hpw422初始版本

2026-06-04 09:13:55 +08:00
commit 982da04a92
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+/*!
+ * \file      i2c_software.c
+ *
+ * \brief     Target i2c software implementation
+ *
+ * \copyright Revised BSD License, see section \ref LICENSE.
+ *
+ * \code
+ *
+ *            _  __ _       ________    _
+ *           | |/ /(_)___  / ____/ /_  (_)___
+ *           |   // / __ \/ /   / __ \/ / __ \
+ *          /   |/ / / / / /___/ / / / / /_/ /
+ *         /_/|_/_/_/ /_/\____/_/ /_/_/ .___/
+ *                                   /_/
+ *           (C) 2022-2025 XinChip
+ *
+ * \endcode
+ *
+ * \author     ( XinChip ) Alex-J
+ *
+ * \author     ( XinChip )
+ */
+
+/*-----------------------------------------------------------------------------------
+                                       INCLUDE HEADE FILES
+ ------------------------------------------------------------------------------------*/
+#include "i2c_software.h"
+#include "xc_drv_sw_i2c.h"
+
+/*------------------------------------------------------------------------------------
+                                            Macros
+ -------------------------------------------------------------------------------------*/
+
+/*------------------------------------------------------------------------------------
+                                         Global Variables
+ -------------------------------------------------------------------------------------*/
+
+/*------------------------------------------------------------------------------------
+                                            Functions
+ -------------------------------------------------------------------------------------*/
+/**
+ * @brief       i2c_software_demo
+ * @details
+ * @param       void
+ * @retval      void
+ */
+void i2c_software_demo(void)
+{
+    uint8_t txbuff[512] = {"XINCHIP AT24C08 IIC TEST 20190507 . . . . . . . ."};
+    uint8_t rxbuff[sizeof(txbuff)];
+    i2c_software_init();
+
+    for (int i = 0; i < sizeof(txbuff) / 2; i++) {
+        txbuff[i] = i;
+    }
+
+    for (int i = sizeof(txbuff) / 2; i < sizeof(txbuff); i++) {
+        txbuff[i] = sizeof(txbuff) - i - 1;
+    }
+    DEBUG("at24cxx_write\n");
+    for (int i = 0; i < sizeof(txbuff); i++) {
+        DEBUG("[%d-%d] ", i, txbuff[i]);
+    }
+
+    at24cxx_write_nbytes(0, (uint8_t *)txbuff, sizeof(txbuff));
+
+    DEBUG("at24cxx_read\n");
+    at24cxx_read_nbytes(0, rxbuff, sizeof(txbuff));
+
+    for (int i = 0; i < sizeof(rxbuff); i++) {
+        DEBUG("[%d-%d] ", i, rxbuff[i]);
+        if (rxbuff[i] != txbuff[i]) {
+            DEBUG("i2c test error\n");
+            break;
+        }
+        if (i == sizeof(rxbuff) - 1) {
+            DEBUG("i2c test ok\n");
+        }
+    }
+}