Един въпрос към колегите с ICD2
Когато се опитам да прогамирам чип със следната конфигурация "int MCLR + int RC oscillator" MPLABa ми дава следното предупреждение:
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| Цитат: ICDWarn0033: You have selected Internal MCLR and Internal Oscillator in your configuration settings. If your code makes use of port pins that correspond to Clock and Data pins in programming mode, you may not be able to reprogram your device. See on-line help for this warning for more information. (OK/Cancel) When Internal MCLR is used with MPLAB ICD 2 for programming, both Vpp and Vdd are powered together, and then Vpp is pulled high to Vihh to enter programming mode. This means that your code will be running before Vpp goes to Vihh. If that code makes use of port pins that correspond to Clock and Data pins in programming mode, there is a chance their values may not be 0, as necessary to enter programming mode. Therefore, the device could not be reprogrammed. Work-Around When External MCLR is used, this is not a problem, as Vpp can go directly to Vihh. Also, if External Oscillator is used, the external oscillator can be kept from running, thus keeping the code from running, until Vpp is at Vihh. | |
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Как си го превеждате "
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| Цитат: Therefore, the device could not be reprogrammed. | |
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За сведение съм закачил на Clock and Data pins изводите за управление на динамична индикация която се опреснява на около 4мс. Много по-кратко от времето за програмирване на ПИКа
. А да използвам IC-Prog. Но с какъв програматор. В момента си имам само ICD2.