STC micro STC8A8K64D4 Series Reference Manual page 15

STC8A8K64D4 Series Manual
G.3.8 Make/Update U8W/U8W-Mini ..................................................................................................787
G.3.9 U8W/U8W-Mini set through mode (can be used for simulation) ...............................................789
G.3.10 Reference circuit of U8W/U8W-Mini ......................................................................................789
G.4 STC Universal USB to Serial Tool ......................................................................................................791
G.4.1 Appearance of STC Universal USB to Serial Tool ....................................................................791
G.4.2 STC general USB to serial tool layout diagram..........................................................................792
G.4.3 STC Universal USB to Serial Tool Driver Installation ...............................................................793
G.4.4 Use STC universal USB to serial port tool to download program to MCU ................................794
G.4.5 Use STC universal USB to serial port tool to simulate user code .....................................................796
G.5 Application circuit diagram ..................................................................................................................804
G.5.1 U8W tool application reference circuit diagram .........................................................................804
G.5.2 STC Universal USB to Serial Tool Application Reference Circuit Diagram .............................805
Appendix H STC Emulation Instruction Manual ........................................................................................806
H.1 Overview ..............................................................................................................................................806
H.2 Install Keil software .............................................................................................................................807
H.3 Install the emulation driver ..................................................................................................................808
H.4 Serial port emulation directly ............................................................................................................... 811
H.4.1 Make serial port emulation chip ................................................................................................. 811
H.4.2 Serial port emulation settings in Keil software ...........................................................................814
H.4.3 Emulation using serial port in Keil software ..............................................................................816
H.5 USB direct emulation (currently only supported by STC8H8K64U-B version chip) ..........................818
H.5.1 Making a USB emulation chip....................................................................................................818
H.5.2 USB emulation settings in Keil software ....................................................................................822
H.5.3 Emulation using USB in Keil software .......................................................................................824
Appendix I Partial Circuit of RS485 in U8W Download Tool .....................................................................826
Appendix J ISP Download Starts Automatically After Receiving User Command While Running User
Program (no Power-down) .............................................................................................................................827
Appendix K Use STC's IAP series MCU to develop your own ISP program .............................................829
Appendix L The method of resetting the user program to the system area for ISP download (without
power off) 841
Appendix M Example Routine of ISP download for STC8A8K64D4 series MCUs using third-party MCU
847
Appendix N Use a third-party application program to call the STC release project program to download
the ISP of the MCU .........................................................................................................................................855
Appendix O Method for Creating Multi-file Projects in Keil .....................................................................859
Appendix P Handling of Compilation Error in Keil with Interrupt Numbers Greater Than 31 .............863
Appendix Q Electrical Characteristics ..........................................................................................................872
Q.1 Absolute Maximum Rating ..................................................................................................................872
Q.2 DC ELECTRICAL CHARACTERISTICS (3.3V) ..............................................................................872
Q.3 DC ELECTRICAL CHARACTERISTICS (5V) .................................................................................874
Q.4 Internal IRC temperature drift characteristic (reference temperature 25 ℃) .......................................875
Q.5 Low voltage reset threshold voltage (test temperature 25 ℃) .............................................................875
Appendix R Application Considerations ......................................................................................................876
R.1 STC8A8K64D4-64Pin/48Pin series .....................................................................................................876
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