October 2015 - Allstar-Digital

Got a new toy today
by Steve Zingman 31 Oct '15

31 Oct '15

Thanks to Mike N4IRR being impatient, I received my DV4Mini today. I have it running on a Odroid C1 under Jessie. The UI is running on my Linux work station. Played a little with D-Star on the DCS006 Z. Seems to work. Have not had a real QSO yet. Played around a little with DMR+ More to follow. Steve N4IRS -- ,,, (o o) -----ooO-(_)-Ooo------ --- N4IRS was Here ---

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DMRShark
by Mike Zingman 31 Oct '15

31 Oct '15

Interesting code: https://github.com/nonoo/dmrshark

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USRP
by Mike Zingman 30 Oct '15

30 Oct '15

Just to get things started. The USRP channel driver is a very useful tool for getting PCM audio in/our of allstar in a pure digital format. We used this to transfer decoded AMBE from DMR to Allstar with this snipit of code: *#define USRP_PCM_SAMPLES **160* * #define USRP_VOICE_FRAME_SIZE (USRP_PCM_SAMPLES*sizeof(short)) // 0.02 * 8k* * #define USRP_ENDPOINT "192.168.1.180"* * #define USRP_PORT 32001* * enum { USRP_TYPE_VOICE=0, USRP_TYPE_DTMF, USRP_TYPE_TEXT };* * // udp data header* * struct _chan_usrp_bufhdr {* * char eye[4]; // verification string* * uint32_t seq; // sequence counter* * uint32_t memory; // memory ID or zero (default)* * uint32_t keyup; // tracks PTT state* * uint32_t talkgroup; // trunk TG id* * uint32_t type; // see above enum* * uint32_t mpxid; // for future use* * uint32_t reserved; // for future use* * short audio[USRP_PCM_SAMPLES];* * };* * static DV3000_UDP *udp2 = NULL;* * static int seq = 0;* * void sendAudioToUSRP( void *buffer, int bytes )* * {* * struct _chan_usrp_bufhdr packet;* * unsigned char *recvBuffer = (unsigned char *)&packet;* * int packetSize = sizeof( struct _chan_usrp_bufhdr );* * memset(recvBuffer, 0, packetSize);* * if (udp2 == NULL)* * {* * char address[] = USRP_ENDPOINT;* * udp2 = new DV3000_UDP();* * udp2->openSocket(address, USRP_PORT);* * if (packetSize != ((USRP_PCM_SAMPLES * sizeof(short)) + (8 * sizeof(uint32_t))))* * printf("Alignment error");* * }* * memcpy(packet.eye, "USRP", 4);* * packet.keyup = 1;* * packet.seq = htonl(seq++);* * packet.type = USRP_TYPE_VOICE;* * memcpy(packet.audio, buffer, bytes);* * udp2->writeSocket(recvBuffer, packetSize);* * }*

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testing
by Bryan Fields 30 Oct '15

30 Oct '15

Testing new list -- Bryan Fields 727-409-1194 - Voice 727-214-2508 - Fax http://bryanfields.net

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Welcome to AllStar Digital
by Steve N4IRS 30 Oct '15

30 Oct '15

Welcome to AllStar Digital. I wanted to move the discussions of Digital modes built on AllStar off the regular list and on to a place we can discuss without bothering the analog only people. At least for now, anything goes. I do not want to move or replace the normal list yet another list. Standard AllStar questions should still be on the app_rpt users list. -- ,,, (o o) -----ooO-(_)-Ooo------ --- N4IRS was Here ---

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