新增 apptest 全字符显示自检 (0-9/A-F) (APP V1.00.39)

- display_set_raw(digits[5], type) + 裸码模式: 绕过温度解码直接渲染段位字符
- apptest: 循环 0-15, 四数字位同显一字符, DIG4 固定 C
- 仅 APP 改动, Boot 不动 (仍 V1.00.07)
- docs/开发日志.md: 新增 §67

docs/开发日志.md

@@ -1624,3 +1624,18 @@ APP2 链接的镜像发向 APP1 区。设备端 END 校验（向量表 Reset PC
   - `app_display.h` 头部注释同步为 "DIG4 = unit letter (F/C)"。
 - 版本：APP `V1.00.37` → `V1.00.38`（`APP_FW_VERSION_NUM` 0x00010025 →
   0x00010026）。Boot 不动（仍 V1.00.07）。
+
+## 67. 新增 `apptest`：全字符（0-9 / A-F）显示自检（2026-09-06，APP V1.00.39，仅 APP）
+
+- 需求：`apptest` 把数码管所有可显示字符（0-9、A-F）都呈现一遍，肉眼核对
+  每个段位字符。
+- 实现：
+  - `app_display.c/h` 新增 `display_set_raw(digits[5], type)` + 裸码模式
+    （`g_disp_raw`/`g_disp_raw_digits[]`）：直接把 5 个段位字符码交给扫描，
+    绕过温度解码；`display_set()` 会清掉裸码模式回到数值解码；`display_task`
+    按 `g_disp_raw` 分流（裸码直接拷入 `digits[]`，`dp_flag` 恒 1）；
+  - `cli_core.c` 新增 `CmdAppTest`：循环 c=0..15，四个数字位（百/十/个/小数）
+    全部显示同一字符（DIG4 固定写 `C`），0-9 打印数字、10-15 打印 A-F，每项
+    500ms；结束后恢复 auto 状态并回 0.0；命令表注册 `apptest`。
+- 版本：APP `V1.00.38` → `V1.00.39`（`APP_FW_VERSION_NUM` 0x00010026 →
+  0x00010027）。Boot 不动（仍 V1.00.07）。

mcm-ddc-ble/inc/app_display.h

@@ -38,6 +38,15 @@ extern "C" {
  */
 void display_set(float value, uint8_t type, uint8_t base);
 
+/**
+ * @brief  Show raw digit codes directly (bypasses the temperature decode).
+ *         Used by the display self-test to render every segment character.
+ * @param  digits 5 codes: 0..9, 0xA..0xF (A..F), CHAR_BLANK(0xFF),
+ *                CHAR_MINUS(0x10); index 3 is the DIG4 unit letter
+ * @param  type   DISP_TYPE_CELSIUS / DISP_TYPE_FAHRENHEIT (DIG6-A indicator)
+ */
+void display_set_raw(const uint8_t digits[5], uint8_t type);
+
 /**
  * @brief  Display driver FreeRTOS task: Charlieplexing scan loop, never returns.
  */

mcm-ddc-ble/inc/app_version.h

@@ -9,12 +9,12 @@
 #define __APP_VERSION_H__
 
 #ifndef APP_FW_VERSION
-#define APP_FW_VERSION      "V1.00.38"
+#define APP_FW_VERSION      "V1.00.39"
 #endif
 
 /* Numeric form used by the BLE info query / OTA records: 0x00MMmmpp */
 #ifndef APP_FW_VERSION_NUM
-#define APP_FW_VERSION_NUM  0x00010026u
+#define APP_FW_VERSION_NUM  0x00010027u
 #endif
 
 #endif /* __APP_VERSION_H__ */

mcm-ddc-ble/src/app_display.c

@@ -108,6 +108,10 @@ static volatile uint8_t g_disp_type  = DISP_TYPE_CELSIUS;
 static volatile uint8_t g_disp_base  = DISP_BASE_DECIMAL;
 /** Automatic scan enable: 1 = auto scan, 0 = manual pin control. */
 static volatile uint8_t g_disp_auto  = 1u;
+/** Raw-mode: 1 = show g_disp_raw_digits[] instead of decoding g_disp_value. */
+static volatile uint8_t g_disp_raw   = 0u;
+/** Raw digit codes written by display_set_raw(). */
+static volatile uint8_t g_disp_raw_digits[DISP_DIGITS];
 
 /* Private function prototypes -----------------------------------------------*/
 /* Private functions ----------------------------------------------------------*/
@@ -308,6 +312,22 @@ void display_set(float value, uint8_t type, uint8_t base)
     g_disp_value = value;
     g_disp_type  = type;
     g_disp_base  = base;
+    g_disp_raw   = 0u;   /* back to decoded-value mode */
+}
+
+/**
+ * @brief  Show raw digit codes directly (bypasses the temperature decode).
+ */
+void display_set_raw(const uint8_t digits[5], uint8_t type)
+{
+    uint8_t i;
+
+    for (i = 0; i < DISP_DIGITS; i++)
+    {
+        g_disp_raw_digits[i] = digits[i];
+    }
+    g_disp_type = type;
+    g_disp_raw  = 1u;
 }
 
