一 概述

TM7711 是應用于電子秤低頻測量的單通道模擬前端。該器件可以接受直接來自傳感器的低電平的輸入信號，然后產(chǎn)生串行的數(shù)字輸出。利用 Σ-Δ 轉(zhuǎn)換技術(shù)實現(xiàn)了 24 位無丟失代碼性能。通過選定的輸入信號被送到一個基于模擬調(diào)制器的增益可編程專用前端。片內(nèi)數(shù)字濾波器處理調(diào)制器的輸出信號，通過通信口發(fā)命令可調(diào)節(jié)濾波器的截止點和輸出更新速率，從而對數(shù)字濾波器的第一個陷波進行編程。TM7711 只需 2.6~5.5V 單電源供電。TM7711 是全差分模擬輸入，帶有一個基準輸入。TM7711 是一款用于高精度電子秤系統(tǒng)的理想產(chǎn)品，由于采用特殊的結(jié)構(gòu)確保器件具有極低功耗，并且內(nèi)建有掉電模式以減少待機功耗。該芯片還具有集成度高、響應速度快、抗干擾強等優(yōu)點，可以大大降低電子秤系統(tǒng)的整機成本，提高整機系統(tǒng)的性能和可靠性。

二 功能特點

1對全差分輸入通道的 ADC

片內(nèi)直接溫度測量和數(shù)字輸出

24 位無丟失代碼

片內(nèi)低噪聲放大器，增益為 128

±0.001%非線性

可選 10Hz 和 40Hz 的輸出數(shù)據(jù)速率

同步抑制 50Hz 和 60Hz 的電源干擾

內(nèi)置時鐘振蕩器無需任何外接器件

簡單的二線串行通信口

工作電壓范圍：2.6 ~ 5.5V

工作溫度范圍：-40 ~ +85℃

封裝形式:SOP8 /DIP8 /TSSOP8

三 典型應用

四 管腳信息

五 串口通信

串口通訊線由管腳 PD_SCK 和 DOUT 組成，用來輸出數(shù)據(jù)，選擇輸出數(shù)據(jù)速率和輸入信號。當數(shù)據(jù)輸出管腳 DOUT 為高電平時，表明 A/D 轉(zhuǎn)換器還未準備好輸出數(shù)據(jù)，此時串口時鐘輸入信號 PD_SCK 應為低電平。當 DOUT 從高電平變低電平后，PD_SCK 應輸入 25 至 27 個不等的時鐘脈沖（圖 3）。其中第一個時鐘脈沖的上升沿將讀出輸出 24 位數(shù)據(jù)的最高位（MSB），直至第 24 個時鐘脈沖完成，24 位輸出數(shù)據(jù)從最高位至最低位逐位輸出完成。第 25 至 27 個時鐘脈沖用來選擇下一次 A/D 轉(zhuǎn)換的輸出數(shù)據(jù)速率和輸入信號，參見表 4。PD_SCK 的輸入時鐘脈沖數(shù)不應少于 25 或多于27，否則會造成串口通訊錯誤。當 A/D 轉(zhuǎn)換器的輸入信號或輸出數(shù)據(jù)速率改變時，A/D 轉(zhuǎn)換器需要 4 個數(shù)據(jù)輸出周期才能穩(wěn)定。DOUT 在 4 個數(shù)據(jù)輸出周期后才會從高電平變低電平，輸出有效數(shù)據(jù)。

六 組件的使用

1 Gitee鏈接地址

Demo位于amaziot_bloom_os_sdksample3rd3.1_SSD1315

Gitee源碼地址：https://gitee.com/ning./hongdou

Github源碼地址：https://github.com/ayumid/hongdou

編譯指令：.build.bat -l .amaziot_bloom_os_sdksample3rd3.1_SSD1315

2 組件功能介紹

驅(qū)動稱重芯片，獲取當前重量對應的ADC值。

根據(jù)二元一次方程（y為砝碼重量，x為adc值）y = ax + b可以計算出a，b的值。之后可以根據(jù)a，b，adc的值來計算y值。

3 代碼講解

1 drv_tm7711_get_weight_value

功能：該函數(shù)用于，獲取重量。

參數(shù)：

參數(shù)	釋義
k	二元一次方程，在坐標系中斜線的斜率
b	二元一次返程，在坐標系中和Y軸交點到原點的距離

返回值：無

示例：

//顯示圖片，注意參數(shù)和實際點陣大小一致 drv_ssd1315_show_picture(0,12,132,37,BMP1,1);

