106 lines
2.1 KiB
Python
106 lines
2.1 KiB
Python
import pandas as pd
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# Get dictionaries of:
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# - Non-global GPIO to FPGA mapping
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# - Global GPIO to FPGA mapping
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# (Ordered)
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def GPIOMapping():
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# Standard extraction of data from excel file
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data = pd.read_excel("nmigen/FPGA_pins.xlsx", skiprows = range(1,2))
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df = pd.DataFrame(data, columns=["Designator", "Pin Name", "Net"])
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stm32 = df[df.Net.str.startswith("STM32")]
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# Change some GPIO mapping for Nucleo-H743ZI2
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# Created a mapping from old pins to new pins
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old_to_new_dict = {
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# Old : New
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"PC1" :"PB1" ,
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"PC4" :"PC2" ,
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"PC5" :"PF10" ,
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"PA1" :"PB2" ,
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"PA7" :"PE9" ,
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"PA8" :"PF2" ,
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"PA9" :"PF1" ,
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"PA10" :"PF0" ,
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"PB1" :"PF4" ,
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"PC2" :"PF5" ,
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"PA2" :"PF6" ,
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"PB6" :"PG6" ,
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"PE13" :"PG12" ,
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"PF14" :"PE14" ,
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"PE14" :"PE6" ,
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}
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# Extract data from stm32 dataframe to a dictionary
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gpio_dict = {}
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global_gpio_dict = {}
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for index, row in stm32.iterrows():
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# Replace old pins with new pins
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# Note: There are 2 PE6 pins on Nucleo-H743ZI2
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# This will remove 1 mapping of PE6, keys cannot be duplicated
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key = row["Net"].split("_")[1]
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if key in old_to_new_dict:
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key = old_to_new_dict.pop(key)
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dict_entry = {key: row["Designator"]}
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# Insert mappings into dictionary
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if "BIN" in row["Pin Name"]:
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global_gpio_dict.update(dict_entry)
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else:
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gpio_dict.update(dict_entry)
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return gpio_dict, global_gpio_dict
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# Function to provide mapping EEM pins to differential pins
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# Usage:
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# Positive pin: <returned>[<eem_port_val>][<eem_port_ldvs_num>][0]
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# Negative pin: <returned>[<eem_port_val>][<eem_port_ldvs_num>][1]
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def diffMapping():
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eem0 = [
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# P+ve , N-ve
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[ "J3" , "H1" ],
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[ "F5" , "B1" ],
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[ "C1" , "C2" ],
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[ "F4" , "D2" ],
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[ "G5" , "D1" ],
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[ "G4" , "E3" ],
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[ "H5" , "E2" ],
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[ "G3" , "F3" ],
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]
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eem1 = [
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# P+ve , N-ve
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[ "L6" , "L3" ],
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[ "H6" , "F1" ],
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[ "H4" , "G2" ],
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[ "J4" , "H2" ],
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[ "J2" , "J1" ],
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[ "K1" , "K3" ],
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[ "L4" , "L1" ],
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[ "K4" , "M1" ],
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]
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eem2 = [
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# P+ve , N-ve
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[ "J5" , "G1" ],
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[ "K5" , "M2" ],
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[ "L7" , "N2" ],
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[ "M6" , "M3" ],
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[ "L5" , "N3" ],
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[ "P1" , "M4" ],
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[ "P2" , "M5" ],
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[ "R1" , "N4" ],
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]
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return [eem0, eem1, eem2]
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