{
  "title": "Tai-IoT 开发板示例交叉编译记录 / development board cross-compilation records",
  "toolkit_version": "0.2.0",
  "environment": {
    "os": "Linux (Debian 13)",
    "python": "3.13",
    "mcp_sdk": "2.3.0"
  },
  "scope": "Scripted MCP client (no model), real cross-compilation with the pinned vendor SDKs and local Git diff. No board was flashed and no serial port was read.",
  "paths": "<workspace> is a temporary board project; ~ is the home directory of the test computer.",
  "boards": [
    {
      "recorded_at": "2026-10-31T07:33+08:00",
      "request": "把 Espressif ESP32-S3-DevKitC-1 (N16R8) 的温度采样间隔从 1 秒改成 500 毫秒，报警阈值改成 28℃，交叉编译固件，展示 Git 改动。",
      "board": "esp32s3-devkitc-1",
      "driver": "scripted MCP client; no LLM used",
      "workspace": "<workspace>",
      "steps": [
        {
          "tool": "get_board_profile",
          "arguments": {},
          "is_error": false,
          "result": {
            "name": "taiiot-temperature",
            "board": "esp32s3-devkitc-1",
            "target": "esp32s3",
            "sample_period_ms": 1000,
            "alarm_threshold_c": 60.0,
            "board_title": "Espressif ESP32-S3-DevKitC-1 (N16R8)",
            "workspace": "<workspace>",
            "files": [
              "project.json",
              "CMakeLists.txt",
              "sdkconfig.defaults",
              "cmake/taiiot_config.cmake",
              "main/CMakeLists.txt",
              "main/app_main.c"
            ],
            "sdk": {
              "sdk": "ESP-IDF",
              "path": "~/esp/esp-idf-v6.1",
              "required_version": "v6.1",
              "installed_version": "v6.1",
              "ready": true
            },
            "build": "not_built",
            "usb_serial_devices": [],
            "serial_note": "Devices with an interface name match this board's serial console. A match does not prove this board is attached. Ports marked not accessible need serial permission (the dialout group on Linux).",
            "designated_port": null,
            "flash_enabled": false,
            "git_repository": true
          }
        },
        {
          "tool": "read_project_file",
          "arguments": {
            "path": "main/app_main.c"
          },
          "is_error": false,
          "result": {
            "path": "main/app_main.c",
            "content": "#include <inttypes.h>\n#include <math.h>\n#include <stdbool.h>\n#include <stdint.h>\n#include <stdio.h>\n#include \"driver/temperature_sensor.h\"\n#include \"esp_err.h\"\n#include \"esp_timer.h\"\n#include \"freertos/FreeRTOS.h\"\n#include \"freertos/task.h\"\n#include \"sdkconfig.h\"\n\n/* SAMPLE_PERIOD_MS and ALARM_THRESHOLD_DECI_C come from project.json via main/CMakeLists.txt.\n * The chip's built-in sensor measures die temperature, not ambient temperature. */\n\nstatic bool alarm_active(int temperature_deci_c)\n{\n    return temperature_deci_c >= ALARM_THRESHOLD_DECI_C;\n}\n\nvoid app_main(void)\n{\n    temperature_sensor_handle_t sensor = NULL;\n    temperature_sensor_config_t sensor_config = TEMPERATURE_SENSOR_CONFIG_DEFAULT(-10, 80);\n    ESP_ERROR_CHECK(temperature_sensor_install(&sensor_config, &sensor));\n    ESP_ERROR_CHECK(temperature_sensor_enable(sensor));\n\n    /* One JSON object per line, so a host can check the flashed settings and sample timing. */\n    printf(\"{\\\"event\\\":\\\"start\\\",\\\"board\\\":\\\"%s\\\",\\\"target\\\":\\\"%s\\\",\\\"sample_period_ms\\\":%u,\"\n           \"\\\"alarm_threshold_deci_c\\\":%d}\\n\",\n           TAIIOT_BOARD, CONFIG_IDF_TARGET, (unsigned)SAMPLE_PERIOD_MS, ALARM_THRESHOLD_DECI_C);\n\n    const int64_t start_us = esp_timer_get_time();\n    TickType_t wake = xTaskGetTickCount();\n    for (uint32_t index = 0;; ++index) {\n        float celsius = 0.0f;\n        esp_err_t error = temperature_sensor_get_celsius(sensor, &celsius);\n        