Diff: dwm_uart.h

Revision:

0:bb732ce5e423

Child:

1:c13dab1b7b93

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwm_uart.h	Mon Mar 25 16:32:43 2019 +0000
@@ -0,0 +1,84 @@
+#ifndef _DWM_UART_H_
+#define _DWM_UART_H_
+#include "mbed.h"
+
+#define HAL_UART_MAX_LENGTH            255
+#define DWM_WRITE_TIMEOUT 600 //us
+#define DWM_READ_TIMEOUT 3 //ms
+
+/**
+ * @brief DWM Error codes, returned from DWM1001 module
+ */
+#define DWM_OK                 (0)
+#define DWM_ERR_INTERNAL    (-1)
+#define DWM_ERR_BUSY           (-2)
+#define DWM_ERR_INVAL_ADDR  (-3)
+#define DWM_ERR_INVAL_PARAM   (-4)
+#define DWM_ERR_OVERRUN     (-5)
+#define DWM_ERR_I2C_ANACK   (-10)
+#define DWM_ERR_I2C_DNACK   (-11)
+
+/**
+ * @brief Return value Error codes, returned from DWM API functions
+ */
+#define RV_OK 0      /*  ret value OK */
+#define RV_ERR -1
+#define RV_TIME -2      /*  ret value ERROR*/
+
+typedef struct {
+    int32_t x;
+    int32_t y;
+    int32_t z;
+    uint8_t qf;
+} dwm_pos;
+
+
+class dwm
+{
+public:
+    dwm(PinName tx_pin, PinName rx_pin, int baudrate);
+    dwm_pos node_pos;
+/*====================================================
+ *                      API
+ * ===================================================
+ */ 
+    
+/*
+ * @brief: la commande dans l'exemple du doc, pour tester
+ * @param: non
+ * @output: 0 - reussi
+ *          1 - echec
+ */
+    int dwm_gpio_cfg_output();
+/*
+ * @brief: recuperer la position x, y, z, qui seront stockes dans pos
+ * @param: la struc dwm_pos
+ * @output: 0 - reussi
+ *          1 - echec
+ */
+    int dwm_pos_get();
+//======================================
+//              PRIVATE
+//=====================================
+private:
+    Serial dwm_uart;
+    
+    //vider le buffer rx de nucleo
+    void  flushSerialBuffer();
+/*
+ * @brief:  envoyer la commande
+ * @param:  *tx_buffer - le tableau pour la commande
+            len - la longeur du commande
+ * @output: 0 - reussi
+ *          -1 - echec
+ */
+    int uart_write(uint8_t* tx_buffer, uint8_t len);
+/*
+ * @brief:  recevoir la commande
+ * @param:  *rx_buffer - la reponse est stocke dans rx_buffer
+ * @output: la longeur de la reponse
+ *          -1 - echec
+ */
+    int uart_read(uint8_t* rx_buffer, int len_prevu);
+};
+#endif //_DWM_UART_H_
\ No newline at end of file