def setUp(self):
self.jtag = JtagEngine(trst=True, frequency=3E6)
self.jtag.configure(vendor=0x403, product=0x6011, interface=1)
self.jtag.reset()
self.tool = JtagTool(self.jtag)
def __init__(self, vendor, product, interface):
self.jtag = JtagEngine()
self.jtag.configure(vendor, product, interface)
self.jtag.reset()
class JtagTestCase(unittest.TestCase):
def setUp(self):
self.jtag = JtagEngine(trst=True, frequency=3E6)
self.jtag.configure(vendor=0x403, product=0x6011, interface=1)
self.jtag.reset()
self.tool = JtagTool(self.jtag)
def tearDown(self):
del self.jtag
def test_idcode_reset(self):
"""Read the IDCODE right after a JTAG reset"""
self.jtag.reset()
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
print "IDCODE (reset): 0x%x" % int(idcode)
def test_idcode_sequence(self):
"""Read the IDCODE using the dedicated instruction"""
instruction = JTAG_INSTR['IDCODE']
self.jtag.write_ir(instruction)
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
print "IDCODE (idcode): 0x%08x" % int(idcode)
def _test_detect_ir_length(self):
"""Detect the instruction register length"""
self.jtag.go_idle()
self.jtag.capture_ir()
self.tool.detect_register_size()
class ArmJtag(object):
"""JTAG helper for ARM core"""
def __init__(self, vendor, product, interface):
self.jtag = JtagEngine()
self.jtag.configure(vendor, product, interface)
self.jtag.reset()
def get_idcode_from_reset(self):
"""Read the IDCODE right after a JTAG reset"""
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
print "IDCODE: 0x%x" % int(idcode)
return int(idcode)
def get_idcode_from_instruction(self):
"""Read the IDCODE using the dedicated instruction"""
instruction = JTAG_INSTR['IDCODE']
self.jtag.write_ir(instruction)
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
revision = idcode[28:32]
partnumber = idcode[12:28]
manufacturer = idcode[1:12]
ieee = idcode[0:1]
print "IDCODE: 0x%x %s %s %s %s" % (int(idcode), revision, partnumber,
manufacturer, ieee)
return idcode
def __init__(self, vendor, product, interface):
self.jtag = JtagEngine()
self.jtag.configure(vendor, product, interface)
self.jtag.reset()
class ArmJtag(object):
"""JTAG helper for ARM core"""
def __init__(self, vendor, product, interface):
self.jtag = JtagEngine()
self.jtag.configure(vendor, product, interface)
self.jtag.reset()
def get_idcode_from_reset(self):
"""Read the IDCODE right after a JTAG reset"""
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
print "IDCODE: 0x%x" % int(idcode)
return int(idcode)
def get_idcode_from_instruction(self):
"""Read the IDCODE using the dedicated instruction"""
instruction = JTAG_INSTR['IDCODE']
self.jtag.write_ir(instruction)
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
revision = idcode[28:32]
partnumber = idcode[12:28]
manufacturer = idcode[1:12]
ieee = idcode[0:1]
print "IDCODE: 0x%x %s %s %s %s" % (int(idcode),
revision, partnumber, manufacturer, ieee)
return idcode
def setUp(self):
self.jtag = JtagEngine(trst=True, frequency=3E6)
self.jtag.configure(vendor=0x403, product=0x6011, interface=1)
self.jtag.reset()
self.tool = JtagTool(self.jtag)
class JtagTestCase(unittest.TestCase):
def setUp(self):
self.jtag = JtagEngine(trst=True, frequency=3E6)
self.jtag.configure(vendor=0x403, product=0x6011, interface=1)
self.jtag.reset()
self.tool = JtagTool(self.jtag)
def tearDown(self):
del self.jtag
def test_idcode_reset(self):
"""Read the IDCODE right after a JTAG reset"""
self.jtag.reset()
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
print "IDCODE (reset): 0x%x" % int(idcode)
def test_idcode_sequence(self):
"""Read the IDCODE using the dedicated instruction"""
instruction = JTAG_INSTR['IDCODE']
self.jtag.write_ir(instruction)
idcode = self.jtag.read_dr(32)
self.jtag.go_idle()
print "IDCODE (idcode): 0x%08x" % int(idcode)
def _test_detect_ir_length(self):
"""Detect the instruction register length"""
self.jtag.go_idle()
self.jtag.capture_ir()
self.tool.detect_register_size()