mirror of
https://github.com/saymrwulf/uhd.git
synced 2026-05-16 21:10:10 +00:00
58 lines
1.3 KiB
C
58 lines
1.3 KiB
C
#include <stdio.h>
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#include <sys/types.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <stddef.h>
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#include "usrp_e.h"
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// max length #define PKT_DATA_LENGTH 1016
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int main(int argc, char *argv[])
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{
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struct usrp_transfer_frame *tx_data, *rx_data;
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int i, fp, packet_data_length, cnt;
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struct usrp_e_ctl16 d;
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if (argc < 2) {
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printf("%s data_size (in bytes < 2040)\n", argv[0]);
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return -1;
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}
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packet_data_length = atoi(argv[1]);
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fp = open("/dev/usrp_e0", O_RDWR);
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d.offset = 14;
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d.count = 1;
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d.buf[0] = (1 << 13);
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ioctl(fp, USRP_E_WRITE_CTL16, &d);
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tx_data = malloc(2048);
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rx_data = malloc(2048);
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tx_data->status = 0;
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tx_data->len = sizeof(struct usrp_transfer_frame) + packet_data_length;
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while (1) {
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for (i = 0; i < packet_data_length; i++) {
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tx_data->buf[i] = random() >> 24;
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}
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cnt = write(fp, tx_data, 2048);
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cnt = read(fp, rx_data, 2048);
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if (tx_data->len != rx_data->len)
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printf("Bad frame length sent %d, read %d\n", tx_data->len, rx_data->len);
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for (i = 0; i < packet_data_length; i++) {
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if (tx_data->buf[i] != rx_data->buf[i])
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printf("Bad data at %d, sent %d, received %d\n", i, tx_data->buf[i], rx_data->buf[i]);
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}
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printf("---------------------------------------------------\n");
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sleep(1);
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}
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}
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