int64_t time_ms = (esp_timer_get_time() - start_us) / 1000;\n        if (error == ESP_OK) {\n            int deci_c = (int)lroundf(celsius * 10.0f);\n            printf(\"{\\\"index\\\":%\" PRIu32 \",\\\"time_ms\\\":%\" PRId64 \",\\\"temperature_deci_c\\\":%d,\"\n                   \"\\\"alarm\\\":%s}\\n\",\n                   index, time_ms, deci_c, alarm_active(deci_c) ? \"true\" : \"false\");\n        } else {\n            printf(\"{\\\"index\\\":%\" PRIu32 \",\\\"time_ms\\\":%\" PRId64 \",\\\"error\\\":\\\"%s\\\"}\\n\",\n                   index, time_ms, esp_err_to_name(error));\n        }\n        xTaskDelayUntil(&wake, pdMS_TO_TICKS(SAMPLE_PERIOD_MS));\n    }\n}\n"
          }
        },
        {
          "tool": "set_sampling",
          "arguments": {
            "period_ms": 500,
            "alarm_c": 28.0
          },
          "is_error": false,
          "result": {
            "status": "updated",
            "before": {
              "name": "taiiot-temperature",
              "board": "esp32s3-devkitc-1",
              "target": "esp32s3",
              "sample_period_ms": 1000,
              "alarm_threshold_c": 60.0
            },
            "after": {
              "name": "taiiot-temperature",
              "board": "esp32s3-devkitc-1",
              "target": "esp32s3",
              "sample_period_ms": 500,
              "alarm_threshold_c": 28.0
            },
            "requires_rebuild": true
          }
        },
        {
          "tool": "build_firmware",
          "arguments": {},
          "is_error": false,
          "result": {
            "status": "passed",
            "fingerprint": "d5e799ec0fa9f33300a34dc94c96497f4e2671957809dd35fc354af714044fac",
            "board": "esp32s3-devkitc-1",
            "target": "esp32s3",
            "sdk": "esp-idf",
            "sdk_version": "v6.1",
            "firmware": "<workspace>/build/taiiot_temperature.bin",
            "sha256": "14d13c57e005047577d49d758c7ac5e0680a5c7e6f0f0519667f7b210ccdfe34",
            "compiled_settings": {
              "ALARM_THRESHOLD_DECI_C": "280",
              "SAMPLE_PERIOD_MS": "500U"
            },
            "compiler": "~/.espressif/tools/xtensa-esp-elf/esp-15.2.0_20251204/xtensa-esp-elf/bin/xtensa-esp32s3-elf-gcc",
            "compiler_version": "xtensa-esp-elf-gcc (crosstool-NG esp-15.2.0_20251204) 15.2.0",
            "flash_files": "<workspace>/build/flash_args",
            "binary_size": 156448,
            "app_partition_size": 1048576,
            "app_partition_free_percent": 85,
            "output_tail": [
              "Project build complete. To flash, run:",
              " idf.py flash",
              "or",
              " idf.py -p PORT flash",
              "or",
              " python -m esptool --chip esp32s3 -b 460800 --before default-reset --after hard-reset write-flash --flash-mode dio --flash-size 16MB --flash-freq 80m 0x0 build/bootloader/bootloader.bin 0x8000 build/partition_table/partition-table.bin 0x10000 build/taiiot_temperature.bin",
              "or from the \"<workspace>/build\" directory",
              " python -m esptool --chip esp32s3 -b 460800 --before default-reset --after hard-reset write-flash \"@flash_args\""
            ],
            "duration_s": 139.7,
            "log": "<workspace>/build/taiiot-build.log",
            "flashed": false,
            "hardware_tested": false
          }
        },
        {
          "tool": "get_git_diff",
          "arguments": {},
          "is_error": false,
          "result": {
            "status": "passed",
            "git_status": " M project.json\n",
            "diff": "diff --git a/project.json b/project.json\nindex 79c3602..80279f7 100644\n--- a/project.json\n+++ b/project.json\n@@ -2,6 +2,6 @@\n   \"name\": \"taiiot-temperature\",\n   \"board\": \"esp32s3-devkitc-1\",\n   \"target\": \"esp32s3\",\n-  \"sample_period_ms\": 1000,\n-  \"alarm_threshold_c\": 60.0\n+  \"sample_period_ms\": 500,\n+  \"alarm_threshold_c\": 28.0\n }\n",
