一 概述
TM7711 是应用于电子秤低频测量的单通道模拟前端。该器件可以接受直接来自传感器的低电平的输入信号,然后产生串行的数字输出。利用 Σ-Δ 转换技术实现了 24 位无丢失代码性能。通过选定的输入信号被送到一个基于模拟调制器的增益可编程专用前端。片内数字滤波器处理调制器的输出信号,通过通信口发命令可调节滤波器的截止点和输出更新速率,从而对数字滤波器的第一个陷波进行编程。TM7711 只需 2.6~5.5V 单电源供电。TM7711 是全差分模拟输入,带有一个基准输入。TM7711 是一款用于高精度电子秤系统的理想产品,由于采用特殊的结构确保器件具有极低功耗,并且内建有掉电模式以减少待机功耗。该芯片还具有集成度高、响应速度快、抗干扰强等优点,可以大大降低电子秤系统的整机成本,提高整机系统的性能和可靠性。
二 功能特点
1对全差分输入通道的 ADC
片内直接温度测量和数字输出
24 位无丢失代码
片内低噪声放大器,增益为 128
±0.001%非线性
可选 10Hz 和 40Hz 的输出数据速率
同步抑制 50Hz 和 60Hz 的电源干扰
内置时钟振荡器无需任何外接器件
简单的二线串行通信口
工作电压范围:2.6 ~ 5.5V
工作温度范围:-40 ~ +85℃
封装形式:SOP8 /DIP8 /TSSOP8
三 典型应用
四 管脚信息
五 串口通信
串口通讯线由管脚 PD_SCK 和 DOUT 组成,用来输出数据,选择输出数据速率和输入信号。当数据输出管脚 DOUT 为高电平时,表明 A/D 转换器还未准备好输出数据,此时串口时钟输入信号 PD_SCK 应为低电平。当 DOUT 从高电平变低电平后,PD_SCK 应输入 25 至 27 个不等的时钟脉冲(图 3)。其中第一个时钟脉冲的上升沿将读出输出 24 位数据的最高位(MSB),直至第 24 个时钟脉冲完成,24 位输出数据从最高位至最低位逐位输出完成。第 25 至 27 个时钟脉冲用来选择下一次 A/D 转换的输出数据速率和输入信号,参见表 4。PD_SCK 的输入时钟脉冲数不应少于 25 或多于27,否则会造成串口通讯错误。当 A/D 转换器的输入信号或输出数据速率改变时,A/D 转换器需要 4 个数据输出周期才能稳定。DOUT 在 4 个数据输出周期后才会从高电平变低电平,输出有效数据。
六 组件的使用
1 Gitee链接地址
Demo位于amaziot_bloom_os_sdksample3rd3.1_SSD1315
Gitee源码地址:https://gitee.com/ning./hongdou
Github源码地址:https://github.com/ayumid/hongdou
编译指令:.build.bat -l .amaziot_bloom_os_sdksample3rd3.1_SSD1315
2 组件功能介绍
驱动称重芯片,获取当前重量对应的ADC值。
根据二元一次方程(y为砝码重量,x为adc值)y = ax + b可以计算出a,b的值。之后可以根据a,b,adc的值来计算y值。
3 代码讲解
1 drv_tm7711_get_weight_value
功能:该函数用于,获取重量。
参数:
参数 | 释义 |
k | 二元一次方程,在坐标系中斜线的斜率 |
b | 二元一次返程,在坐标系中和Y轴交点到原点的距离 |
返回值:无
示例:
//显示图片,注意参数和实际点阵大小一致 drv_ssd1315_show_picture(0,12,132,37,BMP1,1);
2 drv_ssd1315_scroll_display
功能:该函数用于,滚动显示汉字。
参数:
参数 | 释义 |
num | 显示汉字的个数 |
space | 每一遍显示的间隔 |
mode | 0,反色显示;1,正常显示 |
返回值:无
示例:
drv_tm7711_get_weight_value(0.26483, 0.69879);
3 drv_tm7711_get_val
功能:该函数用于,获取tm7711采样值。
参数:
参数 | 释义 |
uc_next | 选择下一次A/D 转换的输出数据速率和输入信号 |
data | 获取的传感器数据 |
返回值:无
示例:
temp = drv_tm7711_read_data(uc_next);
4 drv_tm7711_read_data
功能:该函数用于,显示数字。
参数:
参数 | 释义 |
uc_next |
选择下一次A/D 转换的输出数据速率和输入信号 25 差分信号 10Hz 26 温度测量 40Hz 27 差分信号 40Hz |
返回值:无
示例:
