TB025 데이터 시트보기 (PDF) - Microchip Technology
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TB025 Datasheet PDF : 8 Pages
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TB025
FIGURE 2: FLOWCHART
Download Code
1
Get a single byte
GetByte
No
Character = :?
Yes
Read ByteCount and
store in LineChecksum
Divide by 2 to
get # of words
Read AddrH and
add to LineChecksum
2
No
RecType = 1?
1
Yes
Read Checksum and
add to LineChecksum
Result = 0?
Yes
No
Return with W = 0
Return with W = 1
Read AddrL and
add to LineChecksum
Read RecType and
add to LineChecksum
No
RReecocrTdytpyepe==0?0?
Yes
Yes
ByteCount = 0?
No
Read DataH and
add to LineChecksum
Return with W = FFh
2
Return with W = FFh
Read Checksum and
add to LineChecksum
3
Move AddrH:AddrL
into EEADRH:EEADR
Move HexDataH:HexDataL
into EEDATH:EEDATA
Set EEPGD and WREN bits
Write 55h to EECON2
Write AAh to EECON2
Set WR bit
Wait for EE Write complete
Set RD bit
No
EEDATH = HexDataH?
Yes
No
EEDATA = HexDataL?
Yes
Continue with program
Read DataL and
add to LineChecksum
3
Decrement ByteCount
Yes
Result = 0?
1
No
Return with W = 1
© 1998 Microchip Technology Inc.
DS91025A-page 7
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