            "stderr": "",
            "remote_access": false
          }
        }
      ],
      "protocol_version": "2026-07-28",
      "tools": [
        "get_board_profile",
        "read_project_file",
        "set_sampling",
        "build_firmware",
        "flash_firmware",
        "read_serial_log",
        "get_git_diff"
      ]
    },
    {
      "recorded_at": "2026-10-31T07:30+08:00",
      "request": "把 ST NUCLEO-H723ZG 的温度采样间隔从 1 秒改成 500 毫秒，报警阈值改成 28℃，交叉编译固件，展示 Git 改动。",
      "board": "nucleo-h723zg",
      "driver": "scripted MCP client; no LLM used",
      "workspace": "<workspace>",
      "steps": [
        {
          "tool": "get_board_profile",
          "arguments": {},
          "is_error": false,
          "result": {
            "name": "taiiot-temperature",
            "board": "nucleo-h723zg",
            "target": "stm32h723zg",
            "sample_period_ms": 1000,
            "alarm_threshold_c": 60.0,
            "board_title": "ST NUCLEO-H723ZG",
            "workspace": "<workspace>",
            "files": [
              "project.json",
              "CMakeLists.txt",
              "cmake/taiiot_config.cmake",
              "cmake/arm-none-eabi.cmake",
              "src/main.c",
              "src/interrupts.c",
              "include/stm32h7xx_nucleo_conf.h"
            ],
            "sdk": {
              "sdk": "stm32cubeh7",
              "path": "~/sdk/st-stm32cubeh7-v1.13.0",
              "required_version": "v1.13.0",
              "missing_files": [],
              "arm_gnu_toolchain": "~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-gcc",
              "arm_gnu_toolchain_found": true,
              "ready": true
            },
            "build": "not_built",
            "usb_serial_devices": [],
            "serial_note": "Devices with an interface name match this board's serial console. A match does not prove this board is attached. Ports marked not accessible need serial permission (the dialout group on Linux).",
            "designated_port": null,
            "flash_enabled": false,
            "git_repository": true
          }
        },
        {
          "tool": "read_project_file",
          "arguments": {
            "path": "src/main.c"
          },
          "is_error": false,
          "result": {
            "path": "src/main.c",
            "content": "#include <inttypes.h>\n#include <stdbool.h>\n#include <stdint.h>\n#include <stdio.h>\n#include \"stm32h7xx_hal.h\"\n#include \"stm32h7xx_nucleo.h\"\n\n/* SAMPLE_PERIOD_MS, ALARM_THRESHOLD_DECI_C and TAIIOT_BOARD come from project.json via CMake.\n * MPU, clock and DTS settings use the values of ST's DTS_GetTemperature example for\n * NUCLEO-H723ZG (STM32CubeH7 v1.13.0). The digital temperature sensor measures the die\n * temperature in whole degrees; output goes to the ST-LINK virtual COM port (USART3). */\n\nstatic DTS_HandleTypeDef dts;\n\nstatic void fail(void)\n{\n    BSP_LED_On(LED3);\n    for (;;) {\n    }\n}\n\nstatic void mpu_config(void)\n{\n    /* Deny speculative access to the unused address space, as ST's examples do. */\n    MPU_Region_InitTypeDef region = {0};\n    HAL_MPU_Disable();\n    region.Enable = MPU_REGION_ENABLE;\n    region.BaseAddress = 0x00;\n    region.Size = MPU_REGION_SIZE_4GB;\n    region.AccessPermission = MPU_REGION_NO_ACCESS;\n    region.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;\n    region.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;\n    region.IsShareable = MPU_ACCESS_SHAREABLE;\n    region.Number = MPU_REGION_NUMBER0;\n    region.TypeExtField = MPU_TEX_LEVEL0;\n    region.SubRegionDisable = 0x87;\n    region.