update

inc/i2c.h

@@ -28,7 +28,7 @@
 
 /******************************************************************************/
 
-#define I2C_TIME_OUT    (uint16_t)(10000)
+#define I2C_TIME_OUT    (uint16_t)(5000)
 #define I2C_OK          1
 #define I2C_FAIL        0
 #define I2C_END         1

inc/ldc1612.h

@@ -43,12 +43,13 @@
 
 /******************************************************************************/
 
-#define LDC1612_CONVERSION_TIME_CH0        0X0546  //0536
+#define LDC1612_CONVERSION_TIME_CH0        0x0546  //0536
-#define LDC1612_DRIVE_CURRENT              0X9000  //A000
+#define LDC1612_DRIVE_CURRENT              0x9000  //A000
-#define LDC1612_MUX_CONFIG                 0X020C  // no auto scan and filter bandwidth 3.3MHz
+#define LDC1612_MUX_CONFIG                 0x020C  // no auto scan and filter bandwidth 3.3MHz
-#define LDC1612_SENSOR_CONFIG              0X1601
+#define LDC1612_SENSOR_CONFIG              0x1601
 #define LDC1612_ERROR_CONFIG               0x0000
-#define LC_STABILIZE_TIME_CH0              0X001E //30
+#define LC_STABILIZE_TIME_CH0              0x001E //30
+#define LDC1612_RESET_DEV                  0x8000 //[15:0] 0b1000 0000 0000 0000
 
 /******************************************************************************/
 

inc/main.h

@@ -39,4 +39,6 @@ OF SUCH DAMAGE.
 
 void watchdog_init(void);
 
+void reset_mcu(void);
+
 #endif /* MAIN_H */

inc/rs485.h

@@ -13,6 +13,9 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>
+#include "i2c.h"
+#include "ldc1612.h"
+#include "tmp112.h"
 
 /******************************************************************************/
 

src/main.c

@@ -23,16 +23,24 @@ void watchdog_init(void) {
     rcu_osci_on(RCU_IRC40K);
     rcu_osci_stab_wait(RCU_IRC40K);
 
-    /* Enable the FWDGT clock */
+    /* Configure FWDGT counter clock: 40KHz(IRC40K) / 64 = 0.625 KHz */
-    // rcu_periph_clock_enable(RCU_FWDGT);
+    fwdgt_config(625, FWDGT_PSC_DIV64); // Set timeout to 1 seconds (625 / 0.625 KHz)
-
-    /* Configure FWDGT counter clock: 40KHz(IRC40K) / 256 = 0.15625 KHz */
-    fwdgt_config(625, FWDGT_PSC_DIV256); // Set timeout to 4 seconds (625 / 0.15625 KHz)
 
     /* Enable FWDGT */
     fwdgt_enable();
 }
 
+void reset_mcu(void) {
+    /* Enable the write access to the FWDGT_CTL register */
+    FWDGT_CTL = FWDGT_WRITEACCESS_ENABLE;
+
+    /* Configure FWDGT to trigger a system reset */
+    fwdgt_config(50, FWDGT_PSC_DIV4);
+
+    /* Reload the counter to trigger the reset */
+    fwdgt_counter_reload();
+}
+
 /*!
     \brief      main function
     \param[in]  none
@@ -60,11 +68,6 @@ int main(void) {
 
     while (1) {
         delay_ms(99);
-        g_eddy_current_value_uint32 = 0;
-        g_temperature_uint32 = 0;
-        g_eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0);
-        g_temperature_uint32 = tmp112a_get_raw_channel_result();
-        // printf("1");
         fwdgt_counter_reload();
     }
 }

src/rs485.c

@@ -53,8 +53,13 @@ void process_command(uint8_t *cmd, size_t length) {
             sprintf(combined_str, "%c%c", cmd[3], cmd[4]);
             if (strcmp(combined_str, "M1") == 0) {
                 eddy_current_value_report();
-            } else if (strcmp(combined_str, "M2") == 0) {
+            } else if (strcmp(combined_str, "M2") == 0)
+            {
                 tempture_value_report();
+            } else if (strcmp(combined_str, "M3") == 0)
+            {
+                printf("%c%c%c%c%c%c", 0xB5, 0xF1, 0x02, 0x6F, 0x6B, 0xCC);
+                reset_mcu();
             } else {
                 printf("%c%c%c%c%c%c%c", 0xB5, 0xF0, 0x03, 0x65, 0x72, 0x72, 0x3C);
                 return;
@@ -120,10 +125,14 @@ validation_result_t validate_data_length(uint8_t *data) {
 }
 
 void eddy_current_value_report(void) {
-    package_data[0] = (g_eddy_current_value_uint32 >> 24) & 0xFF;
+    static uint32_t eddy_current_value_uint32 = 0;
-    package_data[1] = (g_eddy_current_value_uint32 >> 16) & 0xFF;
+
-    package_data[2] = (g_eddy_current_value_uint32 >> 8) & 0xFF;
+    eddy_current_value_uint32 = ldc1612_get_raw_channel_result(CHANNEL_0);
-    package_data[3] = g_eddy_current_value_uint32 & 0xFF;
+
+    package_data[0] = (eddy_current_value_uint32 >> 24) & 0xFF;
+    package_data[1] = (eddy_current_value_uint32 >> 16) & 0xFF;
+    package_data[2] = (eddy_current_value_uint32 >> 8) & 0xFF;
+    package_data[3] = eddy_current_value_uint32 & 0xFF;
 
     uint8_t combined_data[7];
     memcpy(combined_data, package_header, 3);
@@ -135,10 +144,14 @@ void eddy_current_value_report(void) {
 }
 
 void tempture_value_report(void) {
-    package_data[0] = (g_temperature_uint32 >> 24) & 0xFF;
+    static uint32_t temperature_uint32 = 0;
-    package_data[1] = (g_temperature_uint32 >> 16) & 0xFF;
+
-    package_data[2] = (g_temperature_uint32 >> 8) & 0xFF;
+    temperature_uint32 = tmp112a_get_raw_channel_result();
-    package_data[3] = g_temperature_uint32 & 0xFF;
+
+    package_data[0] = (temperature_uint32 >> 24) & 0xFF;
+    package_data[1] = (temperature_uint32 >> 16) & 0xFF;
+    package_data[2] = (temperature_uint32 >> 8) & 0xFF;
+    package_data[3] = temperature_uint32 & 0xFF;
 
     uint8_t combined_data[7];
     memcpy(combined_data, package_header, 3);