156 lines
4.3 KiB
C
156 lines
4.3 KiB
C
/*
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* Peppercon9
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* GAT Addon Firmware
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* by true
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*
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* version 0.0.1
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*
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* code was made for different random addons I designed for dc32,
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* then adapted to each one. so things might be a mess.
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*
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* I had only a few hours on and off over a week to get the code done.
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* lots of shit was copied from demo code and adapted to work. certainly
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* isn't the best way to get this done.
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*
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* I know I could save some power, but seeing as all the badges burn it in
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* LEDs and almost nobody else power optimizes their badge code, who cares?
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*
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* sorry. wasn't procrastination I swear. all the ideas were last minute.
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*
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* notes:
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*
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* - last 2K of flash memory is reserved for configuration storage
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* - accelerometer code isn't done by DC32
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*/
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#include <ch32v20x.h>
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#include <stdint.h>
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#include "src/adc.h"
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#include "src/btn.h"
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#include "src/config.h"
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#include "src/i2c.h"
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#include "src/led.h"
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#include "src/lis2dw.h"
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#include "src/rand.h"
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#include "src/touch.h"
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#include "src/ui.h"
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void systick_init(void)
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{
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SysTick->CMP = (SystemCoreClock / 1024) - 1; // we want a 1024Hz interrupt
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SysTick->CNT = 0; // clear counter
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SysTick->CTLR = 0xF; // start counter in /1 mode, enable interrupts, auto-reset counter
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SysTick->SR = 0; // clear count comparison flag
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NVIC_EnableIRQ(SysTicK_IRQn); // enable interrupt
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}
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void gpio_init()
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{
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GPIO_InitTypeDef gpio = {0};
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gpio.GPIO_Speed = GPIO_Speed_2MHz;
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// unused osc pins
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gpio.GPIO_Mode = GPIO_Mode_IPD;
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gpio.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_7;
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GPIO_Init(GPIOD, &gpio);
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// unused PORTA pins (0=none, 1=none, 5=SWI2C_SCL, 9=none)
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gpio.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_5 | GPIO_Pin_9;
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GPIO_Init(GPIOA, &gpio);
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// unused PORTB pins (5=SWI2C_SDA)
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gpio.GPIO_Pin = GPIO_Pin_5;
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GPIO_Init(GPIOB, &gpio);
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// lightsense LED anode and cathode (2=anode, 3=cathode)
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gpio.GPIO_Mode = GPIO_Mode_Out_PP;
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gpio.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
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GPIO_Init(GPIOA, &gpio);
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// TBTN1 front touch button, right side (A4)
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gpio.GPIO_Mode = GPIO_Mode_AIN;
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gpio.GPIO_Pin = GPIO_Pin_4;
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GPIO_Init(GPIOA, &gpio);
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// TBTN2 front touch button, left side (A9)
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gpio.GPIO_Pin = GPIO_Pin_1;
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GPIO_Init(GPIOB, &gpio);
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// rear RGBLED (6=T3C1 blue, 7=T3C2 green)
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gpio.GPIO_Mode = GPIO_Mode_AF_PP;
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gpio.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
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GPIO_Init(GPIOA, &gpio);
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// rear RGBLED (1=T3C3 red)
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gpio.GPIO_Pin = GPIO_Pin_0;
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GPIO_Init(GPIOB, &gpio);
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// accelerometer interrupt
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gpio.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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gpio.GPIO_Pin = GPIO_Pin_15;
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GPIO_Init(GPIOA, &gpio);
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// I2C SCL, SCA for on-board devices
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gpio.GPIO_Mode = GPIO_Mode_AF_OD;
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gpio.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
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GPIO_Init(GPIOB, &gpio);
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}
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int main(void)
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{
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// configure core
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NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
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SystemCoreClockUpdate();
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// enable peripheral clocks
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RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIM3 | RCC_APB1Periph_I2C1 |
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RCC_APB1Periph_PWR, ENABLE);
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RCC_APB2PeriphClockCmd( RCC_APB2Periph_AFIO | RCC_APB2Periph_GPIOA |
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RCC_APB2Periph_GPIOB | RCC_APB2Periph_GPIOD |
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RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2, ENABLE);
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// configure gpio pins
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gpio_init();
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// get saved settings
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i2c_init();
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userconf_load();
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// configure hardware
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adc_init(); // configure ADC1 for lightsense, also configures ADC clock divider
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btn_init(); // configures ADC2 touch buttons on the front
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lis2dw_init(); // looking at badge: Y+ up, X+ right, Z+ in front of badge
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led_init(); // configure matrix IC as well as RGB PWM
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// by default, top LED is in light sense mode
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adc_set_mode_lsens(LSENS_READING_IDLE);
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// configure random
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tinymt32_init(&tinymt32_s, DBGMCU_GetCHIPID() | userconf.checksum);
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// configure UI
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ui_init();
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// configure systick interrupt
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systick_init();
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rgb[0] = 10;
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rgb[1] = 10;
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rgb[2] = 10;
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// do system shit
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while(1) {
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__WFI();
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// after sending LEDs, run our program
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// to update the LED buffer for next time
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if ((ticnt & 0x7) == 0) {
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ui_render();
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}
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}
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}
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