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()
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)