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tornado/fw/tornado.c: update signal processing from sim/alg.c
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@ -96,10 +96,10 @@ static uint16_t adc(bool x)
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}
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#define E_SHIFT 3 /* ~ 0.1 */
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#define M_SHIFT 11 /* ~ 1/sample_rate */
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#define E_SHIFT 8 /* ~ 0.06 */
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#define M_SHIFT 11 /* ~ 2/sample_rate */
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#define HYSTERESIS 14
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#define HYSTERESIS 9 /* 1 g / 3 */
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static const uint8_t img[] PROGMEM = {
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@ -115,8 +115,8 @@ static volatile uint16_t sample_t = 0, sample_v;
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static void zxing(uint16_t x, uint16_t y)
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{
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static uint16_t e = 512 << E_SHIFT;
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static uint32_t m = 512 << M_SHIFT;
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static uint32_t e = (uint32_t) 512 << E_SHIFT;
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static uint32_t m = (uint32_t) 512 << M_SHIFT;
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int16_t d;
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static bool up = 0;
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static bool on = 0;
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@ -125,10 +125,9 @@ static void zxing(uint16_t x, uint16_t y)
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sample_t++;
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sample_v = x;
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return;
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e = y+(e-(e >> E_SHIFT));
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m = y+(m-(m >> M_SHIFT));
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e = x+(e-(e >> E_SHIFT));
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m = x+(m-(m >> M_SHIFT));
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d = (e >> E_SHIFT)-(m >> M_SHIFT);
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if (up) {
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if (d < -HYSTERESIS)
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@ -227,10 +226,15 @@ int main(void)
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uint32_t n = 0;
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sample = zxing;
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/* MMC doesn't work when running from battery, probably because we
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have no regulation. Just disable it for now. */
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#if 0
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if (!mmc_init())
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panic();
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#endif
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accel_start();
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sei();
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while (1);
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while (1) {
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uint16_t t, v;
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