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Simple PCIe FMC carrier SPEC
Commit ea51ad5e authored by Federico Vaga's avatar Federico Vaga
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sw:py: add method to program the FPGA 

Signed-off-by: Federico Vaga's avatarFederico Vaga <federico.vaga@cern.ch>
parent a108596a
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software/PySPEC/PySPEC/PySPEC.py
View file @ ea51ad5e
......@@ -24,6 +24,22 @@ class PySPEC:
self.debugfs = "/sys/kernel/debug/0000:{:s}".format(self.pci_id)
self.debugfs_fpga = os.path.join(self.debugfs, "spec-0000:{:s}".format(self.pci_id))
def program_fpga(self, bitstream):
"""
Program the FPGA with the given bitstream
:var path: path to bitstream
:raise OSError: on failure
"""
with open("/sys/module/firmware_class/parameters/path", "r") as f:
prev = f.read()
with open("/sys/module/firmware_class/parameters/path", "w") as f:
f.write(os.path.dirname(bitstream))
with open(os.path.join(self.debugfs, "fpga_firmware"), "w") as f:
f.write(os.path.basename(bitstream))
with open("/sys/module/firmware_class/parameters/path", "w") as f:
f.write(os.path.dirname(prev))
@contextmanager
def dma(self):
"""
......
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