Castro Lisa Boot ROM Manual V1.0

USA BOOT ROM MANUAL VERSICW 1.0 Rieh Castro 20 June 1983 Init Exception Vectors lnit Interrupt vectors Init .l.mp Tables ""'11 Handler Check ~ for warm or COid start (126) Warm - Set few "1'1l.J Colder - Check Mt-'1U (127) Set contrast, clear errors set some~ Tum Contrast off INlTl Start Olalp)StlCS Pass Read/Write test of MVllJ registers Pass AOOress test of MMJ registers Pass Pass setup r+tJ contexts 1.2.-3 and flag errors ln memory Pass Fail Flag errors in memory size memory, assume 128K increments, Cheek for low Pass Fail Check 1f IIO board there Size memory, asst.me 128K increments, Check for high Set M"1l.J according to addresses found Test first 2K of memory Pass save current tnformatlon ln low memory Initialize exception vectors in low memory Parallel Port VIA tests see lf Timer 1 ts tnere Pass see tf can access other register Pass Do test of timer register Pass Fail Fail Try access to sec Pass Test memory to be used for screen Pass TSTCt-1<. . Fail set fall flag, get new screen area If inverse vldeO, set last bits for no retrace Une Draw deSktop, CPU RQIV1 rev, set contrast to default Test of Keyboard VIA Test tlmer register Pass TSTCl-tK Enable COPS Pass Fail TSTCHK SCCll COF>S for proper reset cOdes Figure If Keyboard & mouse connected Pass TSTCl-t< Video Circuitry test Verify VTIR signal Pass Pass TSTCHK Parity Circuitry test, test 1 address by writing wrong part ty and then wrt Ung w1 th normal part ty Pass TSTCH< Full memory test wlpartty enabled Check if Warmstart or not Write/Read pattern test. Address test as second scan Pass Feil Address Uniqueness Test PlngPong Memory .Test Pass Fail TSTct-iK Pass RS232 / sec tests cnannel A interrupt vector r Pass fail TSTCH< Channel B internal loopback test Pass Fail TSTCHK I Test of disk interface Display ROM l.D. cnect< Of DSKDIAG bit Get disk ROM test status from shared memory Fail Poss --~~~~~---~~~~~~~~--TSTCt-K wrtte/Reaci test of 1 Iocatlon ln sharee2 memory Pass Issue dlsaole command to disk R~ Fail Pass TSTCH< Scan keyboard COPS for user commands Read COPS for current date and time Pass TSTCH< Read all expansion slots for I.D.s On cards with status programs, execute them. TSTCHK Clear desktop My fatal errors encolJ'ltered? Ho If...Q.~...~~~ ...~!!Q!!....~...~~~P.~~.Y..Jl Be 6t to Boot ROfV1 Monitor see If an Exception error occurrea No to Boot ROM Monitor No clOOI< data or RS232 error then & to Boot RQtv1 Mon tor See if keybOard error occurred No see if memory error occurred No M.Jst be 110 expaislon slot error If mouse unplugged then flag user. lnlt cursor and mouse. Alternate Boot device? No Boot menu aSkea for? No Yes Get boot device frcm parameter memory Invalid Yes Keyboard overrides all others Is there a bootable test card? Yes Is bootable card an AppleNet Gard? Ho Yes Boot from Applef\Jet Bootable Test card? Mo Ves Boot from Test card No override of default If Twiggy (871) ooo…