Steins7
3c7a09479c
+ added function libraries to keep main.c clean + moved temprature calculus to fixed-point * fixed ADC driver messed up during dma_dev branch creation
94 lines
2.0 KiB
C
94 lines
2.0 KiB
C
// standard headers
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#include <stdint.h>
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// driver includes
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#include "drivers/rcc.h"
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#include "drivers/io.h"
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#include "drivers/lcd.h"
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#include "drivers/adc.h"
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Clock_t sysclks;
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#include "drivers/timer.h"
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// project headers
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#include "ui.h"
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//------------------------------------------------------------------------------
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/* static variables */
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int val = 0;
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uint16_t data = 0;
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int16_t voltage = 0;
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int16_t temp = 0;
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//------------------------------------------------------------------------------
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/* Timer IRQ */
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static void timeout_cb(void) {
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io_write(GPIOC, val, PIN_13);
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val = !val;
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}
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//------------------------------------------------------------------------------
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/* main function */
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int main(void) {
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rcc_config_clock(CLOCK_CONFIG_PERFORMANCE, &sysclks);
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// configure GPIO for LED
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if(io_configure(GPIOC, PIN_13, IO_MODE_OUTPUT | IO_OUT_PUSH_PULL, 0))
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return 0;
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io_write(GPIOC, 1, PIN_13);
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// configure GPIOS for temperature sensors
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if(io_configure(GPIOA, PIN_0 | PIN_1 | PIN_2 | PIN_3 | PIN_4 | PIN_5,
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IO_MODE_INPUT | IO_IN_ANALOG, 0)) return 0;
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if(adc_init(ADC1)) return 0;
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// configure lcd
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lcd_init(TIM1, 16, 2);
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lcd_send_cmd(LCD_CUR_HOME);
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lcd_print("SILO:1 Te: 18""\xDF""C");
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lcd_set_cursor(0,1);
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lcd_print("1: 25""\xDF""C 2: 26""\xDF""C");
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lcd_send_cmd(LCD_DISP_CTRL | LCD_CTRL_DISP_ON | LCD_CTRL_CUR_OFF |
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LCD_CTRL_BLINK_OFF);
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// start timed interruption
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timer_tick_init(TIM2, 1000, timeout_cb);
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timer_start(TIM2);
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// main loop
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while(1){
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// update T1
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data = adc_read(ADC1, 0);
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data -= adc_read(ADC1, 1);
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voltage = ((data*4) << 8)/4095;
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temp = ((voltage - 0x73) << 8)/0x9;
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update_temp(T1, temp);
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// update T2
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data = adc_read(ADC1, 2);
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data -= adc_read(ADC1, 3);
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voltage = ((data*4) << 8)/4095;
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temp = ((voltage - 0x73) << 8)/0x9;
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update_temp(T2, temp);
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// update T_ext
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data = adc_read(ADC1, 4);
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data -= adc_read(ADC1, 5);
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voltage = ((data*4) << 8)/4095;
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temp = ((voltage - 0x73) << 8)/0x9;
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update_temp(T_EXT, temp);
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// update every 0.2 seconds
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timer_wait_ms(TIM1, 200, 0);
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}
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return 0;
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}
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