#
# This code is being rewritten and refactored. You've been warned!
-import sys, time, string, cStringIO, struct, glob, serial, os;
+import sys, time, string, cStringIO, struct, glob, os;
from GoodFET import GoodFET;
class GoodFETSPI(GoodFET):
+ APP=0x01;
def SPIsetup(self):
"""Move the FET into the SPI application."""
self.writecmd(0x01,0x10,0,self.data); #SPI/SETUP
READ=0x03;
WRITE=0x02;
- def peek8(self,adr):
+ def peek8(self,adr,memory="vn"):
"""Read a byte from the given address."""
data=self.SPItrans([self.READ,(adr>>8)&0xFF,adr&0xFF,0x00]);
return ord(data[3]);
0xC22015: "MX25L1605D",
0xC22014: "MX25L8005",
0xC22013: "MX25L4005",
- 0x204011: "M45PE10"
+ 0x204011: "M45PE10",
+ 0x202014: "M25P80",
+ 0x1f4501: "AT24DF081",
};
JEDECsizes={0x17: 0x800000,
JEDECsize=0;
def SPIjedec(self):
- """Grab an SPI Flash ROM's JEDEC bytes."""
+ """Grab an SPI Flash ROM's JEDEC bytes. Some chips don't implement
+ this, such as Numonyx M25P* except in the 110nm processed."""
data=[0x9f, 0, 0, 0];
data=self.SPItrans(data);
-
+ jedec=0;
self.JEDECmanufacturer=ord(data[1]);
- self.JEDECtype=ord(data[2]);
- self.JEDECcapacity=ord(data[3]);
+ if self.JEDECmanufacturer==0xFF:
+ self.JEDECtype=0x20;
+ self.JEDECcapacity=0x14;
+ jedec=0x202014;
+ else:
+ self.JEDECtype=ord(data[2]);
+ self.JEDECcapacity=ord(data[3]);
+ jedec=(ord(data[1])<<16)+(ord(data[2])<<8)+ord(data[3]);
self.JEDECsize=self.JEDECsizes.get(self.JEDECcapacity);
if self.JEDECsize==None:
self.JEDECsize=0;
- self.JEDECdevice=(ord(data[1])<<16)+(ord(data[2])<<8)+ord(data[3]);
+
+ if jedec==0x1F4501:
+ self.JEDECsize=1024**2;
+ self.JEDECdevice=jedec;
return data;
def SPIpeek(self,adr):
"""Grab a byte from an SPI Flash ROM."""