2 drv_ssd1315_scroll_display

功能：該函數(shù)用于，滾動顯示漢字。

參數(shù)：

參數(shù)	釋義
num	顯示漢字的個數(shù)
space	每一遍顯示的間隔
mode	0,反色顯示;1,正常顯示

返回值：無

示例：

drv_tm7711_get_weight_value(0.26483, 0.69879);

3 drv_tm7711_get_val

功能：該函數(shù)用于，獲取tm7711采樣值。

參數(shù)：

參數(shù)	釋義
uc_next	選擇下一次A/D 轉(zhuǎn)換的輸出數(shù)據(jù)速率和輸入信號
data	獲取的傳感器數(shù)據(jù)

返回值：無

示例：

temp = drv_tm7711_read_data(uc_next);

4 drv_tm7711_read_data

功能：該函數(shù)用于，顯示數(shù)字。

參數(shù)：

參數(shù)	釋義
uc_next	選擇下一次A/D 轉(zhuǎn)換的輸出數(shù)據(jù)速率和輸入信號 25 差分信號 10Hz 26 溫度測量 40Hz 27 差分信號 40Hz

返回值：無

示例：

5 drv_tm7711_dout_pin_init

功能：該函數(shù)用于，模擬i2c，初始化SDA引腳為輸入。

參數(shù)：無

返回值：無

示例：

drv_tm7711_dout_pin_init();

6 drv_tm7711_pdsck_pin_init

功能：該函數(shù)用于，模擬i2c，初始化SCL引腳為輸出。

參數(shù)：

返回值：無

示例：

drv_tm7711_pdsck_pin_init();

4 Demo實戰(zhàn)

4.1 創(chuàng)建一個Demo

復制20.1_file_xtu示例工程，到同一個文件夾下，修改文件名為4.0_TM7711，如圖：

4.2 修改makefile

增加文件組件所在目錄頭文件路徑，和源文件路徑，如圖：

4.3 增加頭文件

使用代碼編輯器，將新建的工程文件加入代碼編輯器中，打開main.c，修改main.c，加入am.h等頭文件，如圖：

4.4 修改代碼

在Phase2Inits_exit 創(chuàng)建一個任務(wù)，如圖：

4.5 宏定義介紹

sample_sc7a20_uart_printf

輸出日志到DEBUG 串口，日志比較少，可以輸出到這個串口，如果日志比較多，需要輸出到usb口，以免不必要的問題出現(xiàn)

sample_sc7a20_catstudio_printf

輸出日志到USB 串口，使用catstudio查看，catstudio查看日志需要更新對應版本mdb.txt文件，軟件打開filtter過濾日志，只查看用戶輸出的日志

SAMPLE_SC7A20_STACK_SIZE

?？臻g宏定義

4.6 全局變量介紹

sample_sc7a20_int_detect_stack_ptr

任務(wù)?？臻g，本例使用數(shù)組實現(xiàn)，用戶在做項目時，可以預先估算下當先任務(wù)需要的大致?？臻g，OS沒有提供可以查看?？臻g使用情況的API

sample_sc7a20_int_detect_task_ref

任務(wù)指針

4.7 函數(shù)介紹

Phase1Inits_enter

底層初始化，本例空

Phase1Inits_exit

底層初始化，本例空

Phase2Inits_enter

底層初始化，本例空

Phase2Inits_exit

創(chuàng)建主任務(wù)，初始化消息隊列，定時器，任務(wù)等。

代碼片段：

void Phase2Inits_exit(void) { int ret = 0; // GPIOConfiguration config = {0}; //創(chuàng)建定時器 // OSATimerCreate(&sample_sc7a20_int_detect_timer_ref); //創(chuàng)建中斷事件 // OSAFlagCreate( &sample_sc7a20_int_detect_flg_ref); // Os_Create_HISR(&sample_sc7a20_int_detect_hisr, "sample_sc7a20_int_detect_hisr", sample_sc7a20_detect_handler, 2); //創(chuàng)建中斷處理任務(wù) OSATaskCreate(&sample_sc7a20_int_detect_task_ref, sample_sc7a20_int_detect_stack_ptr, SAMPLE_SC7A20_STACK_SIZE, 100, "detect_task", sample_sc7a20_detect_task, NULL); //初始化int引腳，這里使用70腳 gpio126 // config.pinDir = GPIO_IN_PIN; // config.pinEd = GPIO_TWO_EDGE; // config.pinPull = GPIO_PULLUP_ENABLE; // config.isr = sample_sc7a20_irq_handler; // GpioInitConfiguration(SAMPLE_GPIO_ISR_PIN_NUM, config); }

sample_sc7a20_detect_task

主任務(wù)，獲取稱重信息，需要手動根據(jù)砝碼計算出k和b的值，然后才可以調(diào)用drv_tm7711_get_weight_value，計算出實際重量，每一個傳感器所在pcb狀態(tài)可能不一致，所以每一臺設(shè)備，k和b的值都需要校準。

