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LDmicro Forum - confusion about pic16f877A

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confusion about pic16f877A (by ibrahimattaka)
Dear sirs
in program settings to choose setting for pic16f877A there are two choices for pic16f877 40-DIP mentioned two times which one is fit for pic16f877A because this is led me to unstable program after installation with k150 pic programmer despite working well with simulator .
thanks
Mon Dec 4 2017, 15:38:16
(no subject) (by Ihor Nehrutsa)
This is different MCU's:
"Microchip PIC16F887 40-PDIP"
"Microchip PIC16F877 40-PDIP"
Mon Dec 4 2017, 16:58:38
confusion about pic16f877A (by ibrahimattaka)
which one is fit for pic16f877A
Mon Dec 4 2017, 17:51:08
(no subject) (by Ihor Nehrutsa)
"Microchip PIC16F877 40-PDIP"
Mon Dec 4 2017, 18:31:03
unexpected result (by ibrahimattaka)
plz help me experts.... to solve this problem.I made a program working OK with simulator but after downloading on the chip it becomes Unstable !!! what I made wrong
Tue Dec 5 2017, 02:14:22, download attachment ATS WORKING ld.rar
(no subject) (by ibrahimattaka)
I designed this circuit which works only when touching the chip with finger is that due to problem In chip or in the circuit I wonder what's the reason
Tue Dec 12 2017, 10:52:12, download attachment unstable.png
(no subject) (by MGP)
You need more decoupling capacitors if you use relays.
Some resistors are too small.
Tue Dec 12 2017, 12:42:35, download attachment Snap308.jpg
(no subject) (by MGP)
Forgotten, a resistor of 10K on pin1 (MLCR) to the Vdd
Tue Dec 12 2017, 12:45:56
(no subject) (by ibrahimattaka)
Thanks Experts for replay .. I love All of you
Tue Dec 12 2017, 23:21:16
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