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Merge pull request #1203 from martinling/8k-transfers

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Reduce firmware USB transfer size from 16KB to 8KB
This commit is contained in:
Michael Ossmann
2022-12-01 12:40:26 -05:00
committed by GitHub
parent 32a4541bf6 fefa4f0e45
commit e226a416de
1 changed files with 3 additions and 2 deletions
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5
firmware/hackrf_usb/usb_api_transceiver.c
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@ -45,7 +45,7 @@
#include "usb_endpoint.h"
#include "usb_api_sweep.h"
#define USB_TRANSFER_SIZE 0x4000
#define USB_TRANSFER_SIZE 0x2000
typedef struct {
uint32_t freq_mhz;
@ -451,7 +451,8 @@ void tx_mode(uint32_t seq)
baseband_streaming_enable(&sgpio_config);
started = true;
}
if ((usb_count - m0_state.m0_count) <= USB_TRANSFER_SIZE) {
if ((usb_count - m0_state.m0_count) <=
(USB_BULK_BUFFER_SIZE - USB_TRANSFER_SIZE)) {
usb_transfer_schedule_block(
&usb_endpoint_bulk_out,
&usb_bulk_buffer[usb_count & USB_BULK_BUFFER_MASK],