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| author | Philip Balister <philip@opensdr.com> | 2010-09-21 20:06:43 +0000 |
|---|---|---|
| committer | Philip Balister <philip@opensdr.com> | 2010-09-21 20:06:43 +0000 |
| commit | 77cdb4a9695e71e64e1d87cfad2cb4d8717f971e (patch) | |
| tree | a3dc039b2c7124f988acda462d2aa76f5877f011 /host/apps/omap_debug/usrp-e-mm-loopback.c | |
| parent | 943bfa271c97b36dcba74f1d65220e6f66f50c7f (diff) | |
| download | uhd-77cdb4a9695e71e64e1d87cfad2cb4d8717f971e.tar.gz uhd-77cdb4a9695e71e64e1d87cfad2cb4d8717f971e.tar.bz2 uhd-77cdb4a9695e71e64e1d87cfad2cb4d8717f971e.zip | |
Use a dummy write to start DMA transfers when sending data to the FPGA.
Poll will also start data transfers.
Diffstat (limited to 'host/apps/omap_debug/usrp-e-mm-loopback.c')
| -rw-r--r-- | host/apps/omap_debug/usrp-e-mm-loopback.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/host/apps/omap_debug/usrp-e-mm-loopback.c b/host/apps/omap_debug/usrp-e-mm-loopback.c index 053f60b60..f5fc83c87 100644 --- a/host/apps/omap_debug/usrp-e-mm-loopback.c +++ b/host/apps/omap_debug/usrp-e-mm-loopback.c @@ -181,7 +181,7 @@ static void *write_thread(void *threadid) if (rb_write == rb_size.num_tx_frames) rb_write = 0; -// cnt = write(fp, tx_data, p->len * 2 + 12); + cnt = write(fp, NULL, 0); // if (cnt < 0) // printf("Error returned from write: %d\n", cnt); // sleep(1); |