Comments (2)
My first idea was to introduce a variant
arg to select between original and new. But both seems really different for pinout/LCD/etc.
It make more sense to introduce a new platform/target called sipeed_tang_nano_1k.py.
Could you explain a bit more changes required to GW1NPLL ?
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From GW1NZ series of FPGA Products (look at LV - C6/I5) ( https://dl.sipeed.com/shareURL/TANG/Nano%201K/6_Chip_Manual/EN)
@staticmethod
def get_vco_freq_range(device):
vco_freq_range = None
if device.startswith('GW1NZ'): #Add this FPGA and its VCO (or change to startwith"GW1NZ-1")
if 'C6/I5' in device:
vco_freq_range = (400e6, 800e6) # datasheet says (400, 800)
@staticmethod
def get_pfd_freq_range(device):
pfd_freq_range = None
if device.startswith('GW1NZ'): #Add this FPGA and its PFD (or change to startwith"GW1NZ-1")
if 'C6/I5' in device:
pfd_freq_range = (3e6, 400e6) # datasheet says (3, 400)
But I'm not sure that this is enough
Device and part number is from https://github.com/sipeed/TangNano-1K-examples/blob/main/example_led/led_prj/src/led_prj.cst
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