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;\n    HAL_MPU_ConfigRegion(&region);\n    HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);\n}\n\nstatic void clock_config(void)\n{\n    /* 520 MHz from the 8 MHz clock the ST-LINK supplies (HSE bypass); buses at 260 MHz. */\n    RCC_OscInitTypeDef oscillator = {0};\n    RCC_ClkInitTypeDef clocks = {0};\n    __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);\n    while (!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {\n    }\n    oscillator.OscillatorType = RCC_OSCILLATORTYPE_HSE;\n    oscillator.HSEState = RCC_HSE_BYPASS;\n    oscillator.HSIState = RCC_HSI_OFF;\n    oscillator.CSIState = RCC_CSI_OFF;\n    oscillator.PLL.PLLState = RCC_PLL_ON;\n    oscillator.PLL.PLLSource = RCC_PLLSOURCE_HSE;\n    oscillator.PLL.PLLM = 4;\n    oscillator.PLL.PLLN = 260;\n    oscillator.PLL.PLLFRACN = 0;\n    oscillator.PLL.PLLP = 1;\n    oscillator.PLL.PLLR = 2;\n    oscillator.PLL.PLLQ = 4;\n    oscillator.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;\n    oscillator.PLL.PLLRGE = RCC_PLL1VCIRANGE_1;\n    if (HAL_RCC_OscConfig(&oscillator) != HAL_OK) {\n        fail();\n    }\n    clocks.ClockType = RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_D1PCLK1 |\n                       RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2 | RCC_CLOCKTYPE_D3PCLK1;\n    clocks.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;\n    clocks.SYSCLKDivider = RCC_SYSCLK_DIV1;\n    clocks.AHBCLKDivider = RCC_HCLK_DIV2;\n    clocks.APB3CLKDivider = RCC_APB3_DIV2;\n    clocks.APB1CLKDivider = RCC_APB1_DIV2;\n    clocks.APB2CLKDivider = RCC_APB2_DIV2;\n    clocks.APB4CLKDivider = RCC_APB4_DIV2;\n    if (HAL_RCC_ClockConfig(&clocks, FLASH_LATENCY_3) != HAL_OK) {\n        fail();\n    }\n}\n\nvoid HAL_DTS_MspInit(DTS_HandleTypeDef *handle)\n{\n    (void)handle;\n    __HAL_RCC_DTS_CLK_ENABLE();\n}\n\nstatic bool alarm_active(int temperature_deci_c)\n{\n    return temperature_deci_c >= ALARM_THRESHOLD_DECI_C;\n}\n\nint main(void)\n{\n    mpu_config();\n    HAL_Init();\n    clock_config();\n    BSP_LED_Init(LED3);\n\n    COM_InitTypeDef console = {\n        .BaudRate = 115200,\n        .WordLength = COM_WORDLENGTH_8B,\n        .StopBits = COM_STOPBITS_1,\n        .Parity = COM_PARITY_NONE,\n        .HwFlowCtl = COM_HWCONTROL_NONE,\n    };\n    if (BSP_COM_Init(COM1, &console) != BSP_ERROR_NONE) {\n        fail();\n    }\n    setvbuf(stdout, NULL, _IONBF, 0);\n\n    dts.Instance = DTS;\n    dts.Init.QuickMeasure = DTS_QUICKMEAS_DISABLE;\n    dts.Init.SamplingTime = DTS_SMP_TIME_15_CYCLE;\n    dts.Init.RefClock = DTS_REFCLKSEL_PCLK;\n    if (HAL_DTS_Init(&dts) != HAL_OK || HAL_DTS_Start(&dts) != HAL_OK) {\n        fail();\n    }\n\n    /* One JSON object per line, so a host can check the flashed settings and sample timing. */\n    printf(\"{\\\"event\\\":\\\"start\\\",\\\"board\\\":\\\"%s\\\",\\\"target\\\":\\\"stm32h723zg\\\",\\\"sample_period_ms\\\":%u,\"\n           \"\\\"alarm_threshold_deci_c\\\":%d}\\n\",\n           TAIIOT_BOARD, (unsigned)SAMPLE_PERIOD_MS, ALARM_THRESHOLD_DECI_C);\n\n    const uint32_t start = HAL_GetTick();\n    uint32_t due = start;\n    for (uint32_t index = 0;; ++index) {\n        int32_t celsius = 0;\n        uint32_t time_ms = HAL_GetTick() - start;\n        if (HAL_DTS_GetTemperature(&dts, &celsius) == HAL_OK) {\n            int deci_c = (int)celsius * 10;\n            printf(\"{\\\"index\\\":%\" PRIu32 \",\\\"time_ms\\\":%\" PRIu32 \",\\\"temperature_deci_c\\\":%d,\\\"alarm\\\":%s}\\n\",\n                   index, time_ms, deci_c, alarm_active(deci_c) ? \"true\" : \"false\");\n        } else {\n            printf(\"{\\\"index\\\":%\" PRIu32 \",\\\"time_ms\\\":%\" PRIu32 \",\\\"error\\\":\\\"dts_read\\\"}\\n\", index, time_ms);\n        }\n        /* Unsigned subtraction keeps the schedule correct when the tick counter wraps. */\n        due += SAMPLE_PERIOD_MS;\n        while ((int32_t)(HAL_GetTick() - due) < 0) {\n        }\n    }\n}\n"
