25 lines
880 B
Plaintext
25 lines
880 B
Plaintext
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; Copyright (c) 2020 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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.program multi_pwm
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.side_set 1
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.wrap_target
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;pull side 0 ; Pull in the next DWord containing the pin states, and time counter
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;out pins, 16 side 1 ; Immediately set the pins to their new state
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;out y, 16 [1] side 0 ; Set the counter
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pull side 0 ; Pull in the next DWord containing the pin states, and time counter
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out pins, 32 side 1 ; Immediately set the pins to their new state
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pull side 0
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out y, 32 side 0 ; Set the counter
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count_check:
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jmp y-- delay side 0 ; Check if the counter is 0, and if so wrap around. If not decrement the counter and jump to the delay
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.wrap
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delay:
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jmp count_check [3] side 1 ; Wait a few cycles then jump back to the loop
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