"""Open the serial port"""
if port is None:
- port=os.environ.get("GOODFET");
-
+ glob_list = glob.glob(os.environ.get("GOODFET"));
+ if len(glob_list) > 0:
+ port = glob_list[0];
if port is None:
glob_list = glob.glob("/dev/tty.usbserial*");
if len(glob_list) > 0:
def SPIsetup(self):
"""Moved the FET into the SPI application."""
self.writecmd(0x01,0x10,0,self.data); #SPI/SETUP
+
def SPItrans8(self,byte):
"""Read and write 8 bits by SPI."""
0xC22013: "MX25L4005",
0x204011: "M45PE10"
};
+ JEDECsizes={0x14: 0x100000,
+ 0x13: 0x080000,
+ 0x12: 0x040000,
+ 0x11: 0x020000}
+ JEDECsize=0;
def SPIjedec(self):
"""Grab an SPI Flash ROM's JEDEC bytes."""
data=[0x9f, 0, 0, 0];
self.JEDECmanufacturer=ord(data[1]);
self.JEDECtype=ord(data[2]);
self.JEDECcapacity=ord(data[3]);
+ self.JEDECsize=self.JEDECsizes.get(self.JEDECcapacity);
self.JEDECdevice=(ord(data[1])<<16)+(ord(data[2])<<8)+ord(data[3]);
return data;
def SPIpeek(self,adr):
self.SPItrans(data);
return ord(self.data[4]);
def SPIpeekblock(self,adr):
- """Grab a byte from an SPI Flash ROM."""
+ """Grab a block from an SPI Flash ROM. Block size is unknown"""
data=[(adr&0xFF0000)>>16,
(adr&0xFF00)>>8,
adr&0xFF];
self.writecmd(0x01,0x02,3,data);
return self.data;
-
def SPIpokebyte(self,adr,val):
self.SPIpokebytes(adr,[val]);
def SPIpokebytes(self,adr,data):
print "Initializing MSP430.";
self.writecmd(0x11,0x10,0,self.data);
-
-
+ def I2Csetup(self):
+ """Move the FET into the I2C application."""
+ self.writecmd(0x02,0x10,0,self.data); #SPI/SETUP
+ def I2Cstart(self):
+ """Start an I2C transaction."""
+ self.writecmd(0x02,0x20,0,self.data); #SPI/SETUP
+ def I2Cstop(self):
+ """Stop an I2C transaction."""
+ self.writecmd(0x02,0x21,0,self.data); #SPI/SETUP
+ def I2Cread(self,len=1):
+ """Read len bytes by I2C."""
+ self.writecmd(0x02,0x00,1,[len]); #SPI/SETUP
+ return self.data;
+ def I2Cwrite(self,bytes):
+ """Write bytes by I2C."""
+ self.writecmd(0x02,0x01,len(bytes),bytes); #SPI/SETUP
+ return ord(self.data[0]);
def CCsetup(self):
"""Move the FET into the CC2430/CC2530 application."""
#print "Initializing Chipcon.";