| ??? 10/07/06 07:04 Read: times |
#125952 - Thanks for your sugestion Responding to: ???'s previous message |
A got reply from Atmel Center in USA:
Hello Zuhri, One possibility to your problem is that a voltage spike is forcing your system to reset. You may try to place a zener or schottky from the output of the voltage regulator to the Vcc pins of the AT89C2051. The spike may your system to reset after initial startup. If possible, please send the schematic of your system if you need further assistance. Regards, Atmel 8051 Microcontroller Apps USA I will try one by one, so I don't believe to 78L05 output is pure 5V DC. I use plastic box for case. As u know,to stop engine I use relay 5V near with my mcu, relay output used to connect/disconnect motorbike CDI with 200V. I am sure this is the source of problem.........impossible to put relay very far from my MCU, I am thinking about space, motorbike alarm should be small and simple.... |
| Topic | Author | Date |
| How to remove noise from motorbike ignition ? | 01/01/70 00:00 | |
| How do you know it's an EMC problem? | 01/01/70 00:00 | |
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| Steel Box | 01/01/70 00:00 | |
| Thanks for your sugestion | 01/01/70 00:00 | |
| Some more details needed | 01/01/70 00:00 | |
| Its pretty standard | 01/01/70 00:00 | |
| m or u | 01/01/70 00:00 | |
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