#ifndef __bootloaderconfig_h_included__
#define __bootloaderconfig_h_included__
+#include <avr/io.h>
/*
General Description:
* feature.
*/
+#define HAVE_SPMINTEREFACE_NORETMAGIC 1
+/*
+ * If sth. went wrong within "bootloader__do_spm" and this macro is ACTIVATED,
+ * then "bootloader__do_spm" will not return the call and loop infinity instead.
+ *
+ * This feature prevents old updaters to do sth. undefined on wrong magic.
+ */
+
/* all boards should use a magic to make it safe to confuse updatefiles :-) */
#define HAVE_SPMINTEREFACE_MAGICVALUE 0
/* If this feature is enabled (value != 0), the configured 32bit value is
* WITH REQUESTING A MAGIC YOU AGREE TO PUBLISHED YOUR DATA SEND WITHIN THE REQUEST
*/
-#define HAVE_EEPROM_PAGED_ACCESS 1
+#ifndef CONFIG_NO__EEPROM_PAGED_ACCESS
+# define HAVE_EEPROM_PAGED_ACCESS 1
+#else
+# define HAVE_EEPROM_PAGED_ACCESS 0
+#endif
/* If HAVE_EEPROM_PAGED_ACCESS is defined to 1, page mode access to EEPROM is
* compiled in. Whether page mode or byte mode access is used by AVRDUDE
* depends on the target device. Page mode is only used if the device supports
* it, e.g. for the ATMega88, 168 etc. You can save quite a bit of memory by
* disabling page mode EEPROM access. Costs ~ 138 bytes.
*/
-#define HAVE_EEPROM_BYTE_ACCESS 1
+
+#ifndef CONFIG_NO__EEPROM_BYTE_ACCESS
+# define HAVE_EEPROM_BYTE_ACCESS 1
+#else
+# define HAVE_EEPROM_BYTE_ACCESS 0
+#endif
/* If HAVE_EEPROM_BYTE_ACCESS is defined to 1, byte mode access to EEPROM is
* compiled in. Byte mode is only used if the device (as identified by its
* signature) does not support page mode for EEPROM. It is required for
*/
#ifndef CONFIG_NO__BOOTLOADER_CAN_EXIT
- #define BOOTLOADER_CAN_EXIT 1
+# define BOOTLOADER_CAN_EXIT 1
#else
- #define BOOTLOADER_CAN_EXIT 0
+# define BOOTLOADER_CAN_EXIT 0
#endif
/* If this macro is defined to 1, the boot loader will exit shortly after the
* programmer closes the connection to the device. Costs extra bytes.
*/
-#define HAVE_CHIP_ERASE 0
+#ifndef CONFIG_NO__CHIP_ERASE
+# define HAVE_CHIP_ERASE 1
+#else
+# define HAVE_CHIP_ERASE 0
+#endif
/* If this macro is defined to 1, the boot loader implements the Chip Erase
* ISP command. Otherwise pages are erased on demand before they are written.
*/
+#ifndef CONFIG_NO__ONDEMAND_PAGEERASE
+# define HAVE_ONDEMAND_PAGEERASE 1
+#else
+# define HAVE_ONDEMAND_PAGEERASE 0
+#endif
+/* Even if "HAVE_CHIP_ERASE" is avtivated - enabling the "HAVE_ONDEMAND_PAGEERASE"-
+ * feature the bootloader will erase pages on demand short before writing new data
+ * to it.
+ * If pages are not erase before reprogram (for example because user call avrdude -D)
+ * then data may become inconsistent since writing only allow to unset bits in the flash.
+ * This feature may prevent this...
+ */
#ifndef CONFIG_NO__NEED_WATCHDOG
- #define NEED_WATCHDOG 1
+# define NEED_WATCHDOG 1
#else
- #define NEED_WATCHDOG 0
+# define NEED_WATCHDOG 0
#endif
/* ATTANTION: This macro MUST BE 1, if the MCU has reset enabled watchdog (WDTON is 0).
* If this macro is defined to 1, the bootloader implements an additional "wdt_disable()"
*/
#ifndef CONFIG_NO__PRECISESLEEP
- #define HAVE_UNPRECISEWAIT 0
+# define HAVE_UNPRECISEWAIT 0
#else
- #define HAVE_UNPRECISEWAIT 1
+# define HAVE_UNPRECISEWAIT 1
#endif
/* This macro enables hand-optimized assembler code
* instead to use _sleep_ms for delaying USB enumeration.
* Therefore it is very small, which saves some PROGMEM bytes!
*/
+#ifndef CONFIG_NO__FLASH_BYTE_READACCESS
+# define HAVE_FLASH_BYTE_READACCESS 1
+#else
+# define HAVE_FLASH_BYTE_READACCESS 0
+#endif
+/* If HAVE_FLASH_BYTE_READACCESS is defined to 1, byte mode access to FLASH is
+ * compiled in. Byte mode sometimes might be used by some programming softwares
+ * (avrdude in terminal mode). Without this feature the device would return "0"
+ * instead the right content of the flash memory.
+ */
+
+#ifdef CONFIG_USE__EXCESSIVE_ASSEMBLER
+# define USE_EXCESSIVE_ASSEMBLER 1
+#else
+# define USE_EXCESSIVE_ASSEMBLER 0
+#endif
+/* This macro enables large codeareas of hand-optimized assembler code.
+ * WARNING:
+ * It will only work properly on devices with <64k of flash memory and SRAM.
+ * Some configuration macros (when changed) may not be applied correctly
+ * (since their behaviour is raced within asm)!
+ * Nevertheless this feature saves lots of memory.
+ */
+
//#define SIGNATURE_BYTES 0x1e, 0x93, 0x07, 0 /* ATMega8 */
/* This macro defines the signature bytes returned by the emulated USBasp to
* the programmer software. They should match the actual device at least in
# define MCUCSR MCUSR
#endif
+/* WARNING:
+ * following commands and macros may not be evaluated properly when 'USE_EXCESSIVE_ASSEMBLER"
+ */
+
static inline void bootLoaderInit(void)
{
PIN_DDR(JUMPER_PORT) = 0;
MCUCSR = 0; /* clear all reset flags for next time */
}
-#if BOOTLOADER_CAN_EXIT
static inline void bootLoaderExit(void)
{
PIN_PORT(JUMPER_PORT) = 0; /* undo bootLoaderInit() changes */
}
-#endif
#define bootLoaderCondition() ((PIN_PIN(JUMPER_PORT) & (1 << PIN(JUMPER_PORT, JUMPER_BIT))) == 0)
projects / pub / USBaspLoader.git / blobdiff