ʹDOSϵͳ8086ݵPCػߵƬͨCH375дU̻ƶӲ̣
ʹCH375DOS豸򣬽U̷ΪӲ̣DOSлһ߼̣ͨḌ
ʹ÷ͨӲ̺͵̼RAMڴ̣÷֧U̴ȲΣ㽻ݡ

ӲҪ󣺼8086CPUCH375CPU֮ӷʽκһ֣
ڷʽU̲忨磺PCI忨ISA忨PC104ӿڰȡ
    ŵ㣺ٶȿ죨Լÿ200K500KֽڣЧʸߣԴ5VԴ֧U̴ȲΡ
    ȱ㣺߶࣬װȴڰ帴ӡ
ڷʽU̽ӿڰ壬磺RS232ڰ塢TTLڰȡ
    ŵ㣺Ӳӷ㣬֧U̴ȲΣ֧ڰӲȲΡ
    ȱ㣺ٶԼÿ9K10KֽڣҪ⹩5VԴδԴ磩
ߺӿṩְ忨ƷPCI忨ISA忨PC104ӿڰ塢RS232ڰ塢TTLڰ塣

;ص㣺
  1ڼ빤ػ/Ƕʽϵͳ֮ʵʱؽݡ
  2ڱݹػ/ǶʽϵͳеҪݡ
  3ʹͨõỤ͵ײɹޡ
  4֧DOS 3.X7.X汾֧WINDOWS 3.XWINDOWS 95/98/MEȲϵͳ
  5ֲ֧ϵͳֵ֧ļϵͳDOS 7.X֧FAT12/FAT16/FAT32
  6ֻҪһļCH375DOS.SYSС5KغֻҪRAMڴԼ4K
  7ֻӦóдUʱʱӰԭDOSϵͳػС
  8֧U̴ȲΣʹãUֻ̿Ҫʱϡ
  9ִ֧ȲΣʹãڰ屾U̶ֻҪʱӵڡ
  10ڷʽչROMִ֧UϵͳԲDOS
  11ͳɱƷֻҪʮԪҡ
  12ʹDOSϵͳôԲοCH375UļӳAPIá
  13򻯲ֻҪһַƬѡһCH375оƬļС3K

Ӳ·ľ˵

1ӣѯʽ
   ʹòѯʽCH375жϣ·ԲοCH375EDMӲI/OֱַΪ
     I/Oַ + 0 ΪCH375ݶ˿ڣɶɶ
     I/Oַ + 1 ΪCH375˿ڣֻд
     I/Oַ + 2 ΪCH375״̬˿ڣֻλ0ΪCH375INT#״̬ڲѯжϡ
   CH375ӵISA߻PC104ߣôҪָCH375I/OַҲI/O˿ڣ
     οPC104ISA.PDFеԭͼӦISAPC104ߣͼеROMоƬU4ǿѡġ
     ͼI/OַΪ260HȻʹI/Oַͼ27C256ѡִ֧U
   CH375ͨPCIоƬCH365ӵPCIߣôԶȡI/Oַָ
     οPCI.PDFеԭͼ

1.X 򻯵ĲӣڲĴѯʽ
   򻯲ֻ֧CH375ACH375BоƬ(֧CH375SоƬ)Ҫ״̬˿ڣI/Oַ+2
   ڵ·ϣֻҪΪCH375ṩƬѡźCS#RD#дWR#ַA0D7-D0
   ּ򻯵ĲУʹNO_INTERĿ¼µCH375DOS.SYSļС
   ͨѯCH375ACH375BڲĴѯоƬINT#ϵĵ͵ƽжϡ

   CH375BоƬʹü򻯵ĲӣҪ״̬˿ڣI/Oַ+2INT#

2ӣжϷʽ飺ʹòѯʽ
   ʹӲжϷʽCH375жϣCH375INT#ӵжˣ
   ע⣬CH375INT#ǵ͵ƽЧԶISAPC104Ҫȷжϡ
   ֧жϺţ֧I/Oַñ׼ĲӷʽԲοCH375оƬֲᣬ
   CH375CS#I/Oַ·͵ƽЧƬѡźţӲI/OֱַΪ
     I/Oַ + 0 ΪCH375ݶ˿ڣɶɶ
     I/Oַ + 1 ΪCH375˿ڣֻд
     οISA_INT.PDFеԭͼ