          }
        },
        {
          "tool": "set_sampling",
          "arguments": {
            "period_ms": 500,
            "alarm_c": 28.0
          },
          "is_error": false,
          "result": {
            "status": "updated",
            "before": {
              "name": "taiiot-temperature",
              "board": "nucleo-h723zg",
              "target": "stm32h723zg",
              "sample_period_ms": 1000,
              "alarm_threshold_c": 60.0
            },
            "after": {
              "name": "taiiot-temperature",
              "board": "nucleo-h723zg",
              "target": "stm32h723zg",
              "sample_period_ms": 500,
              "alarm_threshold_c": 28.0
            },
            "requires_rebuild": true
          }
        },
        {
          "tool": "build_firmware",
          "arguments": {},
          "is_error": false,
          "result": {
            "status": "passed",
            "fingerprint": "a09be4562848727a2f49c92e07d0db19a484d2fa22077d1ea05fcdd3e7d2728c",
            "board": "nucleo-h723zg",
            "target": "stm32h723zg",
            "sdk": "stm32cubeh7",
            "sdk_version": "v1.13.0",
            "firmware": "<workspace>/build/taiiot_temperature.elf",
            "sha256": "30c91fcb7161f780681040da1592f1ef72147f48727d423dc2aba7a2cf245b1f",
            "compiled_settings": {
              "ALARM_THRESHOLD_DECI_C": "280",
              "SAMPLE_PERIOD_MS": "500U"
            },
            "compiler": "~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-gcc",
            "compiler_version": "arm-none-eabi-gcc (Arm GNU Toolchain 15.2.Rel1 (Build arm-15.86)) 15.2.1 20251203",
            "binary_size": 13892,
            "memory": {
              "ITCMRAM": {
                "used": 0,
                "size": 65536,
                "percent": 0.0
              },
              "RAM": {
                "used": 2208,
                "size": 131072,
                "percent": 1.68
              },
              "ROM": {
                "used": 13892,
                "size": 1048576,
                "percent": 1.32
              }
            },
            "output_tail": [
              "[95/98] Building C object CMakeFiles/taiiot_temperature.elf.dir/src/main.c.obj",
              "[96/98] Building C object CMakeFiles/taiiot_temperature.elf.dir/src/interrupts.c.obj",
              "[97/98] Building C object CMakeFiles/vendor.dir~/sdk/st-stm32cubeh7-v1.13.0/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_uart.c.obj",
              "[98/98] Linking C executable taiiot_temperature.elf",
              "Memory region         Used Size  Region Size  %age Used",
              "         ITCMRAM:           0 B        64 KB      0.00%",
              "             RAM:        2208 B       128 KB      1.68%",
              "             ROM:       13892 B         1 MB      1.32%"
            ],
            "duration_s": 22.0,
            "log": "<workspace>/build/taiiot-build.log",
            "flashed": false,
            "hardware_tested": false
          }
        },
        {
          "tool": "get_git_diff",
          "arguments": {},
          "is_error": false,
          "result": {
            "status": "passed",
            "git_status": " M project.json\n",
            "diff": "diff --git a/project.json b/project.json\nindex 77c9440..54f448c 100644\n--- a/project.json\n+++ b/project.json\n@@ -2,6 +2,6 @@\n   \"name\": \"taiiot-temperature\",\n   \"board\": \"nucleo-h723zg\",\n   \"target\": \"stm32h723zg\",\n-  \"sample_period_ms\": 1000,\n-  \"alarm_threshold_c\": 60.0\n+  \"sample_period_ms\": 500,\n+  \"alarm_threshold_c\": 28.0\n }\n",
            "stderr": "",
            "remote_access": false
