47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
import subprocess
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from mibuild.generic_programmer import GenericProgrammer
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def _run_urjtag(cmds):
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with subprocess.Popen("jtag", stdin=subprocess.PIPE) as process:
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process.stdin.write(cmds.encode("ASCII"))
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process.communicate()
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class UrJTAG(GenericProgrammer):
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needs_bitreverse = True
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def load_bitstream(self, bitstream_file):
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cmds = """cable milkymist
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detect
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pld load {bitstream}
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quit
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""".format(bitstream=bitstream_file)
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_run_urjtag(cmds)
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def flash(self, address, data_file):
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flash_proxy = self.find_flash_proxy()
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cmds = """cable milkymist
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detect
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pld load "{flash_proxy}"
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initbus fjmem opcode=000010
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frequency 6000000
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detectflash 0
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endian big
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flashmem "{address}" "{data_file}" noverify
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""".format(flash_proxy=flash_proxy, address=address, data_file=data_file)
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_run_urjtag(cmds)
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class XC3SProg(GenericProgrammer):
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needs_bitreverse = False
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def __init__(self, cable, flash_proxy_basename=None):
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Programmer.__init__(self, flash_proxy_basename)
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self.cable = cable
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def load_bitstream(self, bitstream_file):
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subprocess.call(["xc3sprog", "-v", "-c", self.cable, bitstream_file])
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def flash(self, address, data_file):
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flash_proxy = self.find_flash_proxy()
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subprocess.call(["xc3sprog", "-v", "-c", self.cable, "-I"+flash_proxy, "{}:w:0x{:x}:BIN".format(data_file, address)])
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