Diff: global_buffers.h

Revision:

24:e8d03912f303

Parent:

23:f74a50977593

Child:

25:1a031add188a

--- a/global_buffers.h	Wed Jul 18 18:52:30 2018 +0000
+++ b/global_buffers.h	Wed Jul 18 21:25:17 2018 +0000
@@ -22,15 +22,73 @@
 #define __GLOBAL_BUFFERS_H__
 
 /***************************************************************************
- * Grid Eye Sensor Information
+ * Indexes for which byte specific data begins at in the payload buffer
  **************************************************************************/
+
+/* size of data in bytes that is acquired by the master device */
+const uint8_t size_of_ble  = 2;
+/* size of data in bytes that is acquired by the slave device */
+const uint8_t size_of_grid_eye  = 128; 
+const uint8_t size_of_gps       = 20;
+const uint8_t size_of_MAX17055  = 5;
+const uint8_t size_of_MAX77650  = 5;
+
+const uint16_t PAYLOAD_BUFFER_SIZE_MASTER_TO_SLAVE = size_of_ble;
+const uint16_t PAYLOAD_BUFFER_SIZE_SLAVE_TO_MASTER = size_of_grid_eye + size_of_gps + size_of_MAX17055 + size_of_MAX77650;
+
 #if   defined(TARGET_MAX32630FTHR) // Master Device: BLE-to-LoRa Gateway
-    char curr_raw_frame_data_from_slave[128];
-    char prev_raw_frame_data_from_slave[128];
-    int16_t conv_frame_data_from_slave[64];
+    /* These are indexs used to create the payload buffer to send to Slave */  
+    const uint8_t tx_idx_ble = 0;                                       // 1st buf in tx payload (begins at byte 0)
+    
+    /* These are indexs used to deconstruct received payload buffer sent by the Slave */   
+    const uint8_t rx_idx_grid_eye = 0;                                  // 1st buf in rx payload (begins at byte 0)
+    const uint8_t rx_idx_gps      = rx_idx_grid_eye + size_of_grid_eye; // 2nd buf in rx payload
+    const uint8_t rx_idx_MAX17055 = rx_idx_gps      + size_of_gps;      // 3rd buf in rx payload
+    const uint8_t rx_idx_MAX77650 = rx_idx_MAX17055 + size_of_MAX17055; // 4th buf in rx payload
+        
 #elif defined(TARGET_MAX32620FTHR) // Client Device: LoRa Controlled Robot
-    char     curr_raw_frame_data_to_master[128];
+    
+    /* These are indexs used to create the payload buffer to send to Master */
+    const uint8_t tx_idx_grid_eye = 0;                                  // 1st buf in tx payload (begins at byte 0)
+    const uint8_t tx_idx_gps      = tx_idx_grid_eye + size_of_grid_eye; // 2nd buf in tx payload
+    const uint8_t tx_idx_MAX17055 = tx_idx_gps      + size_of_gps;      // 3rd buf in tx payload
+    const uint8_t tx_idx_MAX77650 = tx_idx_MAX17055 + size_of_MAX17055; // 4th buf in tx payload
+    
+    /* These are indexs used to deconstruct received payload buffer sent by the Master */
+    const uint8_t rx_idx_ble = 0;                                       // 1st buf in rx payload (begins at byte 0)
 #endif
 
 
+/***************************************************************************
+ * Grid Eye Sensor Data Buffers
+ **************************************************************************/
+#if   defined(TARGET_MAX32630FTHR) // Master Device: BLE-to-LoRa Gateway
+    static char curr_raw_frame_data_from_slave[payload_grid_eye_size];
+    static char prev_raw_frame_data_from_slave[payload_grid_eye_size];
+    static int16_t conv_frame_data_from_slave[64];
+#elif defined(TARGET_MAX32620FTHR) // Client Device: LoRa Controlled Robot
+    static char curr_raw_frame_data_to_master[128];
+#endif
+
+/***************************************************************************
+ * BLE Data Buffers
+ **************************************************************************/
+#if   defined(TARGET_MAX32630FTHR) // Master Device: BLE-to-LoRa Gateway
+    static char curr_ble_data_to_slave[2];
+#elif defined(TARGET_MAX32620FTHR) // Slave Device: LoRa Controlled Robot
+    static char curr_ble_data_from_master[2];
+    static char prev_ble_data_from_master[2];
+#endif
+
+
+/** 
+ * @brief This function constructs a payload buffer that is used in transmitting data in a LoRa Message
+ */
+int fillPayloadWithGlobalBufs(); 
+
+/** 
+ * @brief This function deconstructs a payload buffer that contains data from a received LoRa Message
+ */
+int fillGlobalBufsWithPayload(); 
+
 #endif // __GLOBAL_BUFFERS_H__
\ No newline at end of file