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Clarify variables used in TX callback.

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The power measurement depends on the number of bytes that were valid
from the previous use of the transfer buffer.

The number of bytes to be read to fill the next transfer, is the full
size of the buffer.
This commit is contained in:
Martin Ling
2022-09-14 15:10:13 +01:00
parent fdfe310f9a
commit 29787cd291
1 changed files with 2 additions and 2 deletions
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4
host/hackrf-tools/src/hackrf_transfer.c
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@ -486,9 +486,8 @@ int tx_callback(hackrf_transfer* transfer)
}
/* Accumulate power (magnitude squared). */
bytes_to_read = transfer->valid_length;
uint64_t sum = 0;
for (i = 0; i < bytes_to_read; i++) {
for (i = 0; i < transfer->valid_length; i++) {
int8_t value = transfer->buffer[i];
sum += value * value;
}
@ -497,6 +496,7 @@ int tx_callback(hackrf_transfer* transfer)
byte_count += transfer->valid_length;
stream_power += sum;
bytes_to_read = transfer->buffer_length;
if (file == NULL) { // transceiver_mode == TRANSCEIVER_MODE_SS
/* Transmit continuous wave with specific amplitude */
if (limit_num_samples) {