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move pin-adding into separate function in JTAG class
author
Luke Kenneth Casson Leighton
<lkcl@lkcl.net>
Sun, 28 Nov 2021 11:22:27 +0000
(11:22 +0000)
committer
Luke Kenneth Casson Leighton
<lkcl@lkcl.net>
Sun, 28 Nov 2021 11:22:27 +0000
(11:22 +0000)
src/spec/jtag.py
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diff --git
a/src/spec/jtag.py
b/src/spec/jtag.py
index e9bc75d5565442b9a7677f6e64dd3b40a514ffae..56aadbb839707b8041cf6fa4fede354508790bf2 100644
(file)
--- a/
src/spec/jtag.py
+++ b/
src/spec/jtag.py
@@
-80,11
+80,7
@@
class JTAG(TAP, Pins):
# we store the boundary scan register offset in the IOConn record
self.ios = {} # these are enumerated in external_ports
self.scan_len = 0
# we store the boundary scan register offset in the IOConn record
self.ios = {} # these are enumerated in external_ports
self.scan_len = 0
- for fn, pin, iotype, pin_name, scan_idx in list(self):
- io = self.add_io(iotype=iotype, name=pin_name)
- io._scan_idx = scan_idx # hmm shouldn't really do this
- self.scan_len += scan_idx # record full length of boundary scan
- self.ios[pin_name] = io
+ self.add_pins(list(self))
# this is redundant. or maybe part of testing, i don't know.
self.sr = self.add_shiftreg(ircode=4, length=3,
# this is redundant. or maybe part of testing, i don't know.
self.sr = self.add_shiftreg(ircode=4, length=3,
@@
-111,6
+107,13
@@
class JTAG(TAP, Pins):
self.sr_en = self.add_shiftreg(ircode=11, length=len(en_sigs),
domain=domain)
self.sr_en = self.add_shiftreg(ircode=11, length=len(en_sigs),
domain=domain)
+ def add_pins(self, pinlist):
+ for fn, pin, iotype, pin_name, scan_idx in pinlist:
+ io = self.add_io(iotype=iotype, name=pin_name)
+ io._scan_idx = scan_idx # hmm shouldn't really do this
+ self.scan_len += scan_idx # record full length of boundary scan
+ self.ios[pin_name] = io
+
def elaborate(self, platform):
m = super().elaborate(platform)
m.d.comb += self.sr.i.eq(self.sr.o) # loopback as part of test?
def elaborate(self, platform):
m = super().elaborate(platform)
m.d.comb += self.sr.i.eq(self.sr.o) # loopback as part of test?