.program datastream 

public start:   

	PULL block
	MOV X, OSR

.wrap_target
	PULL noblock
	OUT NULL, 16

	SET Y,6
loop:
	OUT PINS,1 [4]
	SET PINS,0 [4]
	OUT PINS,1 [4]
	SET PINS,0 [3]
	JMP Y-- loop

	OUT PINS,1 [4]
	SET PINS,0 [4]
	OUT PINS,1 [4]
	SET PINS,0 [1]

.wrap


% c-sdk {
static inline void datastream_program_init(PIO pio, uint sm, uint offset, int dout) {
	pio_set_gpio_base(pio, 0);
	pio_gpio_init(pio, dout);
	pio_sm_set_consecutive_pindirs(pio, sm, dout, 1, true);
	pio_sm_config c = datastream_program_get_default_config(offset);
	sm_config_set_out_shift(&c, false, false, 0);
	sm_config_set_fifo_join(&c, PIO_FIFO_JOIN_TX);
	sm_config_set_clkdiv(&c, 3.0);
    sm_config_set_out_pin_base(&c, dout);
    sm_config_set_out_pin_count(&c, 1);
    sm_config_set_set_pin_base(&c, dout);
    sm_config_set_set_pin_count(&c, 1);
	pio_sm_init(pio, sm, offset, &c);
}
%}