diff options
Diffstat (limited to 'bootloader/bootloader-947.asm')
| -rw-r--r-- | bootloader/bootloader-947.asm | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/bootloader/bootloader-947.asm b/bootloader/bootloader-947.asm index 6c24b29..72cee90 100644 --- a/bootloader/bootloader-947.asm +++ b/bootloader/bootloader-947.asm @@ -29,7 +29,6 @@ ;; ------------------------------------- ;; DEFINES (chip/com specific) -#define BOOTPIN PORTC,7 USERVECT EQU H'200' ISRVECT EQU USERVECT + H'4' FLASH_BOUNDARY EQU b'00011111' ; flash write boundary is at 32 bytes boundaries @@ -69,9 +68,7 @@ cnt EQU H'007F' ;; Boot Macro bootmacro macro - ;; btfsc BOOTPIN - ;; goto USERVECT - goto com_init + goto preinit endm ;; for compatibility with older MCUs @@ -86,6 +83,13 @@ bootmacro macro ;; Bootloader init #include "generic-init.inc" +preinit + movlb .3 + bcf ANSELB,ANSB1 + movlb .0 + btfsc PORTB,1 + goto USERVECT + goto com_init ;; ------------------------------------- ;; Bootloader (com specific subroutines and init) #include "com-16f1847-uart.inc" @@ -102,17 +106,7 @@ bootmacro macro ;; ------------------------------------- ;; dummy user code org USERVECT - movlb .1 - movlw b'11111110' - movwf TRISB - movlb .0 -userloop - call com_rx_byte - call com_tx_byte - movlw b'00000001' - xorwf PORTB,f - goto userloop - ;; goto USERVECT + goto USERVECT ;; ------------------------------------- ;; END |