3ӣTTLƽ
   ڱ16C550ҿԽֹFIFOںŲޣΪTTLƽ
   ʹòѯʽCH375жϣCH375ڴڷʽ
     CH375RXDŽĳڵTXDCH375TXDŽĳڵRXD
     CH375RSTIŽĳڵRTS#CH375INT#ŽĳڵCTS#
   ڸλCH375оƬ9600bpsͨѶһΣȻ˫л115200bpsͨѶ
   οSERIAL.PDFеԭͼȥTTL/RS232ƽתоƬU2źֱ

4ӣRS232ƽ
   ͬϣڵΪRS232ƽ
   CH375RXDRSTITXDINT#ҲTTLRS232ƽת
   οSERIAL.PDFеԭͼͼU2еƽתעͼU2δ

DOSľ˵
  ֻҪ CH375DOS.SYS ļƵPCػӲ̻У
  Ȼ޸DOSļ CONFIG.SYS ûдļEDIT߼±½

  DOSļCONFIG.SYSмһУCH375DOS
      DEVICE = CH375DOS.SYS   @nnnn  #rr  %mm
  CH375DOS.SYSڸĿ¼£ôӦָĿ¼ȫ·˵
  1nnnnʮƱʾI/OַĬΪ0nnnnΪ0ôԶȡI/Oַ
     PCIӦ0ISAPC104ԼڣӦָI/O˵ַ
  2rrʮƱʾжϺţĬΪ0rrΪ0ôʹòѯʽʹжϷʽ
     rrΪ9192ô⺬壬ָжϺţָʹôӷʽ
     rrΪ91˵Ǿ̬ӣDOSʱʧܣô˳
     rrΪ92˵Ƕ̬ӣʹDOSʱʧܣҲ˳ʱ׼ӡ
  3mmΪI/OٶȣЧֵ0255ֵԽСдٶԽ죬ĬΪ3ٹػΪ2

  ISAPC104壬ѯʽI/OַΪ2A0Hô    DEVICE = CH375DOS.SYS  @2A0
  CH365ʵֵPCIѯʽô               DEVICE = CH375DOS.SYS
  8086ٹػѯʽI/OַΪ320Hô    DEVICE = CH375DOS.SYS  @320  %2
  ISAPC104壬жIRQ5I/OַΪ260Hô    DEVICE = CH375DOS.SYS  @260  #5
  ͨ1̬ӣҲǴӲʼţô  DEVICE = CH375DOS.SYS  @3F8  #91
  ͨ2̬ӣִ֧ӲȲΣô  DEVICE = CH375DOS.SYS  @2F8  #92
  ʵ1ĳ CONFIG.SYS ļʵݣʹü±򿪲鿴½
        DEVICE = C:\DOS\HIMEM.SYS
        DEVICE = C:\DOS\RAMDRIVE.SYS  1024
        DEVICE = C:\WCH\CH375DOS.SYS  @3F8  #92  %1
  ʵ2ĳ CONFIG.SYS ļʵݣʹü±򿪲鿴½
        DEVICE = C:\CH375DOS.SYS  @260  %2
        DEVICE = C:\DOS\HIMEM.SYS

  CH375DOS󣬽ʾ汾ϢԼӲϢ
      CH375: I/O address = 0260H, interrupt = 00, add disk D:
  е0260HûCONFIG.SYSļָI/OַжϺ00˵ǲѯʽ
  еDΪ̷ѾḌôU̵̷ͿEԴơ
  U̵ʹȫͨӲ̼̣ҪU֧̿ȲΣʹùУ
  U̿԰γ߸һỤǲдڼγܻᶪʧU̡
  Ṵγ󣬶ԭ̷ʼշشֱһU̲룬䴦Ч̡

  DOSӦóԲοCH375CHK.CͨI/OѯUǷӣԼ֪U̷ȡ
  ΪģA̻ḄʹDOSϵͳSUBST磬UḌôִDOS
      SUBST   A:   D:\
  ʹAʵָḌӶӦó̵ļԣA̻D̶ʵʶӦU̡

  ʱĴϢУ
      CH375: I/O data error
        ˵I/OݲԴ󣬿CH375󣬻ǵַ
      CH375: interrupt timeout
        ˵жϳʱߴڳʱпCH375INT#жŵ
      CH375: disk not found
        ˵DOSCH375ʱUûв룬ֻʾʱUδ룬Ӱʹ
      CH375: error boot sector
        ˵DOSCH375ʱU޷ȡU𻵻ֵ߲֧USB豸
      CH375: wait serial
        ˵ָжϺ92ʹö̬ӣҴʱûм⵽Ӳ
      CH375A only: parameter error
        ˵ʹNO_INTERĿ¼е򣬸ֻ֧CH375ACH375BоƬֲֻ֧ڲѯ
