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34 lines
733 B
Markdown
34 lines
733 B
Markdown
Chronometer for downhill competitions
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## Pinout
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- PA11/12 - USB
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- PA9(Tx),PA10 (debug mode) - USART1 - debug console
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- PA2(Tx), PA3 - USART2 - GPS
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- PB10(Tx), PB11 - USART3 - LIDAR - TRIG3
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- PA1 - PPS signal from GPS (EXTI)
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- PA4 - TRIG2 - 12V trigger (EXTI)
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- PA13 - TRIG0 - button0 (EXTI)
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- PA14 - TRIG1 - button1/laser/etc (EXTI)
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- PA15 - USB pullup
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- PB8, PB9 - onboard LEDs (0/1)
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- PC13 - buzzer
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## LEDS
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- LED0 - shining when there's no PPS signal, fades for 0.25s on PPS
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- LED1 - don't shines if no GPS found, shines when time not valid, blinks when time valid
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### Not implemented yet:
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- PA5,6,7 (SCK, MISO, MOSI) - SPI
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- PB0 - TRIG4 - ADC channel 8
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- PB6/7 (SCL, SDA) - I2C
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