修复若干bug&完善fatfs服务&完善app

mkrtos_user/server/app/util/temp_cal.c

@@ -0,0 +1,81 @@
+
+#include "adc.h"
+#include "temp_cal.h"
+#include "sysinfo.h"
+#include <math.h>
+
+// Rt = R *EXP(B*(1/T1-1/T2))
+// 这里T1和T2指的是K度即开尔文温度，K度=273.15(绝对温度)+摄氏度；其中T2=(273.15+25)
+// Rt 是热敏电阻在T1温度下的阻值；
+// R是热敏电阻在T2常温下的标称阻值；
+// B值是热敏电阻的重要参数；
+// EXP是e的n次方；
+
+const float Rp = 10000.0;         // 10K
+const float T2 = (273.15 + 25.0); // T2
+const float Bx = 3950.0;          // B
+const float Ka = 273.15;
+
+// 根据电阻值计算温度值
+float get_temp(int resistor)
+{
+    float Rt;
+    float temp;
+
+    Rt = resistor;
+    // like this R=5000, T2=273.15+25,B=3470, RT=5000*EXP(3470*(1/T1-1/(273.15+25)),
+    temp = Rt / Rp;
+    temp = log(temp); // ln(Rt/Rp)
+    temp /= Bx;       // ln(Rt/Rp)/B
+    temp += (1 / T2);
+    temp = 1 / (temp);
+    temp -= Ka;
+    return temp;
+}
+
+#define RES_CAL(a) ((double)((a)) / (((3.3 - a) / 10000.0)))
+
+#define TEMPS_NUMBET 4 // 六路温度
+
+#define TEP_CAP_COUNT 50 // 15次平均
+
+u32 adc_cap_val[TEMPS_NUMBET] = {0};
+u16 adc_count = 0;
+void temps_cal(void)
+{
+    u8 i;
+    for (i = 0; i < TEMPS_NUMBET; i++)
+    {
+        adc_cap_val[i] += ADCConvertedValue[i];
+    }
+    adc_count++;
+    if (adc_count >= TEP_CAP_COUNT)
+    {
+        adc_count = 0;
+        for (i = 0; i < TEMPS_NUMBET; i++)
+        {
+            adc_cap_val[i] /= TEP_CAP_COUNT;
+        }
+        sys_info.temp[0] = get_temp(RES_CAL(((double)adc_cap_val[0] / 4096.) * 3.3));
+        sys_info.temp[1] = get_temp(RES_CAL(((double)adc_cap_val[1] / 4096.) * 3.3));
+        sys_info.temp[2] = get_temp(RES_CAL(((double)adc_cap_val[2] / 4096.) * 3.3));
+        sys_info.temp[3] = get_temp(RES_CAL(((double)adc_cap_val[3] / 4096.) * 3.3));
+        sys_info.temp[4] = get_temp(RES_CAL(((double)adc_cap_val[4] / 4096.) * 3.3));
+        sys_info.temp[5] = get_temp(RES_CAL(((double)adc_cap_val[5] / 4096.) * 3.3));
+        for (i = 0; i < TEMPS_NUMBET; i++)
+        {
+            if (sys_info.temp[i] < TEMP_MIN_VAL)
+            {
+                sys_info.temp[i] = TEMP_MIN_VAL;
+            }
+            else if (sys_info.temp[i] > TEMP_MAX_VAL)
+            {
+                sys_info.temp[i] = TEMP_MAX_VAL;
+            }
+        }
+        for (i = 0; i < TEMPS_NUMBET; i++)
+        {
+            adc_cap_val[i] = 0;
+        }
+    }
+}