Macintosh-HW/tashtwenty
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Merge branch 'main' of github.com:demik/tashtwenty

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demik 2022-06-06 19:24:01 +02:00
commit e399185544
1 changed files with 10 additions and 15 deletions
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25
firmware1704/firmware1704.asm
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@ -467,8 +467,12 @@ ErrorHandler
bcf INTCON,GIE ;Make sure interrupts are off bcf INTCON,GIE ;Make sure interrupts are off
movlw B'00110010' ;Tristate RD (this is probably not necessary, movlw B'00110010' ;Tristate RD (this is probably not necessary,
tris 7 ; but.. belt and suspenders) tris 7 ; but.. belt and suspenders)
banksel RC4PPS ;Return RD to be driven by its latch so it's movlb 29 ;Return RD and SCK to be driven by latches and
clrf RC4PPS ; always high (doesn't matter really) clrf RC4PPS ; drive them high; RD doesn't really matter but
clrf RC0PPS ; driving SCK high means that, when using the
movlb 0 ; Adafruit SD level shifter, the activity LED
bsf PORTC,RC4 ; blinks out the error code
bsf PORTC,RC0 ; "
banksel CLCIN0PPS ;Reconfigure CLC1 to pass through !ENBL to the banksel CLCIN0PPS ;Reconfigure CLC1 to pass through !ENBL to the
movlw B'00000101' ; next device in the chain so we don't have movlw B'00000101' ; next device in the chain so we don't have
movwf CLCIN0PPS ; to do this in software movwf CLCIN0PPS ; to do this in software
@ -1166,20 +1170,11 @@ CmdSta1 movlw 0 ; manufacturer word (0x0001)
bra CmdSta1 ; " bra CmdSta1 ; "
CmdSta2 movlw 0xE6 ;Write the device characteristics: mount, read, CmdSta2 movlw 0xE6 ;Write the device characteristics: mount, read,
call WriteByte ; write, icon included, disk in place call WriteByte ; write, icon included, disk in place
moviw 5[FSR0] ;Write the device size which I BELIEVE is moviw 5[FSR0] ;Write the device size
movwf X2 ; really the max sector number (so we have to call WriteByte ; "
moviw 6[FSR0] ; decrement from the partition table) moviw 6[FSR0] ; "
movwf X1 ; TODO look into this and make sure call WriteByte ; "
moviw 7[FSR0] ; " moviw 7[FSR0] ; "
movwf X0 ; "
movlw 0xFF ; "
addwf X0,F ; "
addwfc X1,F ; "
addwfc X2,W ; "
call WriteByte ; "
movf X1,W ; "
call WriteByte ; "
movf X0,W ; "
call WriteByte ; " call WriteByte ; "
movlw 56 ;Write the spare count word, the bad block movlw 56 ;Write the spare count word, the bad block
movwf X0 ; count word, and the manufacturer reserved movwf X0 ; count word, and the manufacturer reserved