 /**
@@ -384,11 +404,24 @@ void display_task(void *pvParameters)
         }
         last_auto = 1u;
 
-        value = g_disp_value;
         type = g_disp_type;
-        base  = g_disp_base;
 
+        if (g_disp_raw)
+        {
+            /* raw mode: copy the digit codes straight through */
+            uint8_t i;
+            for (i = 0; i < DISP_DIGITS; i++)
+            {
+                digits[i] = g_disp_raw_digits[i];
+            }
+            dp_flag = 1u;
+        }
+        else
+        {
+            value = g_disp_value;
+            base  = g_disp_base;
             display_decode(value, type, base, digits, &dp_flag);
+        }
 
         /* DIG1..DIG5 */
         for (d = 1u; d <= DISP_DIGITS; d++)

mcm-ddc-ble/src/cli_core.c

@@ -847,6 +847,49 @@ static void CmdDispTest(int argc, char* argv[])
     cli_write("display self-test done\r\n");
 }
 
+/**
+ * @brief  "apptest": render every displayable character (0-9, A-F) in all
+ *         four numeric positions so the full segment set can be verified
+ *         visually. DIG4 stays "C". Restores auto-scan + 0.0 when done.
+ */
+static void CmdAppTest(int argc, char* argv[])
+{
+    uint8_t  prev_auto = display_auto_get();
+    uint8_t  digits[5];   /* DIG1..DIG5 raw codes */
+    uint8_t  c;
+
+    (void)argc;
+    (void)argv;
+
+    display_auto_set(1u);
+
+    cli_write("apptest: 0-9, A-F (each repeated in every numeric position)\r\n");
+
+    for (c = 0u; c < 16u; c++)
+    {
+        digits[0] = c;   /* DIG1 = hundreds */
+        digits[1] = c;   /* DIG2 = tens */
+        digits[2] = c;   /* DIG3 = ones */
+        digits[3] = 0x0Cu;   /* DIG4 = "C" (unit letter, keep fixed) */
+        digits[4] = c;   /* DIG5 = tenths */
+        display_set_raw(digits, DISP_TYPE_CELSIUS);
+
+        if (c < 10u)
+        {
+            cli_printf("  %u\r\n", (unsigned)c);
+        }
+        else
+        {
+            cli_printf("  %c\r\n", (char)('A' + (c - 10u)));
+        }
+        vTaskDelay(pdMS_TO_TICKS(500));
+    }
+
+    display_set(0.0f, DISP_TYPE_CELSIUS, DISP_BASE_DECIMAL);
+    display_auto_set(prev_auto);
+    cli_write("apptest done\r\n");
+}
+
 /* Command table; add new commands here */
 static const CliCmd_t s_cmds[] = {
     {"help",     "help [cmd]: list commands / show one command's help", CmdHelp},
@@ -867,6 +910,7 @@ static const CliCmd_t s_cmds[] = {
     {"dispauto", "dispauto [on|off]: enable/disable auto display scan", CmdDispAuto},
     {"dispset",  "dispset <pin1-7|all> [0|1|z]: drive display pin(s)", CmdDispSet},
     {"disptest", "disptest: run display self-test (digits/multi/max/degF)", CmdDispTest},
+    {"apptest",  "apptest: show every displayable char (0-9, A-F)",     CmdAppTest},
     {"factory",  "factory: restore params to defaults and reboot",     CmdFactory},
     {"uartrst",  "uartrst: re-init USART1 (460800 8N1), flush rx queue", CmdUartRst},
     {"uartinfo", "uartinfo: show USART1 pins/baud/format",             CmdUartInfo},

tools/out/mothercup_ble_prod_ota.json

@@ -1,7 +1,7 @@
 {
   "file": "mothercup_ble_prod_ota.bin",
   "target_bank": 1,
-  "size": 59676,
+  "size": 60032,
-  "crc32": "0xFB89F8D4",
+  "crc32": "0x5393B90B",
-  "version": 65574
+  "version": 65575
 }

tools/out/mothercup_ble_prod_ota_app2.json

@@ -1,7 +1,7 @@
 {
   "file": "mothercup_ble_prod_ota_app2.bin",
   "target_bank": 2,
-  "size": 59976,
+  "size": 60332,
-  "crc32": "0x5B5BD6F2",
+  "crc32": "0x4CDEA62B",
-  "version": 65574
+  "version": 65575
 }