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Halt sweep when USB buffer full

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This commit is contained in:
Jan Käberich 2021-01-09 21:21:47 +01:00
parent 0f758584bf
commit 51806b936c
3 changed files with 36 additions and 2 deletions
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6
Software/VNA_embedded/Application/Drivers/USB/usb.c
View file

@ -223,7 +223,7 @@ void usb_init(usbd_recv_callback_t receive_callback) {
}
bool usb_transmit(const uint8_t *data, uint16_t length) {
// attempt to add data to fifo
if(usb_transmit_fifo_level + length > sizeof(usb_transmit_fifo)) {
if(length > usb_available_buffer()) {
// data won't fit, abort
return false;
}
@ -280,3 +280,7 @@ void USB_LP_IRQHandler(void)
{
HAL_PCD_IRQHandler(&hpcd_USB_FS);
}
uint16_t usb_available_buffer() {
return sizeof(usb_transmit_fifo) - usb_transmit_fifo_level;
}

1
Software/VNA_embedded/Application/Drivers/USB/usb.h
View file

@ -19,6 +19,7 @@ typedef void(*usbd_recv_callback_t)(const uint8_t *buf, uint16_t len);
void usb_init(usbd_recv_callback_t receive_callback);
bool usb_transmit(const uint8_t *data, uint16_t length);
uint16_t usb_available_buffer();
void usb_log(const char *log, uint16_t length);