rename feature "HAVE_STMOPCODE_TUNNELCMD" into "HAVE_DOSPM_TUNNELCMD" (since I forgot...

[pub/USBaspLoader.git] / firmware / bootloaderconfig.h

diff --git a/firmware/bootloaderconfig.h b/firmware/bootloaderconfig.h
index 9525aad..f6109bb 100644 (file)
--- a/firmware/bootloaderconfig.h
+++ b/firmware/bootloaderconfig.h
@@ -95,12 +95,45 @@ these macros are defined, the boot loader usees them.
 
 #define HAVE_BLB11_SOFTW_BACKDOOR    1
 /*
 
 #define HAVE_BLB11_SOFTW_BACKDOOR    1
 /*

- * When "HAVE_BLB11_SOFTW_LOCKBIT" is enabled, this backdor will allow writing
+ * When "HAVE_BLB11_SOFTW_LOCKBIT" is enabled, this backdoor will allow writing

  * to the BLS while JUMPER stays low. (keeps be pressed)
  * If JUMPER is released (and after a short debouncing period) repressing it
  * will have NO affect on disabling the writelock.
  */
 
  * to the BLS while JUMPER stays low. (keeps be pressed)
  * If JUMPER is released (and after a short debouncing period) repressing it
  * will have NO affect on disabling the writelock.
  */
 

+#define HAVE_DOSPM_TUNNELCMD       1
+/*
+ * When enabled, "HAVE_DOSPM_TUNNELCMD" will implement an PROGMEM ARRAY 
+ * with up to 12 opcodes within BLS.
+ * This array will be called "bootloader__do_spm", and implements the 
+ * "do_spm" subroutine from atmels "Instruction Set Manual" Rev.0856I, page 140.
+ * If additionally "HAVE_BLB11_SOFTW_BACKDOOR" is enabled, the array will just
+ * contain "NOP()" instructions, since other code can be flashed into via
+ * backdoor.
+ * 
+do_spm:
+;input:        spmcrval determines SPM action
+;disable interrupts if enabled, store status
+;temp1 will be register:       r7
+;temp2 will be register:       r8
+;spmcrval will be register:    r9
+
+in     temp2, SREG     ; --> has to be done before calling
+cli                    ; --> has to be done before calling
+                       ;check for previous SPM complete
+wait:
+in     temp1, SPMCR
+sbrc   temp1, SPMEN
+rjmp   wait
+                       ;SPM timed sequence
+out    SPMCR, spmcrval
+spm
+                       ;restore SREG (to enable interrupts if originally enabled)
+out    SREG, temp2
+ret
+ * 
+ */
+

 #define HAVE_EEPROM_PAGED_ACCESS    1
 /* 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
 #define HAVE_EEPROM_PAGED_ACCESS    1
 /* 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