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Added new JTAG_ENABLE() macro for the AVR8 architecture. Fixed the JTAG_DISABLE() macro clearing all other bits in MCUSR when called.

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Moved the XPLAIN board specific bootloader entry condition code to the Application_Jump_Check() function of the DFU bootloader, added support for the original XPLAIN board to the CDC class bootloader.
This commit is contained in:
Dean Camera 2012-06-09 13:00:56 +00:00
parent 7abaafb3ca
commit cd0bd7bf90
4 changed files with 64 additions and 19 deletions
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20
LUFA/Common/ArchitectureSpecific.h
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@ -65,6 +65,24 @@
/* Macros: */
#if (ARCH == ARCH_AVR8) || (ARCH == ARCH_XMEGA) || defined(__DOXYGEN__)
#if (ARCH == ARCH_AVR8) || defined(__DOXYGEN__)
/** Re-enables the AVR's JTAG bus in software, until a system reset. This will re-enable JTAG debugging
* interface after is has been disbled in software via \ref JTAG_DISABLE().
*
* \note This macro is not available for all architectures.
*/
#define JTAG_ENABLE() MACROS{ \
__asm__ __volatile__ ( \
"in __tmp_reg__,__SREG__" "\n\t" \
"cli" "\n\t" \
"out %1, %0" "\n\t" \
"out __SREG__, __tmp_reg__" "\n\t" \
"out %1, %0" "\n\t" \
: \
: "r" (MCUCR & ~(1 << JTD)), \
"M" (_SFR_IO_ADDR(MCUCR)) \
: "r0"); \
}MACROE
/** Disables the AVR's JTAG bus in software, until a system reset. This will override the current JTAG
* status as set by the JTAGEN fuse, disabling JTAG debugging and reverting the JTAG pins back to GPIO
* mode.
@ -79,7 +97,7 @@
"out __SREG__, __tmp_reg__" "\n\t" \
"out %1, %0" "\n\t" \
: \
: "r" (1 << JTD), \
: "r" (MCUCR | (1 << JTD)), \
"M" (_SFR_IO_ADDR(MCUCR)) \
: "r0"); \
}MACROE