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Pic 16f877a
Khi viet code cho pic 16f877a trong ccs no bao loi undefine portb va undefine trisb khong biet tai sao? xin cac ban chi giup! Va neu viet digitalwrite thi viet trong phan mem nao? Cam on vi may khong cai tieng viet nen thanh that cin loi vi khong co dau, cam on
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