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- SCM
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[WORD]
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- Update:
- 2012-11-26
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Description: Effective, that allowed RXD send data, meanwhile, is allowed from TXD at output shift pulse. The first frame (8) data sending finished, the control signal are restored the original state, only keep a high level, TI application state interruption. The first 74HC164 put the first frame data parallel output, LED1 showed that the data (sending timing as figure2shows). Then, use the software will TI reset, send the second frame data. The second frame data sending finished, LED1 shows the second frame data, the first frame data 74HC164 serial input to the second, LED2 shows the first frame data. By analogy, until the data in all data sending out. Should pay attention to, after all, data sent the first frame data on the final LED display. Because most TXD end can drive eight TTL door when more than 8 LED display, we adopt 74HC244 chip driver. Each 74HC244 eight road drive, every way can drive eight LED, namely every add a 74HC244, can increase the 64 LED drivers.
In order to save the tube
To Search:
- [TRF7960] - about msp430 and trf7960
File list (Check if you may need any files):
RXD TXD.doc
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