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Description: 这是一个优秀的Telcom公司开发的Q921商用协议栈，已在很多项目中使用并验证。实现了完整的Q921 LAPB和LAPD协议栈-This is an excellent Telcom developed Q921 commercial protocol stack has been used in many projects and verify. To achieve a complete Q921 LAPB and LAPD protocol stack
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Size: 189440 |
Author: Zhu Zhengqiang |
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Description: 实现LAPD帧的校验、插值和去插值函数,既封包和解包处理-LAPD frame to achieve the calibration, interpolation and the interpolation function to
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Size: 183296 |
Author: 张强 |
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Description: 高级链路层协议的实现，vhdl，fpga-- 8 bit parallel backend interface
- use external RX and TX clocks
- Start and end of frame pattern generation
- Start and end of frame pattern checking
- Idle pattern generation and detection (all ones)
- Idle pattern is assumed only after the end of a frame which is signaled by an abort signal
- Zero insertion
- Abort pattern generation and checking
- Address insertion and detection by software
- CRC generation and checking (Optional, external, since CRC-16 or CRC-32 can be used)
- FIFO buffers and synchronization (External)
- Byte aligned data (if data is not aligned to 8-bits extra random bits are inserted)
- Q.921, LAPB and LAPD compliant.
- For complete specifications refer to spec document
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Size: 188416 |
Author: |
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Description: 该消息由网络侧向被叫用户发送的，用来标识该被叫用户已经被授予该连接通路。该消息也会由主叫用户向网络侧发送，用来确认对称的通路连接控制过程。
LAPD: 0 R (F) I-frame (NR=2e NS=5e)
Q.931-BRI: ref=0x001a CONN ACK
< 1: ( 9) 2751348
< 00 01 bc 5c 46 02 00 1a 0f
- 该消息由网络侧向被叫用户发送的，用来标识该被叫用户已经被授予该连接通路。该消息也会由主叫用户向网络侧发送，用来确认对称的通路连接控制过程。
LAPD: 0 R (F) I-frame (NR=2e NS=5e)
Q.931-BRI: ref=0x001a CONN ACK
< 1: ( 9) 2751348
< 00 01 bc 5c 46 02 00 1a 0f
Platform: |
Size: 415744 |
Author: 域名 |
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