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tornado/fw/tornado.c: use LED_* to communicate with LED bar; update demo
Instead of a counter, which worked okay with 16 LEDs but is useless with all 64 of them, we now show a filling/emptying bar. The update speed is high enough that rotation results in about a quarter-circle pattern.
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@ -17,6 +17,8 @@
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MASK(port, LED_DS) | MASK(port, LED_LCLK) | MASK(port, LED_SCLK))
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#if 0
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/*
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* @@@ For testing, connect the LED bar via the 8:10 card slot, so that it
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* can be disconnected without soldering.
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@ -27,19 +29,33 @@
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#define DS CARD_CLK
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#define VDD CARD_CMD
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#else
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static void send(uint16_t pattern)
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#define SCLK LED_SCLK
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#define LCLK LED_LCLK
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#define DS LED_DS
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#endif
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#define N_LEDS 64
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static void send(uint8_t pattern[N_LEDS/8])
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{
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uint8_t i;
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uint8_t i, j, mask;
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for (i = 0; i != 16; i++) {
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if (pattern & 0x8000)
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SET(DS);
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else
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CLR(DS);
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SET(SCLK);
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CLR(SCLK);
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pattern <<= 1;
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for (i = 0; i != N_LEDS/8; i++) {
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mask = 1;
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for (j = 0; j != 8; j++) {
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if (pattern[i] & mask)
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SET(DS);
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else
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CLR(DS);
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SET(SCLK);
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CLR(SCLK);
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mask <<= 1;
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}
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}
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SET(LCLK);
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CLR(LCLK);
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@ -80,8 +96,9 @@ static uint16_t adc(bool x)
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int main(void)
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{
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static uint8_t p[N_LEDS/8];
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uint8_t mode = 0;
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uint16_t n = 0;
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uint16_t n = 0, v;
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PORTB = HIGH(B);
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PORTC = HIGH(C);
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@ -97,8 +114,11 @@ int main(void)
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OUT(LCLK);
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OUT(DS);
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#ifdef VDD
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SET(VDD);
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OUT(VDD);
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#endif
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while (1) {
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while (!PIN(SW_SW));
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@ -110,15 +130,28 @@ int main(void)
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mode = 2;
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switch (mode) {
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case 1:
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send(adc(0));
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n = adc(0);
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p[0] = n;
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p[1] = n >> 8;
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p[2] = p[3] = p[4] = p[5] = p[6] = p[7] = 0;
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send(p);
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break;
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case 2:
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send(adc(1));
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n = adc(1);
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p[0] = n;
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p[1] = n >> 8;
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p[2] = p[3] = p[4] = p[5] = p[6] = p[7] = 0;
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send(p);
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break;
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default:
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send(n);
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v = 63-n;
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if (n & 64)
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p[(v >> 3) & 7] &= ~(1 << (v & 7));
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else
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p[(v >> 3) & 7] |= 1 << (v & 7);
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send(p);
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n++;
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}
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// _delay_ms(100);
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_delay_ms(1);
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}
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}
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