From 5ac3d5afa7215b590df1f60250bac61fa47bb7e2 Mon Sep 17 00:00:00 2001
From: yelvlab <wanghao19950516@gmail.com>
Date: Tue, 16 Sep 2025 16:26:14 +0800
Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0M999=E5=91=BD=E4=BB=A4?=
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---
 Inc/board_config.h         |  8 ++++++++
 Src/command.c              | 14 ++++++++++++++
 cmake/project_config.cmake |  4 ++--
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/Inc/board_config.h b/Inc/board_config.h
index 4089583..5888cc3 100644
--- a/Inc/board_config.h
+++ b/Inc/board_config.h
@@ -39,6 +39,14 @@ void usart1_irq_handler(void);
 
 /******************************************************************************/
 
+#define MCU_CODE          23u
+
+#define FW_VERSION_MAJOR  0
+#define FW_VERSION_MINOR  0
+#define FW_VERSION_PATCH  3
+
+/******************************************************************************/
+
 #define RCU_GPIO_I2C         RCU_GPIOF
 #define RCU_I2C              RCU_I2C0
 #define I2C_SCL_PORT         GPIOF
diff --git a/Src/command.c b/Src/command.c
index d78ca37..a859227 100644
--- a/Src/command.c
+++ b/Src/command.c
@@ -284,6 +284,20 @@ void handle_command(const uint8_t *frame, uint8_t len) {
             //     send_response(RESP_TYPE_OK, s_report_status_ok, sizeof(s_report_status_ok));
             //     return;
 
+            case 999u: //M999: 输出固件版本号（vMCU_CODE.FW_VERSION_MAJOR.FW_VERSION_MINOR.FW_VERSION_PATCH）
+                {
+                    char version_str[16];
+                    int n = snprintf(version_str, sizeof(version_str), "v%u.%u.%u.%u", 
+                                     MCU_CODE, FW_VERSION_MAJOR, FW_VERSION_MINOR, FW_VERSION_PATCH);
+                    if (n > 0 && n < sizeof(version_str)) {
+                        send_response(RESP_TYPE_OK, (uint8_t *)version_str, (uint8_t)n);
+                    } else {
+                        send_response(RESP_TYPE_DATA_ERR, s_report_status_err, sizeof(s_report_status_err));
+                    }
+                    // send_response(RESP_TYPE_OK, (uint8_t *)"v23.0.0.3", 9);
+                }
+
+
             default:
                 // 其它无参数命令在此扩展（示例：M100）处理逻辑该如何待定
                 // send_response(RESP_TYPE_OK, s_report_status_ok, sizeof(s_report_status_ok));
diff --git a/cmake/project_config.cmake b/cmake/project_config.cmake
index e2ca5e9..25e9410 100644
--- a/cmake/project_config.cmake
+++ b/cmake/project_config.cmake
@@ -1,8 +1,8 @@
 # Project basic info
 set(PROJECT_NAME "ultrasonic-analog")
-set(VERSION_MAJOR 1)
+set(VERSION_MAJOR 0)
 set(VERSION_MINOR 0)
-set(VERSION_PATCH 0)
+set(VERSION_PATCH 3)
 set(VERSION "V${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}")
 string(TIMESTAMP BUILD_DATE "%Y-%m-%d")