DAWN OPENSOURE FPGA PCIE TDM IP CORE

A fully open source FPGA PCIe TDM IP Core that it is designed for compatibility with Tiger320 chip, but Dawn FPGA TDM IP core also supports

• open source, therefore you can build your own Asterisk TDM card (2 Dahdi channels with one TDM bus open), also with a powerful DMA engine
• fully compatible with Asterisk Dahdi channel
• 2 separated TDM bus, totally supports 64 Dahdi channels (commercial version only)
• 2 separated DMA engines built-in to support high-density channels without taking much CPU resource (commercial version only)

For more information, please visit out our website at www.switchpi.com

Install manual

Check out the dawn Dahdi driver git clone https://github.com/lixinswitchpi/dawn

Compile the driver

cd dahdi-tools-2.11.1

make

make install

reboot

Verify the driver is loaded

dmesg

[ 2720.912991] Dawn Version is 0x02

[ 2720.912998] Dawn Test register is 0xbabababa

[ 2720.967327] Created Span WCTDM/0/0 (SwitchPi DAWN TDM BUS 0)

[ 2720.967335] Created Span WCTDM/0/1 (SwitchPi DAWN TDM BUS 1)

[ 2721.167936] Module 0 TDM BUS 0: Installed -- AUTO FXO (FCC mode)

[ 2722.047676] Module 0 TDM BUS 1: Installed -- AUTO FXS

[ 2722.928888] Module 0 TDM BUS 1: Installed -- AUTO FXS

[ 2722.928917] Found a Wildcard TDM: SwitchPi DAWN (3 modules)

Load Asterisk to run test

dahdi_genconf

dahdi_scan

[1]

active=yes

alarms=OK

description=SwitchPi DAWN TDM BUS 0

name=WCTDM/0/0

manufacturer=SwitchPi

devicetype=DAWN TDM

location=PCI Bus 02 Slot 01

basechan=1

totchans=4

irq=0

type=analog

port=1,FXO

port=2,none

port=3,none

port=4,none

[2]

active=yes

alarms=OK

description=SwitchPi DAWN TDM BUS 1

name=WCTDM/0/1

manufacturer=SwitchPi

devicetype=DAWN TDM

location=PCI Bus 02 Slot 01

basechan=5

totchans=4

irq=0

type=analog

port=5,FXS

port=6,FXS

port=7,none

port=8,none

dahdi_cfg -vvv

DAHDI Tools Version - 2.11.1

DAHDI Version: 2.11.1

Echo Canceller(s): MG2

Configuration

Channel map:

Channel 01: FXS Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 01)

Channel 05: FXO Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 05)

Channel 06: FXO Kewlstart (Default) (Echo Canceler: mg2) (Slaves: 06)

3 channels to configure.

Setting echocan for channel 1 to mg2

Setting echocan for channel 5 to mg2

Setting echocan for channel 6 to mg2

asterisk -f 2 > /dev/null &

asterisk -cvvvvvvvgr

root@ast1:/usr/src# asterisk -cvvvvvvvvvvgr

ast1*CLI> dahdi show ch

channels channel

ast1*CLI> dahdi show status

Description Alarms IRQ bpviol CRC Fra Codi Options LBO

SwitchPi DAWN TDM BUS 0 OK 0 0 0 CAS Unk 0 db (CSU)/0-133 feet (DSX-1)

SwitchPi DAWN TDM BUS 1 OK 0 0 0 CAS Unk 0 db (CSU)/0-133 feet (DSX-1)

ast1*CLI> dahdi show chan

channels channel

ast1*CLI> dahdi show channels

Chan Extension Context Language MOH Interpret Blocked In Service Description

pseudo default default Yes

  1                 from-pstn                  default                         Yes                                        
  
  5                 from-internal              default                         Yes                                        
  
  6                 from-internal              default                         Yes                                        

ast1*CLI>