diff options
Diffstat (limited to 'decoders')
| -rw-r--r-- | decoders/jtag/jtag.py | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/decoders/jtag/jtag.py b/decoders/jtag/jtag.py index 4c77797..5d40412 100644 --- a/decoders/jtag/jtag.py +++ b/decoders/jtag/jtag.py @@ -36,9 +36,11 @@ class Decoder(srd.Decoder): {'id': 'tdo', 'name': 'TDO', 'desc': 'Test data output'}, {'id': 'tck', 'name': 'TCK', 'desc': 'Test clock'}, {'id': 'tms', 'name': 'TMS', 'desc': 'Test mode select'}, - {'id': 'trst', 'name': 'TRST', 'desc': 'Test reset'}, ] - optional_probes = [] # TODO? SRST? + optional_probes = [ + # {'id': 'trst', 'name': 'TRST#', 'desc': 'Test reset'}, + # {'id': 'srst', 'name': 'SRST#', 'desc': 'System reset'}, + ] options = {} annotations = [ ['ASCII', 'TODO: description'], @@ -48,7 +50,7 @@ class Decoder(srd.Decoder): # self.state = 'TEST-LOGIC-RESET' self.state = 'RUN-TEST/IDLE' self.oldstate = None - self.oldpins = (-1, -1, -1, -1, -1) + self.oldpins = (-1, -1, -1, -1) self.oldtck = -1 self.bits_tdi = [] self.bits_tdo = [] @@ -104,7 +106,7 @@ class Decoder(srd.Decoder): else: raise Exception('Invalid state: %s' % self.state) - def handle_rising_tck_edge(self, tdi, tdo, tck, tms, trst): + def handle_rising_tck_edge(self, tdi, tdo, tck, tms): # Rising TCK edges always advance the state machine. self.advance_state_machine(tms) @@ -154,8 +156,8 @@ class Decoder(srd.Decoder): self.oldpins = pins # Get individual pin values into local variables. - # TODO: Handle optional pins. - (tdi, tdo, tck, tms, trst) = pins + # TODO: Handle optional pins (TRST, SRST). + (tdi, tdo, tck, tms) = pins # We only care about TCK edges (either rising or falling). if (self.oldtck == tck): @@ -165,11 +167,11 @@ class Decoder(srd.Decoder): self.ss, self.es = ss, es # self.put(self.ss, self.es, self.out_ann, - # [0, ['tdi:%s, tdo:%s, tck:%s, tms:%s, trst:%s' \ - # % (tdi, tdo, tck, tms, trst)]]) + # [0, ['tdi:%s, tdo:%s, tck:%s, tms:%s' \ + # % (tdi, tdo, tck, tms)]]) if (self.oldtck == 0 and tck == 1): - self.handle_rising_tck_edge(tdi, tdo, tck, tms, trst) + self.handle_rising_tck_edge(tdi, tdo, tck, tms) self.oldtck = tck |