HT1621B.zip example, for beginners to learn, after a slight modification can be done other use.

HT1621B_2
.........\HT1621B
.........\HT1621B.M51
.........\HT1621B.Opt
.........\HT1621B.Uv2
.........\HT1621B.lnp
.........\HT1621B.plg
.........\HT1621B_2
.........\HT1621B_2.M51
.........\HT1621B_2.hex
.........\HT1621B_2.lnp
.........\HT1621B_2.plg
.........\HT1621B_Opt.Bak
.........\HT1621B_Uv2.Bak
.........\STARTUP.A51
.........\STARTUP.LST
.........\STARTUP.OBJ
.........\ht1621b.LST
.........\ht1621b.OBJ
.........\ht1621b.c
.........\main.LST
.........\main.OBJ
.........\main.c
.........\main.h

• We are an exchange download platform that only provides communication channels. The downloaded content comes from the internet. Except for download issues, please Google on your own.
• The downloaded content is provided for members to upload. If it unintentionally infringes on your copyright, please contact us.
• Please use Winrar for decompression tools
• If download fail, Try it againg or Feedback to us.
• If downloaded content did not match the introduction, Feedback to us，Confirm and will be refund.
• Before downloading, you can inquire through the uploaded person information

Nothing．