diff options
Diffstat (limited to 'Bootloaders/DFU/BootloaderDFU.c')
| -rw-r--r-- | Bootloaders/DFU/BootloaderDFU.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/Bootloaders/DFU/BootloaderDFU.c b/Bootloaders/DFU/BootloaderDFU.c index ce4e45981..f2247eb8b 100644 --- a/Bootloaders/DFU/BootloaderDFU.c +++ b/Bootloaders/DFU/BootloaderDFU.c @@ -102,6 +102,23 @@ int main(void) /* Configure hardware required by the bootloader */ SetupHardware(); + #if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1)) + /* Disable JTAG debugging */ + MCUCR |= (1 << JTD); + MCUCR |= (1 << JTD); + + /* Enable pull-up on the JTAG TCK pin so we can use it to select the mode */ + PORTF |= (1 << 4); + _delay_ms(10); + + /* If the TCK pin is not jumpered to ground, start the user application instead */ + RunBootloader = (!(PINF & (1 << 4))); + + /* Re-enable JTAG debugging */ + MCUCR &= ~(1 << JTD); + MCUCR &= ~(1 << JTD); + #endif + /* Enable global interrupts so that the USB stack can function */ sei(); @@ -153,6 +170,13 @@ void EVENT_USB_Device_ControlRequest(void) { /* Get the size of the command and data from the wLength value */ SentCommand.DataSize = USB_ControlRequest.wLength; + + /* Ignore any requests that aren't directed to the DFU interface */ + if ((USB_ControlRequest.bmRequestType & (CONTROL_REQTYPE_TYPE | CONTROL_REQTYPE_RECIPIENT)) != + (REQTYPE_CLASS | REQREC_INTERFACE)) + { + return; + } switch (USB_ControlRequest.bRequest) { |