          }
        }
      ],
      "protocol_version": "2026-07-28",
      "tools": [
        "get_board_profile",
        "read_project_file",
        "set_sampling",
        "build_firmware",
        "flash_firmware",
        "read_serial_log",
        "get_git_diff"
      ]
    },
    {
      "recorded_at": "2026-10-31T07:30+08:00",
      "request": "把 Artery AT-START-F413 的温度采样间隔从 1 秒改成 500 毫秒，报警阈值改成 28℃，交叉编译固件，展示 Git 改动。",
      "board": "at-start-f413",
      "driver": "scripted MCP client; no LLM used",
      "workspace": "<workspace>",
      "steps": [
        {
          "tool": "get_board_profile",
          "arguments": {},
          "is_error": false,
          "result": {
            "name": "taiiot-temperature",
            "board": "at-start-f413",
            "target": "at32f413rct7",
            "sample_period_ms": 1000,
            "alarm_threshold_c": 60.0,
            "board_title": "Artery AT-START-F413",
            "workspace": "<workspace>",
            "files": [
              "project.json",
              "CMakeLists.txt",
              "cmake/taiiot_config.cmake",
              "cmake/arm-none-eabi.cmake",
              "src/main.c"
            ],
            "sdk": {
              "sdk": "at32f413-library",
              "path": "~/sdk/artery-at32f413-v2.1.7",
              "required_version": "v2.1.7",
              "missing_files": [],
              "arm_gnu_toolchain": "~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-gcc",
              "arm_gnu_toolchain_found": true,
              "ready": true
            },
            "build": "not_built",
            "usb_serial_devices": [],
            "serial_note": "Devices with an interface name match this board's serial console. A match does not prove this board is attached. Ports marked not accessible need serial permission (the dialout group on Linux).",
            "designated_port": null,
            "flash_enabled": false,
            "git_repository": true
          }
        },
        {
          "tool": "read_project_file",
          "arguments": {
            "path": "src/main.c"
          },
          "is_error": false,
          "result": {
            "path": "src/main.c",
            "content": "#include <inttypes.h>\n#include <stdbool.h>\n#include <stdint.h>\n#include <stdio.h>\n#include \"at32f413_board.h\"\n#include \"at32f413_clock.h\"\n\n/* SAMPLE_PERIOD_MS, ALARM_THRESHOLD_DECI_C and TAIIOT_BOARD come from project.json via CMake.\n * The ADC, DMA and sensor coefficients use the values of Artery's internal_temperature_sensor\n * example for AT-START-F413 (AT32F413 library v2.1.7): ADC1 channel 16, 1.28 V at 25 C and\n * -4.20 mV/C with a 3.3 V reference. These are typical values, not per-chip calibration.\n * Output goes to the AT-Link virtual COM port (USART1). */\n\n#define ADC_REFERENCE_UV 3300000\n#define SENSOR_25C_UV 1280000\n#define SENSOR_SLOPE_UV_PER_C 4200\n\nstatic volatile uint16_t adc_value;\nstatic volatile uint32_t ticks_ms;\n\nvoid SysTick_Handler(void)\n{\n    ++ticks_ms;\n}\n\nstatic void dma_config(void)\n{\n    dma_init_type init;\n    crm_periph_clock_enable(CRM_DMA1_PERIPH_CLOCK, TRUE);\n    dma_reset(DMA1_CHANNEL1);\n    dma_default_para_init(&init);\n    init.buffer_size = 1;\n    init.direction = DMA_DIR_PERIPHERAL_TO_MEMORY;\n    init.memory_base_addr = (uint32_t)&adc_value;\n    init.memory_data_width = DMA_MEMORY_DATA_WIDTH_HALFWORD;\n    init.memory_inc_enable = FALSE;\n    init.peripheral_base_addr = (uint32_t)&(ADC1->odt);\n    init.peripheral_data_width = DMA_PERIPHERAL_DATA_WIDTH_HALFWORD;\n    init.peripheral_inc_enable = FALSE;\n    init.priority = DMA_PRIORITY_HIGH;\n    init.loop_mode_enable = TRUE;\n    dma_init(DMA1_CHANNEL1, &init);\n}\n\nstatic void adc_config(void)\n{\n    adc_base_config_type base;\n    