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The corresponding connection between the design case and the pin connection of the SP7021 motherboard and FPGA daughter board is shown in the following table: 1: U20B on the motherboard is connected to J2 of the FPGA daughter board (Pin pin corresponding, such as 1-51 ...), providing the data transmission channel between the Plus1 main chip on the motherboard and the FPGAImage Removed

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Design Demo	FPGA daughter board			SP7021 mother board
fbio_selftest	J2		U1E	U20B
Top Port Name	Schematic Name		FPGA I/O	Schematic Name
	1	GND		51	GND
	2	GND		52	GND
FPGA_PAD[0]	3	B34_L24_N	T8	53	FBIO_PAD_0
FPGA_PAD[43]	4	B34_L24_P	R8	54	FBIO_PAD_1
	5	VIN		55	VCC(3.3V)
	6	VCCIO34		56	VCC(3.3V)
FPGA_PAD[1]	7	B34_L21_N	V9	57	FBIO_PAD_2
FPGA_PAD[42]	8	B34_L21_P	U9	58	FBIO_PAD_3
FPGA_PAD[2]	9	B34_L18_N	N6	59	FBIO_PAD_4
FPGA_PAD[41]	10	B34_L18_P	M6	60	FBIO_PAD_5
FPGA_PAD[3]	11	B34_L22_N	U6	61	FBIO_PAD_6
FPGA_PAD[40]	12	B34_L22_P	U7	62	FBIO_PAD_7
FPGA_PAD[4]	13	B34_L20_N	V6	63	FBIO_PAD_8
FPGA_PAD[39]	14	B34_L20_P	V7	64	FBIO_PAD_9
FPGA_PAD[5]	15	B34_L23_N	T6	65	FBIO_PAD_10
FPGA_PAD[38]	16	B34_L23_P	R7	66	FBIO_PAD_11
FPGA_PAD[6]	17	B34_L10_N	V4	67	FBIO_PAD_12
FPGA_PAD[37]	18	B34_L10_P	V5	68	FBIO_PAD_13
FPGA_PAD[7]	19	B34_L19_P	R6	69	FBIO_PAD_14
FPGA_PAD[36]	20	B34_L19_N	R5	70	FBIO_PAD_15
FPGA_PAD[8]	21	B34_L8_P	U4	71	FBIO_PAD_16
FPGA_PAD[35]	22	B34_L8_N	U3	72	FBIO_TCLK
FPGA_PAD[9]	23	B34_L9_N	V2	73	FBIO_RCLK
FPGA_PAD[34]	24	B34_L9_P	U2	74	FBIO_PAD_17
FPGA_PAD[10]	25	B34_L7_N	V1	75	FBIO_PAD_18
FPGA_PAD[33]	26	B34_L7_P	U1	76	FBIO_PAD_19
FPGA_PAD[11]	27	B34_L13_P	N5	77	FBIO_PAD_20
FPGA_PAD[32]	28	B34_L13_N	P5	78	FBIO_PAD_21
FPGA_PAD[12]	29	B34_L12_P	T5	79	FBIO_PAD_22
FPGA_PAD[31]	30	B34_L12_N	T4	80	FBIO_PAD_23
FPGA_PAD[13]	31	B34_L11_N	T3	81	FBIO_PAD_24
FPGA_PAD[30]	32	B34_L11_P	R3	82	FBIO_PAD_25
FPGA_PAD[29]	33	B34_L14_P	P4	83	FBIO_PAD_26
FPGA_PAD[28]	34	B34_L14_N	P3	84	FBIO_PAD_27
FPGA_PAD[14]	35	B34_L16_N	N4	85	FBIO_PAD_28
FPGA_PAD[27]	36	B34_L16_P	M4	86	FBIO_PAD_29
FPGA_PAD[15]	37	B34_L17_N	T1	87	FBIO_PAD_30
FPGA_PAD[26]	38	B34_L17_P	R1	88	FBIO_PAD_31
FPGA_PAD[16]	39	B34_L15_N	R2	89	FBIO_PAD_32
FPGA_PAD[25]	40	B34_L15_P	P2	90	FBIO_PAD_33
FPGA_PAD[17]	41	B34_L3_N	N1	91	FBIO_PAD_34
FPGA_PAD[24]	42	B34_L3_P	N2	92	FBIO_PAD_35
FPGA_PAD[18]	43	B34_L1_N	M1	93	FBIO_PAD_RSTB
FPGA_PAD[23]	44	B34_L1_P	L1	94	EXT0_INT
	45	VCCIO34		95	VCC(3.3V)
	46	VIN		96	VCC(3.3V)
FPGA_PAD[19]	47	B34_L4_P	M3	97	EXT1_INT
FPGA_PAD[20]	48	B34_L4_N	M2	98
	49	GND		99	GND
	50	GND		100	GND

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