166 lines
3.7 KiB
C
166 lines
3.7 KiB
C
#include "d51_util.h"
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//Display unsigned 32-bit number through m15
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//Read as follows: 1230 = || ||| |||| | (note always ending toggle)
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void m15_print(uint32_t x)
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{
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int8_t t;
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uint32_t n;
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uint32_t p, p2;
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if (x < 10) t = 0;
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else if (x < 100) t = 1;
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else if (x < 1000) t = 2;
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else if (x < 10000) t = 3;
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else if (x < 100000) t = 4;
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else if (x < 1000000) t = 5;
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else if (x < 10000000) t = 6;
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else if (x < 100000000) t = 7;
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else if (x < 1000000000) t = 8;
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else t = 9;
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while (t >= 0)
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{
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p2 = t;
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p = 1;
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while (p2--) p *= 10;
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n = x / p;
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x -= n * p;
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while (n > 0)
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{
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m15_on;
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n--;
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m15_off;
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}
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//Will always end with an extra toggle
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m15_on;
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t--;
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m15_off;
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}
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}
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//Display unsigned 32-bit number through debug led
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//Read as follows: 1230 = [*] [* *] [* * *] [**] (note zero is fast double flash)
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#define DLED_ONTIME 1000000
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#define DLED_PAUSE 1500000
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volatile uint32_t w;
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void dled_print(uint32_t x, uint8_t long_pause)
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{
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int8_t t;
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uint32_t n;
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uint32_t p, p2;
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if (x < 10) t = 0;
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else if (x < 100) t = 1;
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else if (x < 1000) t = 2;
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else if (x < 10000) t = 3;
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else if (x < 100000) t = 4;
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else if (x < 1000000) t = 5;
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else if (x < 10000000) t = 6;
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else if (x < 100000000) t = 7;
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else if (x < 1000000000) t = 8;
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else t = 9;
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while (t >= 0)
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{
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p2 = t;
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p = 1;
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while (p2--) p *= 10;
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n = x / p;
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x -= n * p;
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if (!n)
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{
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led_on;
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for (w = DLED_ONTIME / 4; w; w--);
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led_off;
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for (w = DLED_ONTIME / 4; w; w--);
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led_on;
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for (w = DLED_ONTIME / 4; w; w--);
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led_off;
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for (w = DLED_ONTIME / 4; w; w--);
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n--;
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}
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else
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{
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while (n > 0)
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{
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led_on;
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for (w = DLED_ONTIME; w; w--);
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led_off;
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for (w = DLED_ONTIME / 2; w; w--);
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n--;
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}
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}
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for (w = DLED_PAUSE; w; w--);
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t--;
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}
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if (long_pause)
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{
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for (w = DLED_PAUSE * 4; w; w--);
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}
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}
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#ifdef DEBUG_BOOT_TRACING
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volatile uint32_t debug_code;
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void EIC_15_Handler()
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{
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//This is only for non-functional keyboard troubleshooting and should be disabled after boot
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//Intention is to lock up the keyboard here with repeating debug led code
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while (1)
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{
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dled_print(debug_code, 1);
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}
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}
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void debug_code_init(void)
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{
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DBGC(DC_UNSET);
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//Configure Ports for EIC on PB31
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PORT->Group[1].DIRCLR.reg = 1 << 31; //Input
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PORT->Group[1].OUTSET.reg = 1 << 31; //High
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PORT->Group[1].PINCFG[31].bit.INEN = 1; //Input Enable
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PORT->Group[1].PINCFG[31].bit.PULLEN = 1; //Pull Enable
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PORT->Group[1].PINCFG[31].bit.PMUXEN = 1; //Mux Enable
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PORT->Group[1].PMUX[15].bit.PMUXO = 0; //Mux A
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//Enable CLK_EIC_APB
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MCLK->APBAMASK.bit.EIC_ = 1;
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//Configure EIC
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EIC->CTRLA.bit.SWRST = 1;
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while (EIC->SYNCBUSY.bit.SWRST) {}
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EIC->ASYNCH.reg = 1 << 15;
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EIC->INTENSET.reg = 1 << 15;
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EIC->CONFIG[1].bit.SENSE7 = 2;
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EIC->CTRLA.bit.ENABLE = 1;
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while (EIC->SYNCBUSY.bit.ENABLE) {}
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//Enable EIC IRQ
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NVIC_EnableIRQ(EIC_15_IRQn);
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}
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void debug_code_disable(void)
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{
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//Disable EIC IRQ
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NVIC_DisableIRQ(EIC_15_IRQn);
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//Disable EIC
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EIC->CTRLA.bit.ENABLE = 0;
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while (EIC->SYNCBUSY.bit.ENABLE) {}
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//Disable CLK_EIC_APB
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MCLK->APBAMASK.bit.EIC_ = 0;
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}
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#else
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void debug_code_init(void) {}
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void debug_code_disable(void) {}
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#endif //DEBUG_BOOT_TRACING
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