crm_periph_clock_enable(CRM_ADC1_PERIPH_CLOCK, TRUE);\n    adc_reset(ADC1);\n    crm_adc_clock_div_set(CRM_ADC_DIV_6);\n    adc_base_default_para_init(&base);\n    adc_combine_mode_select(ADC_INDEPENDENT_MODE);\n    base.sequence_mode = FALSE;\n    base.repeat_mode = FALSE;\n    base.data_align = ADC_RIGHT_ALIGNMENT;\n    base.ordinary_channel_length = 1;\n    adc_base_config(ADC1, &base);\n    adc_ordinary_channel_set(ADC1, ADC_CHANNEL_16, 1, ADC_SAMPLETIME_239_5);\n    adc_ordinary_conversion_trigger_set(ADC1, ADC12_ORDINARY_TRIG_SOFTWARE, TRUE);\n    adc_dma_mode_enable(ADC1, TRUE);\n    adc_tempersensor_vintrv_enable(TRUE);\n    adc_enable(ADC1, TRUE);\n    adc_calibration_init(ADC1);\n    while (adc_calibration_init_status_get(ADC1)) {\n    }\n    adc_calibration_start(ADC1);\n    while (adc_calibration_status_get(ADC1)) {\n    }\n}\n\nstatic int read_temperature_deci_c(void)\n{\n    adc_ordinary_software_trigger_enable(ADC1, TRUE);\n    while (dma_flag_get(DMA1_FDT1_FLAG) == RESET) {\n    }\n    dma_flag_clear(DMA1_FDT1_FLAG);\n    /* Integer form of (1.28 V - Vsense) / 4.2 mV + 25 C, in tenths of a degree. */\n    int32_t sense_uv = (int32_t)((uint32_t)adc_value * ADC_REFERENCE_UV / 4095U);\n    int32_t deci_c = 250 + (SENSOR_25C_UV - sense_uv) * 10 / SENSOR_SLOPE_UV_PER_C;\n    return (int)deci_c;\n}\n\nstatic bool alarm_active(int temperature_deci_c)\n{\n    return temperature_deci_c >= ALARM_THRESHOLD_DECI_C;\n}\n\nint main(void)\n{\n    nvic_priority_group_config(NVIC_PRIORITY_GROUP_4);\n    system_clock_config();\n    at32_board_init();\n    uart_print_init(115200);\n    setvbuf(stdout, NULL, _IONBF, 0);\n    dma_config();\n    adc_config();\n    /* Enable DMA after ADC activation, as in Artery's example. */\n    dma_channel_enable(DMA1_CHANNEL1, TRUE);\n    /* A 1 ms tick replaces the board's polled delay functions, which this program does not use. */\n    SysTick_Config(system_core_clock / 1000U);\n\n    /* One JSON object per line, so a host can check the flashed settings and sample timing. */\n    printf(\"{\\\"event\\\":\\\"start\\\",\\\"board\\\":\\\"%s\\\",\\\"target\\\":\\\"at32f413rct7\\\",\\\"sample_period_ms\\\":%u,\"\n           \"\\\"alarm_threshold_deci_c\\\":%d}\\n\",\n           TAIIOT_BOARD, (unsigned)SAMPLE_PERIOD_MS, ALARM_THRESHOLD_DECI_C);\n\n    const uint32_t start = ticks_ms;\n    uint32_t due = start;\n    for (uint32_t index = 0;; ++index) {\n        uint32_t time_ms = ticks_ms - start;\n        int deci_c = read_temperature_deci_c();\n        printf(\"{\\\"index\\\":%\" PRIu32 \",\\\"time_ms\\\":%\" PRIu32 \",\\\"temperature_deci_c\\\":%d,\\\"alarm\\\":%s}\\n\",\n               index, time_ms, deci_c, alarm_active(deci_c) ? \"true\" : \"false\");\n        if (alarm_active(deci_c)) {\n            at32_led_on(LED2);\n        } else {\n            at32_led_off(LED2);\n        }\n        /* Unsigned subtraction keeps the schedule correct when the tick counter wraps. */\n        due += SAMPLE_PERIOD_MS;\n        while ((int32_t)(ticks_ms - due) < 0) {\n        }\n    }\n}\n"
          }
        },
        {
          "tool": "set_sampling",
          "arguments": {
            "period_ms": 500,
            "alarm_c": 28.0
          },
          "is_error": false,
          "result": {
            "status": "updated",
            "before": {
              "name": "taiiot-temperature",
              "board": "at-start-f413",
              "target": "at32f413rct7",
              "sample_period_ms": 1000,
              "alarm_threshold_c": 60.0
            },
            "after": {
              "name": "taiiot-temperature",
              "board": "at-start-f413",
              "target": "at32f413rct7",
              "sample_period_ms": 500,
              "alarm_threshold_c": 28.0
            },
            "requires_rebuild": true
          }
        },
        {
          "tool": "build_firmware",
