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fw/: simple image test mode (still untested)
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@ -17,6 +17,16 @@
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#include "rf.h"
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#include "dispatch.h"
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#include "sweep.h"
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#include "image.h"
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static struct sweep sweep = {
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.wait_ticks = 100000, /* 100 ms */
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.pixel_ticks = 5000, /* 5 ms */
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.left = 0,
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.right = MAX_LINES,
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.forward = 1,
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};
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static const struct handler *protos[] = {
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@ -42,5 +52,7 @@ int main(void)
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got = rf_recv(buf, sizeof(buf));
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if (got > 2)
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dispatch(buf, got-2, protos);
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if (!sweeping)
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sweep_image(&sweep);
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}
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}
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17
fw/sweep.c
17
fw/sweep.c
@ -21,7 +21,10 @@
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#include "sweep.h"
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static uint32_t t_sw; /* cumulative number of timer ticks in sweep */
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volatile bool sweeping = 0;
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static volatile uint32_t t_sw; /* cumulative number of timer ticks in sweep */
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static uint16_t wait_periods; /* number of periods to wait before image */
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static uint16_t wait_period; /* ticks in wait period */
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@ -67,14 +70,16 @@ ISR(TIMER1_OVF_vect)
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/* wait until the next pixel (or slow down if we're done) */
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if (curr_line == end_line)
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if (curr_line == end_line) {
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OCR1A = 0xffff;
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else
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sweeping = 0;
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} else {
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OCR1A = pixel_ticks;
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}
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}
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void image_sweep(const struct sweep *sweep)
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void sweep_image(const struct sweep *sweep)
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{
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TCCR1B = 0; /* stop the timer */
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@ -129,6 +134,10 @@ void image_sweep(const struct sweep *sweep)
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1 << WGM13 | /* WG Mode 15, continued */
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1 << WGM12 |
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1 << CS11; /* clkIO/8 */
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sweeping = 1;
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sei();
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}
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@ -27,7 +27,10 @@ struct sweep {
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};
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void image_sweep(const struct sweep *sweep);
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extern volatile bool sweeping;
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void sweep_image(const struct sweep *sweep);
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void sweep_init(void);
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#endif /* !SWEEP_H */
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