#!/usr/bin/env python

#GoodFET Chipcon SPI Client
# (C) 2011 Travis Goodspeed

#N.B.,
#Might be CC2420 Specific

import sys;
import binascii;
import array;

from GoodFETCCSPI import GoodFETCCSPI;

if(len(sys.argv)==1):
    print "Usage: %s verb [objects]\n" % sys.argv[0];
    print "%s regs" % sys.argv[0];
    print "%s test" % sys.argv[0];
    print "%s peek 0x$start [0x$stop]" % sys.argv[0];
    print "%s poke 0x$adr 0x$val" % sys.argv[0];
    sys.exit();

#Initialize FET and set baud rate
client=GoodFETCCSPI();
client.serInit()


client.setup();

#Dummy read.
#Might read as all ones if chip has a startup delay.

if(sys.argv[1]=="info"):
    print "Status is %02x" % client.strobe(0x00);
if(sys.argv[1]=="regs"):
    for adr in range(0x10,0x40): #*1024):
        val=client.peek(adr);
        print "%04x:=%02x" % (adr,val);
if(sys.argv[1]=="test"):
    data=client.trans([0x20, 0xde, 0xad]);
    print "%02x %02x" % (ord(data[1]), ord(data[2]));
    data=client.trans([0x40|0x20, 0xde, 0xad]);
    print "%02x %02x" % (ord(data[1]), ord(data[2]));
    
if(sys.argv[1]=="peek"):
    start=0x0000;
    if(len(sys.argv)>2):
        start=int(sys.argv[2],16);
    stop=start;
    if(len(sys.argv)>3):
        stop=int(sys.argv[3],16);
    print "Peeking from %04x to %04x." % (start,stop);
    while start<=stop:
        print "%04x: %02x" % (start,client.peek(start));
        start=start+1;
if(sys.argv[1]=="poke"):
    start=0x0000;
    val=0x00;
    if(len(sys.argv)>2):
        start=int(sys.argv[2],16);
    if(len(sys.argv)>3):
        val=int(sys.argv[3],16);
    print "Poking %02x to become %010x." % (start,val);
    
    client.poke(start,val);