          "arguments": {},
          "is_error": false,
          "result": {
            "status": "passed",
            "fingerprint": "7573d16a4a21650f93bf3206b3ead9300837afda276fc156d853e181ff9a84e0",
            "board": "at-start-f413",
            "target": "at32f413rct7",
            "sdk": "at32f413-library",
            "sdk_version": "v2.1.7",
            "firmware": "<workspace>/build/taiiot_temperature.elf",
            "sha256": "de35ddca1e191f58a762de70a5c9b91ddb72acf3369501d337bbe67dbc383aab",
            "compiled_settings": {
              "ALARM_THRESHOLD_DECI_C": "280",
              "SAMPLE_PERIOD_MS": "500U"
            },
            "compiler": "~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/arm-none-eabi-gcc",
            "compiler_version": "arm-none-eabi-gcc (Arm GNU Toolchain 15.2.Rel1 (Build arm-15.86)) 15.2.1 20251203",
            "binary_size": 8516,
            "memory": {
              "FLASH": {
                "used": 8516,
                "size": 262144,
                "percent": 3.25
              },
              "RAM": {
                "used": 2048,
                "size": 32768,
                "percent": 6.25
              },
              "SPIM": {
                "used": 0,
                "size": 16777216,
                "percent": 0.0
              }
            },
            "output_tail": [
              "~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/../lib/gcc/arm-none-eabi/15.2.1/../../../../arm-none-eabi/bin/ld: ~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/../lib/gcc/arm-none-eabi/15.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m+fp/hard/libc_nano.a(libc_a-readr.o): in function `_read_r':",
              "readr.c:(.text._read_r+0x10): warning: _read is not implemented and will always fail",
              "~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/../lib/gcc/arm-none-eabi/15.2.1/../../../../arm-none-eabi/bin/ld: ~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/../lib/gcc/arm-none-eabi/15.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m+fp/hard/libc_nano.a(libc_a-readr.o): note: the message above does not take linker garbage collection into account",
              "~/tools/arm-gnu-toolchain-15.2.rel1-x86_64-arm-none-eabi/bin/../lib/gcc/arm-none-eabi/15.2.1/../../../../arm-none-eabi/bin/ld: warning: taiiot_temperature.elf has a LOAD segment with RWX permissions",
              "Memory region         Used Size  Region Size  %age Used",
              "           FLASH:        8516 B       256 KB      3.25%",
              "             RAM:          2 KB        32 KB      6.25%",
              "            SPIM:           0 B        16 MB      0.00%"
            ],
            "duration_s": 5.0,
            "log": "<workspace>/build/taiiot-build.log",
            "flashed": false,
            "hardware_tested": false
          }
        },
        {
          "tool": "get_git_diff",
          "arguments": {},
          "is_error": false,
          "result": {
            "status": "passed",
            "git_status": " M project.json\n",
            "diff": "diff --git a/project.json b/project.json\nindex c948727..13ef0aa 100644\n--- a/project.json\n+++ b/project.json\n@@ -2,6 +2,6 @@\n   \"name\": \"taiiot-temperature\",\n   \"board\": \"at-start-f413\",\n   \"target\": \"at32f413rct7\",\n-  \"sample_period_ms\": 1000,\n-  \"alarm_threshold_c\": 60.0\n+  \"sample_period_ms\": 500,\n+  \"alarm_threshold_c\": 28.0\n }\n",
            "stderr": "",
            "remote_access": false
          }
        }
      ],
      "protocol_version": "2026-07-28",
      "tools": [
        "get_board_profile",
        "read_project_file",
        "set_sampling",
        "build_firmware",
        "flash_firmware",
        "read_serial_log",
        "get_git_diff"
      ]
    }
  ]
}