5 drv_tm7711_dout_pin_init
功能:该函数用于,模拟i2c,初始化SDA引脚为输入。
参数:无
返回值:无
示例:
drv_tm7711_dout_pin_init();
6 drv_tm7711_pdsck_pin_init
功能:该函数用于,模拟i2c,初始化SCL引脚为输出。
参数:
返回值:无
示例:
drv_tm7711_pdsck_pin_init();
4 Demo实战
4.1 创建一个Demo
复制20.1_file_xtu示例工程,到同一个文件夹下,修改文件名为4.0_TM7711,如图:
4.2 修改makefile
增加文件组件所在目录头文件路径,和源文件路径,如图:
4.3 增加头文件
使用代码编辑器,将新建的工程文件加入代码编辑器中,打开main.c,修改main.c,加入am.h等头文件,如图:
4.4 修改代码
在Phase2Inits_exit 创建一个任务,如图:
4.5 宏定义介绍
sample_sc7a20_uart_printf
输出日志到DEBUG 串口,日志比较少,可以输出到这个串口,如果日志比较多,需要输出到usb口,以免不必要的问题出现
sample_sc7a20_catstudio_printf
输出日志到USB 串口,使用catstudio查看,catstudio查看日志需要更新对应版本mdb.txt文件,软件打开filtter过滤日志,只查看用户输出的日志
SAMPLE_SC7A20_STACK_SIZE
栈空间宏定义
4.6 全局变量介绍
sample_sc7a20_int_detect_stack_ptr
任务栈空间,本例使用数组实现,用户在做项目时,可以预先估算下当先任务需要的大致栈空间,OS没有提供可以查看栈空间使用情况的API
sample_sc7a20_int_detect_task_ref
任务指针
4.7 函数介绍
Phase1Inits_enter
底层初始化,本例空
Phase1Inits_exit
底层初始化,本例空
Phase2Inits_enter
底层初始化,本例空
Phase2Inits_exit
创建主任务,初始化消息队列,定时器,任务等。
代码片段:
void Phase2Inits_exit(void) { int ret = 0; // GPIOConfiguration config = {0}; //创建定时器 // OSATimerCreate(&sample_sc7a20_int_detect_timer_ref); //创建中断事件 // 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); //创建中断处理任务 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引脚,这里使用70脚 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
主任务,获取称重信息,需要手动根据砝码计算出k和b的值,然后才可以调用drv_tm7711_get_weight_value,计算出实际重量,每一个传感器所在pcb状态可能不一致,所以每一台设备,k和b的值都需要校准。
代码片段:
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 编译
在SDK根目录打开命令行,输入命令.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 子目录或文件 outbin 已经存在。 命令语法不正确。 子目录或文件 buildobj 已经存在。 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 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-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 ./ " 已复制 1 个文件。
4.9 生成固件
参考入门中开发工具,生成工具。
4.10 测试
测试步骤:
参考编译教程,和文档开头的编译指令,进行编译
按照编译教程选择对应的选项
烧录
4.11 固件
上电后,串口会打印出当前采集到的芯片数值,数值(x)和标准砝码(y)之间符合y=kx+b线性公式,测试出k和b的值,就可以计算出y;
点击下载 TM7711 Demo 固件
5 生态组件链接
称重传感器
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