diff options
Diffstat (limited to 'Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c')
-rw-r--r-- | Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c index a99a95680..861f55b5d 100644 --- a/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c +++ b/Demos/Host/LowLevel/StillImageHost/Lib/StillImageCommands.c @@ -108,28 +108,28 @@ uint8_t SImage_ReceiveEventHeader(void) */ uint8_t SImage_ReceiveBlockHeader(void) { - uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS; + uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS; + uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber(); /* Unfreeze the data IN pipe */ Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE); Pipe_Unfreeze(); /* Wait until data received on the IN pipe */ - while (!(Pipe_IsReadWriteAllowed())) + while (!(Pipe_IsINReceived())) { + uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber(); + /* Check to see if a new frame has been issued (1ms elapsed) */ - if (USB_INT_HasOccurred(USB_INT_HSOFI)) + if (CurrentFrameNumber != PreviousFrameNumber) { - /* Clear the flag and decrement the timeout period counter */ - USB_INT_Clear(USB_INT_HSOFI); + /* Save the new frame number and decrement the timeout period */ + PreviousFrameNumber = CurrentFrameNumber; TimeoutMSRem--; /* Check to see if the timeout period for the command has elapsed */ if (!(TimeoutMSRem)) - { - /* Return error code */ - return PIPE_RWSTREAM_Timeout; - } + return PIPE_RWSTREAM_Timeout; } Pipe_Freeze(); |