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openocd/stream: Expose chain parameter.

This commit is contained in:
Florent Kermarrec 2021-05-06 15:25:18 +02:00
parent aea1e7fb20
commit 24105f12d5
1 changed files with 2 additions and 2 deletions
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4
litex/build/openocd.py
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@ -40,7 +40,7 @@ class OpenOCD(GenericProgrammer):
self.call(["openocd", "-f", config, "-c", script]) self.call(["openocd", "-f", config, "-c", script])
def stream(self, port=20000): def stream(self, port=20000, chain=1):
""" """
Create a TCP server to stream data to/from the internal JTAG TAP of the FPGA Create a TCP server to stream data to/from the internal JTAG TAP of the FPGA
@ -139,7 +139,7 @@ proc jtagstream_serve {tap port} {
write_to_file("stream.cfg", cfg) write_to_file("stream.cfg", cfg)
script = "; ".join([ script = "; ".join([
"init", "init",
"irscan $_CHIPNAME.tap $_USER1", "irscan $_CHIPNAME.tap {:d}".format(0x1 + chain),
"jtagstream_serve $_CHIPNAME.tap {:d}".format(port), "jtagstream_serve $_CHIPNAME.tap {:d}".format(port),
"exit", "exit",
]) ])