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comparison ctrl.pio @ 21:8d759cf5a9e7

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Load correct program, use a separate IRQ
author Daniel O'Connor <darius@dons.net.au>
date Tue, 25 Feb 2025 15:46:32 +1030
parents f1e44afb41a3
children 6070d2e66b4c
comparison
equal deleted inserted replaced
20:6aaa9658df1e 21:8d759cf5a9e7
1 ; 1 ;
2 ; Copyright (c) 2025 Daniel O'Connor 2 ; Copyright (c) 2025 Daniel O'Connor
3 ; 3 ;
4 4
5 .program ctrl 5 .program ctrl
6 .define TRIGGER_IRQ 0 6 .define TRIGGER_IRQ 1
7 ; Assert all 0s 7 ; Assert all 0s
8 mov pins, null 8 mov pins, null
9 ; Wait for start trigger and clear IRQ 9 ; Wait for start trigger and clear IRQ
10 wait 1 irq TRIGGER_IRQ 10 wait 1 irq TRIGGER_IRQ
11 irq clear TRIGGER_IRQ
12 .wrap_target 11 .wrap_target
13 out pins 8 12 out pins 8
14 nop 13 nop
15 out pins 8 14 out pins 8
16 nop 15 nop
20 nop 19 nop
21 .wrap 20 .wrap
22 21
23 % c-sdk { 22 % c-sdk {
24 static inline void ctrl_program_init(PIO pio, uint sm, uint offset, uint pin, uint clkdiv) { 23 static inline void ctrl_program_init(PIO pio, uint sm, uint offset, uint pin, uint clkdiv) {
25 pio_sm_config c = dac_program_get_default_config(offset); 24 pio_sm_config c = ctrl_program_get_default_config(offset);
26 25
27 // Set the OUT base pin to the provided `pin` parameter. 26 // Set the OUT base pin to the provided `pin` parameter.
28 // Note: We only need 6 pins but pull a byte at a time to make 27 // Note: We only need 6 pins but pull a byte at a time to make
29 // generating the data simpler 28 // generating the data simpler
30 sm_config_set_out_pins(&c, pin, 6); 29 sm_config_set_out_pins(&c, pin, 6);