Add DMA ring buffer file for UART, Improve calculation of PT1000 resistance

stm-firmware/include/adc-meas.h

@@ -12,30 +12,32 @@
 /**
  * @brief ADC channel number of PT1000 sensor input
  */
-#define ADC_PT1000_CHANNEL 2
+#define ADC_PT1000_CHANNEL 2U
 
 #define ADC_PT1000_PORT GPIOA
 #define ADC_PT1000_PORT_RCC_MASK RCC_AHB1ENR_GPIOAEN
 
-#define ADC_PT1000_PIN 2
+#define ADC_PT1000_PIN 2U
 
-#define ADC_FILTER_STARTUP_CYCLES 800
+#define ADC_FILTER_STARTUP_CYCLES 800U
 
-#define ADC_PT1000_SAMPLE_CNT_DELAY 2000
+#define ADC_PT1000_SAMPLE_CNT_DELAY 1000U
+
+#define ADC_PT1000_DMA_AVG_SAMPLES 6U
 
 /**
  * @brief Lower value for valid input range for PT1000 measurement
  *
  * If the input of the PT1000 sensor is below this value, an error is thrown. This is used to disable the temperature control loop
  */
-#define ADC_PT1000_LOWER_WATCHDOG 100
+#define ADC_PT1000_LOWER_WATCHDOG 200U
 
 /**
  * @brief Upper value for valid input range for PT1000 measurement
  *
  * If the input of the PT1000 sensor is above this value, an error is thrown. This is used to disable the temperature control loop
  */
-#define ADC_PT1000_UPPER_WATCHDOG 4000
+#define ADC_PT1000_UPPER_WATCHDOG 4000U
 
 enum adc_pt1000_error {ADC_PT1000_NO_ERR= 0, ADC_PT1000_WATCHDOG_ERROR=(1UL<<0), ADC_PT1000_OVERFLOW=(1UL<<1)};
 

stm-firmware/include/uart/dma-ring-buffer.h

@@ -0,0 +1,4 @@
+#ifndef __DMA_RING_BUFFER_H__
+#define __DMA_RING_BUFFER_H__
+
+#endif /* __DMA_RING_BUFFER_H__ */