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[Other resource] 8870

Description: AT89c2051控制9200b发双音频码用8870解码并将BCD码返回AT89C2051,然后比较的源代码和Hex文件。-AT89c2051 Two-control 9200b audio decoder yards with 8,870 and will return to BCD AT89C2051, then compare the source code and Hex documents.
Platform: | Size: 17780 | Author: 常春 | Hits:

[Other resource] encodeanddecode

Description: 使用凌阳单片机，控制5088编码芯片编码并传输到8870解码芯片，得到所需数字信号。
Platform: | Size: 9982 | Author: 李博 | Hits:

[Other resource] DTMF

Description: 基于5088和8870的DTMF信号的编解码程序
Platform: | Size: 3174 | Author: 蔡辉迁 | Hits:

[Documents] 8870中文资料

Description: 8870中文资料
Platform: | Size: 268800 | Author: cfeng05 | Hits:

[SCM] 8870

Description: AT89c2051控制9200b发双音频码用8870解码并将BCD码返回AT89C2051,然后比较的源代码和Hex文件。-AT89c2051 Two-control 9200b audio decoder yards with 8,870 and will return to BCD AT89C2051, then compare the source code and Hex documents.
Platform: | Size: 17408 | Author: 常春 | Hits:

[SCM] MT8870

Description: 双音频解码器MT8870的驱动，用串口接收数据，可从串口调试器查看接收的数据-dual audio decoder di drives with Serial receive data from the serial debugger view of the data received
Platform: | Size: 11264 | Author: 梁江 | Hits:

[SCM] RADIO_RE

Description: 这个源代码是关于MCS-51的无线接收，用89S52控制MT8870B进行DTMF解码。程序相当的经典，本人调试了几周后，达到了非常好的效果。误码率相当的小。我觉得好东西要大家分享的，所以今天我上传此代码，与大家共同分析进步。-the source code is on the MCS-51 wireless receiver, S52 control with 89 MT8870B for DTMF decoder. Quite the classic procedure, I debug a few weeks later, to achieve very good results. The error rate is very small. I think that good things should be shared, so I upload this code, and the analysis of common progress.
Platform: | Size: 27648 | Author: nick | Hits:

[SCM] encodeanddecode

Description: 使用凌阳单片机，控制5088编码芯片编码并传输到8870解码芯片，得到所需数字信号。-Sunplus use single-chip, chip encoding control code 5088 and transmitted to the 8870 decoder chip, get the digital signal.
Platform: | Size: 51200 | Author: 李博 | Hits:

[Other] MT8870

Description: 本文为MT8870的中英文对照手册，详细内容见文章-This article is a bilingual MT8870 manual details see article
Platform: | Size: 263168 | Author: 刘晖 | Hits:

[SCM] DTMF

Description: 基于5088和8870的DTMF信号的编解码程序-Based on 5088 and 8870 of the DTMF signal codec procedures
Platform: | Size: 3072 | Author: 蔡辉迁 | Hits:

[assembly language] rfreceive

Description: 51无线接收源码，有原理图和详细注释，51系列的汇编语言编写-51 radio source, has detailed schematics and notes, a compilation of 51 languages
Platform: | Size: 20480 | Author: winfred | Hits:

[Other Embeded program] 2-LINE-Intercom

Description: This project is used as an electronic private exchange. It has two telephones, which have the intercom facility, and they can be connected to the telephone line. All the functions are controlled by the 8-bit microcontroller AT89C2051 which has an Program Memory (ROM) of 2 kilobytes. The DTMF (Dual tone multiple frequency) signals are decoded by the DTMF decoder IC 8870 and its output will be in decimal of the pressed key. The switching functiond are done by 12v relays.
Platform: | Size: 47104 | Author: Binu | Hits:

[Other] caller-id.c

Description: Caller ID with mega8 and 8870 chip for dtmf detection and shown in LCD
Platform: | Size: 3072 | Author: a | Hits:

[Embeded Linux] cysintercom

Description: This project is used as an electronic private exchange. It has two telephones, which have the intercom facility, and they can be connected to the telephone line. All the functions are controlled by the 8-bit microcontroller AT89C2051 which has an Program Memory (ROM) of 2 kilobytes. The DTMF (Dual tone multiple frequency) signals are decoded by the DTMF decoder IC 8870 and its output will be in decimal of the pressed key. The switching functiond are done by 12v relays.
Platform: | Size: 21504 | Author: sivakumar | Hits:

[Embeded-SCM Develop] Source

Description: 8870 giao tiep line voi 8051
Platform: | Size: 19456 | Author: Nguyen | Hits:

[SCM] Sch

Description: SCH mach giao tiep 8870 voi 8051
Platform: | Size: 510976 | Author: Nguyen | Hits:

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