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According to Andre Lange, the Hades has the DTR/RTS lines exchanged on 

the 68901 UART-port due to a PCB error. Take care of this.
This commit is contained in:
leo 1997-08-27 06:59:19 +00:00
parent a905a75ff7
commit c9f11609e3
1 changed files with 18 additions and 4 deletions
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22
sys/arch/atari/dev/ser.c
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@ -1,4 +1,4 @@
/* $NetBSD: ser.c,v 1.1 1997/05/25 12:41:57 leo Exp $ */ /* $NetBSD: ser.c,v 1.2 1997/08/27 06:59:19 leo Exp $ */
/*- /*-
* Copyright (c) 1997 The NetBSD Foundation, Inc. * Copyright (c) 1997 The NetBSD Foundation, Inc.
@ -792,8 +792,16 @@ printf("loadchannelregs: mf_imrb: %x sc_imrb: %x\n", (u_int)MFP->mf_imrb,
single_inst_bset_b(MFP->mf_tcdcr, (sc->sc_ospeed >> 8) & 0x0f); single_inst_bset_b(MFP->mf_tcdcr, (sc->sc_ospeed >> 8) & 0x0f);
sc->sc_mcr_active = sc->sc_mcr; sc->sc_mcr_active = sc->sc_mcr;
ym2149_rts(!(sc->sc_mcr_active & MCR_RTS));
ym2149_dtr(!(sc->sc_mcr_active & MCR_DTR)); if (machineid & ATARI_HADES) {
/* PCB fault, wires exchanged..... */
ym2149_rts(!(sc->sc_mcr_active & MCR_DTR));
ym2149_dtr(!(sc->sc_mcr_active & MCR_RTS));
}
else {
ym2149_rts(!(sc->sc_mcr_active & MCR_RTS));
ym2149_dtr(!(sc->sc_mcr_active & MCR_DTR));
}
single_inst_bset_b(MFP->mf_imra, sc->sc_imra); single_inst_bset_b(MFP->mf_imra, sc->sc_imra);
single_inst_bset_b(MFP->mf_imrb, sc->sc_imrb); single_inst_bset_b(MFP->mf_imrb, sc->sc_imrb);
@ -850,7 +858,13 @@ ser_hwiflow(sc, block)
SET(sc->sc_mcr, sc->sc_mcr_rts); SET(sc->sc_mcr, sc->sc_mcr_rts);
SET(sc->sc_mcr_active, sc->sc_mcr_rts); SET(sc->sc_mcr_active, sc->sc_mcr_rts);
} }
ym2149_rts(sc->sc_mcr_active & MCR_RTS); if (machineid & ATARI_HADES) {
/* PCB fault, wires exchanged..... */
ym2149_dtr(sc->sc_mcr_active & MCR_RTS);
}
else {
ym2149_rts(sc->sc_mcr_active & MCR_RTS);
}
} }
void void