Note 16 BLE.md 2.6 KB
tags: [entity] type: entity topic: stm32-lower note: 16 created: 2026-07-16
updated: 2026-07-16
Note 16: BLE (lower/stm32/12)
Projects
| # | Directory | Description |
|---|---|---|
| 12 | 12_ble_server_hal |
BLE Server (ESP32-C3) |
Code Accuracy Audit
Path Audit
| Claimed Path | Actual Path | Status |
|---|---|---|
stm32/12_ble_server_hal/Core/Src/main.c |
12_ble_server_hal/Core/Src/main.c |
✅ Correct |
stm32/12_ble_server_hal/App/BLE/ble.h |
12_ble_server_hal/App/BLE/ble.h |
✅ Correct |
stm32/12_ble_server_hal/App/BLE/ble.c |
12_ble_server_hal/App/BLE/ble.c |
✅ Correct |
BLE Init Sequence (ble.c)
Note claims exact AT command sequence:
| AT Command | Actual Code Line | Match? |
|---|---|---|
AT+BLEINIT=2\r\n |
Line 18 | ✅ Match |
AT+BLEGATTSSRVCRE\r\n |
Line 23 | ✅ Match |
AT+BLEGATTSSRVSTART\r\n |
Line 28 | ✅ Match |
AT+BLEADDR?\r\n |
Line 33 | ✅ Match |
AT+BLEADVPARAM=50,50,0,0,7,0\r\n |
Line 38 | ✅ Match |
AT+BLEADVDATAEX=\"atguigu-ble\",\"A123\",\"0102030405\",1\r\n |
Line 43 | ✅ Match |
AT+BLEADVSTART\r\n |
Line 48 | ✅ Match |
AT+BLESPPCFG=1,1,7,1,5\r\n |
Line 53 | ✅ Match |
AT+SYSMSG=4\r\n |
Line 58 | ✅ Match |
BLE Data Functions
| Claimed by Note | Actual Code | Match? |
|---|---|---|
BLE_SendData: HAL_UART_Transmit(&huart2, txBuff, txLen, 1000) |
Line 66 | ✅ Match |
BLE_ReadData: HAL_UARTEx_ReceiveToIdle(&huart2, rxBuff, 1024, rxLen, 1000) |
Line 76 | ✅ Match |
If *rxLen == 0 return immediately |
Lines 79-82 | ✅ Match |
Call BLE_IsConnChanged(rxBuff); if true, set *rxLen = 0 |
Lines 85-88 | ✅ Match |
Connection Detection (BLE_IsConnChanged)
| Claimed by Note | Actual Code | Match? |
|---|---|---|
strstr((char *)msg, "+BLECONN:") != NULL → send AT+BLESPP\r\n |
Lines 94-98 | ✅ Match |
strstr((char *)msg, "+BLEDISCONN:") != NULL → send +++ and delay 2000ms |
Lines 104-109, 112 | ✅ Match |
strstr(... "WIFI CONNECTED" ...) → return 1 |
Line 118 | ✅ Match |
strstr(... "WIFI GOT IP" ...) → return 1 |
Line 119 | ✅ Match |
strstr(... "+DIST_STA_IP:" ...) → return 1 |
Line 120 | ✅ Match |
BLE main.c
Note does not detail main.c, but actual code shows:
BLE_Init()called once- Infinite loop:
BLE_ReadData(), if data received,BLE_SendData()to echo back - Standard echo server pattern
Summary
Overall Accuracy: Excellent (99%+)
Issues Found: None significant. All AT commands, data functions, and connection detection logic match the actual source code perfectly. This is the most accurate note among the 8 reviewed.