Add branch for the conversion of demos to use standard C header files for configuration, rather than makefile defined macros.

This commit is contained in:
Dean Camera 2012-05-10 19:24:58 +00:00
parent e8570c4a37
commit 359fbfe14d
395 changed files with 9912 additions and 2756 deletions

View file

@ -92,6 +92,27 @@ static uint16_t StartAddr = 0x0000;
*/
static uint16_t EndAddr = 0x0000;
/** Magic lock for forced application start. If the HWBE fuse is programmed and BOOTRST is unprogrammed, the bootloader
* will start if the /HWB line of the AVR is held low and the system is reset. However, if the /HWB line is still held
* low when the application attempts to start via a watchdog reset, the bootloader will re-start. If set to the value
* \ref MAGIC_BOOT_KEY the special init function \ref Application_Jump_Check() will force the application to start.
*/
uint32_t MagicBootKey ATTR_NO_INIT;
/** Special startup routine to check if the bootloader was started via a watchdog reset, and if the magic application
* start key has been loaded into \ref MagicBootKey. If the bootloader started via the watchdog and the key is valid,
* this will force the user application to start via a software jump.
*/
void Application_Jump_Check(void)
{
// If the reset source was the bootloader and the key is correct, clear it and jump to the application
if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY))
{
MagicBootKey = 0;
AppStartPtr();
}
}
/** Main program entry point. This routine configures the hardware required by the bootloader, then continuously
* runs the bootloader processing routine until instructed to soft-exit, or hard-reset via the watchdog to start
@ -695,6 +716,9 @@ static void ProcessWriteCommand(void)
{
if (SentCommand.Data[1] == 0x00) // Start via watchdog
{
/* Unlock the forced application start mode of the bootloader if it is restarted */
MagicBootKey = MAGIC_BOOT_KEY;
/* Start the watchdog to reset the AVR once the communications are finalized */
wdt_enable(WDTO_250MS);
}