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hi,6qbt,你好。 2。06 版与3。00版,我写入试过开机成功。。。。这两版本有什么区别???
还有印度ham朋友的这电路,与你以前提供的dds有什么区别(好像你以前提供的也带波段切的?)请回复
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main changes:
1. rit now displays seperately.
2. memory saves freq with mode ( ie lsb/usb..).
3. code optimised for speed.
4. saves all last worked settings( in ver 2.0 freq + mode).
specifications
1.range 0 to 70 mhz by 1 hz step.
2. freq setting in 1, 10, 100hz, 1, 10, 100khz, 1, 10 mhz by using a low cost mechanical encoder with a variable tuning rate.
3. 2 rows x 16 charecter lcd display.
4. a 4x3 keypad used for easy freq entry.
5. if, cw, ssb offsets settings when used with transceiver/ receiver.
6. software calibration to wwv or equivalent.
7. two vfos and split freq operation.
8. 19 user memories, memories freq + mode (ie lsb/usb..)
9. all settings are held in eeprom and are permenant ( but user can change it any time ).
10. 4 band selection and 4 mode selection outputs.
11. if you are below if freq, then turn clockwise decreses dds out put freq but increses the display freq.
12. rit operation.
引自原作者原文............
我原来的做的dds没有波段控制功能,而这位印度朋友的电路和程序有四个波段控制功能,功能更适用,我email请教过原作者,不久他还会控制更多的波段,请耐心等待!