代碼片段：

void sample_sc7a20_detect_task(void *param) { INT32 data = 0; int ret = 0; drv_tm7711_dout_pin_init(); drv_tm7711_pdsck_pin_init(); while(1) { ret = drv_tm7711_get_val(DRV_TM7711_CH1_10HZ, &data); // drv_tm7711_get_weight_value(0.15485, 0.416548615); sample_sc7a20_catstudio_printf("[APP] tm7711 data: 0x%x", data); sample_sc7a20_sleep(1); } }

4.8 編譯

在SDK根目錄打開命令行，輸入命令.build.bat -l .amaziot_bloom_os_sdksample3rd4.0_TM7711

PS F:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF λ .build.bat -l .amaziot_bloom_os_sdksample3rd4.0_TM7711 子目錄或文件 outbin 已經(jīng)存在。 命令語法不正確。 子目錄或文件 buildobj 已經(jīng)存在。 gnumake: Entering directory `F:/3.asr-b/cat.1-asr1606/1.software/BlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/3rd/4.0_TM7711' armcc.exe -c --cpu Cortex-R4 --no_unaligned_access -g -O2 --apcs /inter --diag_suppress 2084,1,2,177,188,223,550,1296,2795,6319,9931,9933 --diag_error=warning --gnu --thumb --loose_implicit_cast -DDATA_COLLECTOR_IMPL -DISPT_OVER_SSP -DDIAG_SSP_DOUBLE_BUFFER_USE_DYNAMIC_ALLOCATION -DENV_XSCALE -DL1_DCXO_ENABLED -DLTE_HIGH_MOBILITY_OPTIMIZATION -DRUN_XIP_MODE -DCRANE_Z2 -DCA_LONG_IPC_MSG -DNEZHA3 -DNEZHA3_1826 -DUPGRADE_PLMS -DUPGRADE_PLMS_SR -DLTE_GSMMULTIBCCH -DGPLC_LTE_RSSI_SCAN -DL1V_NEW_RSSI -DUPGRADE_PLMS_3G -DUPGRADE_PLMS_L1 -DUPGRADE_FG_PLMS -DFG_PLMS_URR -DUPGRADE_L1A_FG_PLMS -DUPGRADE_PLMS_STAGE_2 -DUPGRADE_MBCCH -DMULTI_BCCH_READY_IND -DURR_MRAT_ICS_SEARCH -DUPGRADE_ICS -DMRAT_NAS -DUPGRADE_PLMS_SEARCH_API -DICS_MBCCH -DICS_MBCCH_2G_RSSI -DDIAG_NEWPP -DPHS_SW_DEMO -DPHS_SW_DEMO_TTC -DPHS_SW_DEMO_TTC_PM -DFULL_SYSTEM -D_DDR_INIT_ -D_TAVOR_HARBELL_ -DUPGRADE_ARBEL_PLATFORM -D_TAVOR_B0_SILICON_ -DTDL1C_SPY_ENABLE -DDLM_TAVOR -DTAVOR -DFLAVOR_DUALCORE -DDEBUG_D2_MOR_REG_RESEREVED_ENABLE -D_DIAG_USE_COMMSTACK_ -D_TAVOR_DIAG_ -DPM_DEBUG_MODE_ENABLED -DPM_D2FULL_MODE -DPM_EXT_DBG_INT_ARR -DFEATURE_WB_AMR_PS -DMACRO_FOR_LWG -DHL_LWG -DOPTIMIZE_FOR_2G_BCCH -DPLAT_TEST -D_FDI_USE_OSA_ -DPLAT_USE_THREADX -DLWIP_IPNETBUF_SUPPORT -DCRANE_MCU_DONGLE -DAT_OVER_UART -DPHS_SW_DEMO_TTC_PM -DUPGRADE_LTE_ONLY -DEXT_AT_MODEM_SUPPORT -DLTEONLY_THIN_SINGLE_SIM -DLFS_FILE_SYS -DLFS_FILE_SYS_V2 -DPSM_ENABLE -DNO_PAHO_MQTT -DNO_XML -DNO_LWM2M -DREMOVE_MBEDTLS -DNO_AT_NET -DCRANE_SD_NOT_SUPPORT -DNTP -DYMODEM_EEH_DUMP -DENABLE_DM_LTEONLY -DLTEONLY_THIN -DNO_EXTEND_MY_Q_AT -DNOT_SUPPORT_HTTPS -DNOT_SUPPORT_PM813 -DCRANEL_4MRAM -DREMOVE_PB 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-IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xcswplatforminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xenvwin32inc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xcswBSPinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xcswplatformdev_platbuild -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xososainc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xosthreadxinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xosnu_xscaleinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacpsminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcachttpclientsrc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xdiagdiag_logicinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoptimerinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopintcinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xcswPMinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoppminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilTickManagerinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopBSPinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoptelephonyatcmdsrvinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoptelephonyatparserinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoptelephonysdkinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcachttpclientinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacciinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcaclwipv4v6srcinclude -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcaclwipv4v6srcincludearch -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcaclwipv4v6srcincludeipv4 -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcaclwipv4v6srcincludeipv6 -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcaclwipv4v6srcincludelwip -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcaclwipv4v6srcincludenetif -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopmmi_matinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xtavorArbelinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xtavorenvinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoptelephonymodeminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacdusterinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacfotainc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhalI2Cinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhalACIPCinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilfatsysflash -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilFDIsrcINCLUDE -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhalMMUinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilFDIsrcFDI_ADD -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilFDIsrcFM_INC -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilfatsysfshdr -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutillittlefsinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacttsinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacdialinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilcsw_memoryinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoputilitiesinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopcommpminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilnvminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilEEhandlerinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilEEhandlersrc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopRTCinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhoptelephonyci_clientinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhalBT_deviceinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhalUARTinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopmrdinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopdmainc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilsoftutilinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhalSPIinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacwebsocketinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacatnet_srvinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xsoftutilfotacomminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xaud_swAudioinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xaud_swACM_COMMinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xaud_swaudio_stubsrc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhopaaminc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xaud_swAudioHALinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xhaldbgshellinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFincludeasr160xpcacopencpuinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFamaziot_bloom_os_sdkutils -IF:/3.asr-b/cat.1-asr1606/1.software/BlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/3rd/4.0_TM7711aminc -IF:/3.asr-b/cat.1-asr1606/1.software/BlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/3rd/4.0_TM7711atcmdsinc -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFamaziot_bloom_os_sdk3rd_drives -IF:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFamaziot_bloom_os_sdk3rd_drivesTM7711 -o buildobj/ext_at_cmds.o F:/3.asr-b/cat.1-asr1606/1.software/BlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/3rd/4.0_TM7711/atcmds/src/ext_at_cmds.c armlink.exe buildobj/main.o buildobj/ext_at_cmds.o buildobj/ext_at_controller.o buildobj/drv_tm7711.o -o F:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFoutbinArbel_PMD2NONE_40M.axf --via F:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFprebuilt_1606lArbel_PMD2NONE_targ_objliblist.txt --elf --scatter F:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFprebuilt_1606lCrane_DS_4M_Ram_2M_Flash_XIP_CIPSRAM_Common_SingleSIM.sct --predefine="-DLTEONLY_THIN_SINGLE_SIM" --map --symbols --info sizes,totals --list F:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFoutbinArbel_PMD2NONE_40M.map --keep init.o(Header) --keep init.o(Vectors) --diag_suppress 6312,6314,6319,6329 --feedback F:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFoutfeedbackLinkOptLteonlyThin_SingleSim_NoSMS.txt F:3.asr-bcat.1-asr16061.softwareBlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRFtoolsbuildimage_1606l.bat SDK_PROD_TYPE : [DM] SDK_CUST_SKU : [THIN_SINGLE_SIM_NO_SMS] SDK_PS_MODE : [LTEONLY] SDK_CHIP_VER : [Z2A0] SDK_OS_TYPE : [TX] Platform Convertion Tools v4.01 with PS option extension Convertion done! |INPUT |outbincp_1606L.bin |MARK |NAME |EXEADDR .LOADADDR.LENGTH .CPZLADDR|COMPRESS STASTIC | |--------|--------|--------.--------.--------.--------|------------------------------| |This Is LteOnly 4M| |RW_CPZ_1|DDR_RW_ |7e119000.800641f8.0000cdd0.80065000|0000cdd0->00003000 |This Is LteOnly 4M| |RW_CPZ_2|PS_NCAH |7e388000.80070fc8.00001300.80068000|00001300->00001000 |This Is LteOnly 4M| |RW_CPZ_3|ITCM |7e3dac00.800722c8.0000f51c.80069000|0000f51c->0000a000 |This Is LteOnly 4M| |RW_CPZ_4|CODE_PS |7e1aa000.800817e4.0002fe38.80073000|0002fe38->0001e000 |This Is LteOnly 4M| |RW_CPZ_5|CODEPSB |7e1dc000.800b161c.000339c0.80091000|000339c0->0001b000 |This Is LteOnly 4M| |RW_CPZ_6|CODEPSC |7e213000.800e4fdc.000323ec.800ac000|000323ec->0001b000 |This Is LteOnly 4M| |RW_CPZ_7|CODEPSD |7e249000.801173c8.00028d88.800c7000|00028d88->0001a000 |This Is LteOnly 4M| |RW_CPZ_8|CODEPSE |7e277000.80140150.0002e310.800e1000|0002e310->0001a000 |This Is LteOnly 4M| |RW_CPZ_9|CODEPSF |7e2a9000.8016e460.0001c948.800fb000|0001c948->00011000 |This Is LteOnly 4M| |RW_CPZ_A|CODE_PL |7e2ca000.8018ada8.0002fa44.8010c000|0002fa44->0001e000 |This Is LteOnly 4M| |RW_CPZ_B|CODEPLB |7e2fa000.801ba7ec.00039098.8012a000|00039098->00021000 |This Is LteOnly 4M| |RW_CPZ_C|CODEPLC |7e337000.801f3884.000268d4.8014b000|000268d4->00011000 |--------|--------|--------.--------.--------.--------|------------------------------| | | 0x00203158 -> 0x00145000| | | 2.012(MB) -> 1.270(MB)| |------------------------------------------------------------------------------------| cp_1606L.axf cp_1606L.bin cp_1606L.map gnumake: Leaving directory `F:/3.asr-b/cat.1-asr1606/1.software/BlOOM_OS_1606_OPENCPU_1191_A09_WIHT_NEWRF/amaziot_bloom_os_sdk/sample/3rd/4.0_TM7711' "copy NEZHAC_CP_CNR_MIFI_TX.bin to ./ " 已復制 1 個文件。

