96 lines
2.5 KiB
Plaintext
96 lines
2.5 KiB
Plaintext
;
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; Copyright (c) 2023 Raspberry Pi (Trading) Ltd.
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;
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; SPDX-License-Identifier: BSD-3-Clause
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;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; Normal SPI for W55RP20
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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.program wiznet_spi_write_read
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.side_set 1
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public write_bits:
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out pins, 1 side 0
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jmp x-- write_bits side 1
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set pins 0 side 0
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public write_end:
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read_byte_delay:
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set pindirs 0 side 0
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read_byte:
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set x 6 side 1
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read_bits:
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in pins, 1 side 0
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jmp x-- read_bits side 1
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in pins, 1 side 0
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jmp y-- read_byte side 0
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public read_end:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; QSPI Single for W6300
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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.program wizchip_pio_spi_single_write_read
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.side_set 1
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public write_bits:
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out pins, 1 side 0
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jmp x-- write_bits side 1
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set pins 0 side 0
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public write_bits_end:
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read_byte_delay:
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set pindirs 0 side 0
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read_byte:
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set x 6 side 1
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read_bits:
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in pins, 1 side 0
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jmp x-- read_bits side 1
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in pins, 1 side 0
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jmp y-- read_byte side 0
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public read_bits_end:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; QSPI Dual for W6300
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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.program wizchip_pio_spi_dual_write_read
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.side_set 1
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public write_bits:
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out pins, 2 side 0
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jmp x-- write_bits side 1
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set pins 0 side 0
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public write_bits_end:
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read_byte_delay:
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set pindirs 0 side 0
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read_byte:
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set x 2 side 1
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read_bits:
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in pins, 2 side 0
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jmp x-- read_bits side 1
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in pins, 2 side 0
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jmp y-- read_byte side 0
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public read_bits_end:
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; QSPI Quad for W6300
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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.program wizchip_pio_spi_quad_write_read
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.side_set 1
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write_bits:
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out pins, 4 side 0
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jmp x-- write_bits side 1
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set pins 0 side 0
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public write_bits_end:
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read_byte_delay:
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set pindirs 0 side 0
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read_byte:
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set x 0 side 1
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read_bits:
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in pins, 4 side 0
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jmp x-- read_bits side 1
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in pins, 4 side 0
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jmp y-- read_byte side 0
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public read_bits_end:
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