From 8982ff186d00ddbd98541c3c9d454023d736a35d Mon Sep 17 00:00:00 2001
From: CXSforHPU <19511928573@163.com>
Date: Sun, 1 Feb 2026 00:24:15 +0800
Subject: [PATCH] Add an example for measuring the onboard peripherals of the
 I2C board

---
 bsp/gd32/risc-v/gd32vw553h-eval/board/Kconfig | 14 ++++
 .../risc-v/gd32vw553h-eval/board/SConscript   |  6 ++
 .../gd32vw553h-eval/board/port/SConscript     | 24 +++++++
 .../board/port/at24c02/at24c02_sample.c       | 69 +++++++++++++++++++
 4 files changed, 113 insertions(+)
 create mode 100644 bsp/gd32/risc-v/gd32vw553h-eval/board/port/SConscript
 create mode 100644 bsp/gd32/risc-v/gd32vw553h-eval/board/port/at24c02/at24c02_sample.c

diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/board/Kconfig b/bsp/gd32/risc-v/gd32vw553h-eval/board/Kconfig
index 6bb5df41373..cb608fad953 100644
--- a/bsp/gd32/risc-v/gd32vw553h-eval/board/Kconfig
+++ b/bsp/gd32/risc-v/gd32vw553h-eval/board/Kconfig
@@ -84,6 +84,20 @@ endmenu
 
 menu "Board extended module Drivers"
 
+    menuconfig BSP_USING_AT24C02
+        bool "Enable AT24C02 I2C0( SCL[PA2 : 2] SDA[PA3 : 3] )"
+        default n
+        select PKG_USING_AT24CXX
+        select PKG_AT24CXX_EE_TYPE_AT24C02
+
+        if BSP_USING_AT24C02
+            
+            config BSP_USING_AT24C02_FINISH_TEST
+                bool "Enable the test of AT24C02"    
+                default n
+
+        endif
+
 endmenu
 
 endmenu
diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/board/SConscript b/bsp/gd32/risc-v/gd32vw553h-eval/board/SConscript
index 71fadebe66f..e8721535066 100644
--- a/bsp/gd32/risc-v/gd32vw553h-eval/board/SConscript
+++ b/bsp/gd32/risc-v/gd32vw553h-eval/board/SConscript
@@ -24,4 +24,10 @@ if rtconfig.PLATFORM in ['gcc']:
 CPPDEFINES = ['GD32VW553H_EVAL']
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
 
+list = os.listdir(cwd)
+for item in list:
+    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
+        group = group + SConscript(os.path.join(item, 'SConscript'))
+
+
 Return('group')
diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/board/port/SConscript b/bsp/gd32/risc-v/gd32vw553h-eval/board/port/SConscript
new file mode 100644
index 00000000000..61cdfc37375
--- /dev/null
+++ b/bsp/gd32/risc-v/gd32vw553h-eval/board/port/SConscript
@@ -0,0 +1,24 @@
+import os
+from building import *
+
+objs = []
+cwd  = GetCurrentDir()
+
+# add general drivers
+src = []
+path =  [cwd]
+
+if GetDepend(['BSP_USING_AT24C02_FINISH_TEST']):
+    path += [cwd + "/at24c02"]
+    src +=  ["./at24c02/at24c02_sample.c"]
+
+
+CPPDEFINES = ['GD32VW553H_EVAL']
+group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
+
+list = os.listdir(cwd)
+for item in list:
+    if os.path.isfile(os.path.join(cwd, item, 'SConscript')):
+        group = group + SConscript(os.path.join(item, 'SConscript'))
+
+Return('group')
diff --git a/bsp/gd32/risc-v/gd32vw553h-eval/board/port/at24c02/at24c02_sample.c b/bsp/gd32/risc-v/gd32vw553h-eval/board/port/at24c02/at24c02_sample.c
new file mode 100644
index 00000000000..d0c3e95365b
--- /dev/null
+++ b/bsp/gd32/risc-v/gd32vw553h-eval/board/port/at24c02/at24c02_sample.c
@@ -0,0 +1,69 @@
+#include "rtconfig.h"
+
+#ifdef BSP_USING_AT24C02
+
+#include "at24cxx.h"
+#include <rtthread.h>
+
+#define AT24C02_I2C_NAME "i2c0"
+#define TEST_DATA  "WELCOM TO RTT"
+
+static at24cxx_device_t dev = RT_NULL;
+
+/**
+ * @brief AT24C02 EEPROM测试函数
+ * 
+ * @param argc 参数个数
+ * @param argv 参数数组
+ */
+void gd32_at24c02_test(int argc, char *argv[])
+{
+    rt_err_t result = RT_EOK;
+    uint8_t write_buffer[] = TEST_DATA;
+    uint8_t AddrInput = 0x0;
+    int data_size = sizeof(write_buffer);
+
+    uint8_t read_buffer[50] = {0};
+
+    /* 初始化设备 */
+    if (dev == RT_NULL)
+    {
+        dev = at24cxx_init(AT24C02_I2C_NAME, AddrInput);
+        if (dev == RT_NULL)
+        {
+            rt_kprintf("AT24C02 initialization failed\n");
+            return;
+        }
+        rt_kprintf("AT24C02 initialized successfully\n");
+    }
+
+    /* 写入数据 */
+    result = at24cxx_write(dev, 0, write_buffer, data_size);
+    if (result == RT_ERROR)
+    {
+        rt_kprintf("Failed to write data to AT24C02\n");
+        goto cleanup;
+    }
+    rt_kprintf("Successfully wrote to AT24C02: %s\n", write_buffer);
+
+    /* 读取数据 */
+    result = at24cxx_read(dev, 0, read_buffer, data_size);
+    if (result == RT_ERROR)
+    {
+        rt_kprintf("Failed to read data from AT24C02\n");
+        goto cleanup;
+    }
+    rt_kprintf("Successfully read from AT24C02: %s\n", read_buffer);
+
+
+cleanup:
+    /* 清理资源 */
+
+    at24cxx_deinit(dev);
+
+    return;
+}
+
+MSH_CMD_EXPORT(gd32_at24c02_test, GD32 AT24C02 EEPROM test function);
+
+#endif
\ No newline at end of file