【GD32E231 DIY Contest】3. Light up a row of digital tubes

ddllxxrr

【GD32E231 DIY Contest】3. Light up a row of digital tubes [Copy link]

I feel a bit disadvantaged this time, because the digital tubes are one inch with common cathode, which are big and bulky. Each tube is connected to an 8050 transistor, and then connected to 8 wires. I said that when I usually make products, I have a digital tube control chip. But this time I didn't use it and had to bite the bullet. Today, I used timer 13 to distribute a 25HZ signal to each transistor, but it's not very good. I will slowly adjust it later. The following is the program of timer 13.

1. void Timer13_Init(void) { timer_parameter_struct timer_initpara; rcu_periph_clock_enable(RCU_TIMER13); timer_deinit(TIMER13); /* TIMER configuration */ timer_initpara.prescaler = 719; timer_initpara.alignedmode = TIMER_COUNTER_EDGE; timer_initpara.counterdirection = TIMER_COUNTER _UP; timer_initpara.period = 999; //10MS timer_initpara.clockdivision = TIMER_CKDIV_DIV1; timer_initpara.repetitioncounter = 0; timer_init(TIMER13,&timer_initpara); timer_interrupt_enable(TIMER13, TIMER_INT_UP); /*Enable TIMER2*/ nvic_irq_enable(TIMER13_IRQn, 0); //Set priority to 0(0-2) /* auto-reload preload enable */ timer_auto_reload_shadow_enable(TIMER13); /* auto-reload preload enable */ timer_enable(TIMER13); } /*The interrupt handler function of tmer2*/ void TIMER13_IRQHandler(void) { if(RESET != timer_interrupt_flag_get(TIMER13, TIMER_INT_FLAG_UP)) { display_count++; } timer_interrupt_flag_clear(TIMER13, TIMER_INT_FLAG_UP); }

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The following is a photo of the operation. Although it is a bit flashy, the function has achieved the goal. I will adjust it next time.

月下良缘

Thanks for sharing!

cxmin

What is the cardboard under the digital tube used for?

ddllxxrr

cxmin posted on 2019-5-13 12:59 What is the cardboard under the digital tube used for?

It is used to place the digital tube. There are wires at the back. My perforated board can't fit it at all.