software to I2C SPST Switch.
- if(os.environ.get("platform")=='telosb' or os.environ.get("board")=='telosb'):
+ if (os.environ.get("platform")=='telosb' or os.environ.get("board")=='telosb'):
#print "TelosB Reset";
self.telosBReset();
+ elif (os.environ.get("board")=='zolertiaz1' or os.environ.get("board")=='z1'):
+ self.bslResetZ1();
else:
#Explicitly set RTS and DTR to halt board.
self.serialport.setRTS(1);
self.telosI2CWriteByte( 0x90 | (addr << 1) )
self.telosI2CWriteByte( cmdbyte )
self.telosI2CStop()
+ def bslResetZ1(self, invokeBSL=0):
+ '''
+ Applies BSL entry sequence on RST/NMI and TEST/VPP pins
+ Parameters:
+ invokeBSL = 1: complete sequence
+ invokeBSL = 0: only RST/NMI pin accessed
+
+ By now only BSL mode is accessed
+ '''
+
+ #if DEBUG > 1: sys.stderr.write("* bslReset(invokeBSL=%s)\n" % invokeBSL)
+ if invokeBSL:
+ #sys.stderr.write("in Z1 bsl reset...\n")
+ time.sleep(0.1)
+ self.writepicROM(0xFF, 0xFF)
+ time.sleep(0.1)
+ #sys.stderr.write("z1 bsl reset done...\n")
+ else:
+ #sys.stderr.write("in Z1 reset...\n")
+ time.sleep(0.1)
+ self.writepicROM(0xFF, 0xFE)
+ time.sleep(0.1)
+ #sys.stderr.write("z1 reset done...\n")
+ def writepicROM(self, address, data):
+ ''' Writes data to @address'''
+ for i in range(7,-1,-1):
+ self.picROMclock((address >> i) & 0x01)
+ self.picROMclock(0)
+ recbuf = 0
+ for i in range(7,-1,-1):
+ s = ((data >> i) & 0x01)
+ #print s
+ if i < 1:
+ r = not self.picROMclock(s, True)
+ else:
+ r = not self.picROMclock(s)
+ recbuf = (recbuf << 1) + r
+
+ self.picROMclock(0, True)
+ #k = 1
+ #while not self.serial.getCTS():
+ # pass
+ #time.sleep(0.1)
+ return recbuf
+ def readpicROM(self, address):
+ ''' reads a byte from @address'''
+ for i in range(7,-1,-1):
+ self.picROMclock((address >> i) & 0x01)
+ self.picROMclock(1)
+ recbuf = 0
+ r = 0
+ for i in range(7,-1,-1):
+ r = self.picROMclock(0)
+ recbuf = (recbuf << 1) + r
+ self.picROMclock(r)
+ #time.sleep(0.1)
+ return recbuf
+
+ def picROMclock(self, masterout, slow = False):
+ #print "setting masterout to "+str(masterout)
+ self.serialport.setRTS(masterout)
+ self.serialport.setDTR(1)
+ #time.sleep(0.02)
+ self.serialport.setDTR(0)
+ if slow:
+ time.sleep(0.02)
+ return self.serialport.getCTS()
+
+ def picROMfastclock(self, masterout):
+ #print "setting masterout to "+str(masterout)
+ self.serialport.setRTS(masterout)
+ self.serialport.setDTR(1)
+ self.serialport.setDTR(0)
+ time.sleep(0.02)
+ return self.serialport.getCTS()
def telosBReset(self,invokeBSL=0):
# "BSL entry sequence at dedicated JTAG pins"