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December 11, 2015 18:09
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| from pylibftdi import BitBangDevice | |
| from dds import AD9859, BitBangInterface | |
| crystal = 25e6 | |
| mul = 16 | |
| fclk = mul * crystal | |
| pins = { "sdio":4, "sclk":0, "ioupdate":2, "iosync":6, "reset":7 } | |
| conf = { "pins":pins, "fclk":400e6, "refclk_multiplier":16, "vco_range":1 } | |
| freq = 10e6 | |
| with BitBangDevice(direction = 0xff) as dev: | |
| dev.baudrate = 115200 | |
| bb = BitBangInterface(dev) | |
| dds = AD9859(bb, conf) | |
| dds.reset() | |
| dds.setup() | |
| dds.set_frequency(freq) | |
| dds.ioupdate() |
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