4.9 生成固件

參考入門中開發(fā)工具，生成工具。

4.10 測試

測試步驟：

參考編譯教程，和文檔開頭的編譯指令，進行編譯

按照編譯教程選擇對應的選項

燒錄

4.11 固件

上電后，串口會打印出當前采集到的芯片數(shù)值，數(shù)值(x)和標準砝碼(y)之間符合y=kx+b線性公式，測試出k和b的值，就可以計算出y；

點擊下載 TM7711 Demo 固件

5 生態(tài)組件鏈接

稱重傳感器

本文章源自奇跡物聯(lián)開源的物聯(lián)網(wǎng)應用知識庫Cellular IoT Wiki，更多技術(shù)干貨歡迎關(guān)注收藏Wiki：Cellular IoT Wiki 知識庫（https://rckrv97mzx.feishu.cn/wiki/wikcnBvAC9WOkEYG5CLqGwm6PHf）

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Cellular IoT Wiki初心：

在我們長期投身于蜂窩物聯(lián)網(wǎng) ODM/OEM 解決方案的實踐過程中，一直被物聯(lián)網(wǎng)技術(shù)碎片化與產(chǎn)業(yè)資源碎片化的問題所困擾。從產(chǎn)品定義、芯片選型，到軟硬件研發(fā)和測試，物聯(lián)網(wǎng)技術(shù)的碎片化以及產(chǎn)業(yè)資源的碎片化，始終對團隊的產(chǎn)品開發(fā)交付質(zhì)量和效率形成制約。為了減少因物聯(lián)網(wǎng)碎片化而帶來的重復開發(fā)工作，我們著手對物聯(lián)網(wǎng)開發(fā)中高頻應用的技術(shù)知識進行沉淀管理，并基于 Bloom OS 搭建了不同平臺的 RTOS 應用生態(tài)。后來我們發(fā)現(xiàn)，很多物聯(lián)網(wǎng)產(chǎn)品開發(fā)團隊都面臨著相似的困擾，于是，我們決定向全體物聯(lián)網(wǎng)行業(yè)開發(fā)者開放奇跡物聯(lián)內(nèi)部沉淀的應用技術(shù)知識庫 Wiki，期望能為更多物聯(lián)網(wǎng)產(chǎn)品開發(fā)者減輕一些重復造輪子的負擔。

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審核編輯 黃宇