Recommend : Connect the VPP pin with a 104 tile capacitor to the ground and series connect a
Schottky diode on the VDD line,such as 1N5819,SS14 and so on.Connect the positive pole to the
ICSP port board,the negative pole to the side of VDD pin of MCU,which can avoid the VPP pin of
MCU to break down the VDD pin because of the poor connection of GND ground line.
There is another commonsense problem : Relevant pins of MCU must be connected well with ICSP
board,and insert the ICSP board on the programmer then choose corresponding type to read and
write.If to insert the ICSP board in the locking socket first and then connect MCU pin,it is easy to
burn the MCU.
S3F9454 on line read&write connection definition
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