experiment_picosdr
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| experiment_picosdr [2016/03/22 16:56] – [Setup with GRC] lbeseme | experiment_picosdr [2016/03/22 18:15] (current) – [Setup with GRC] lbeseme | ||
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| * **RX Gain Control** -> This is to select who controls the RX Gain between the Host and the FPGA. Select Host. | * **RX Gain Control** -> This is to select who controls the RX Gain between the Host and the FPGA. Select Host. | ||
| * **PLL/CPLD Control** -> This is to select who controls the PLL/CPLD(io expanders) between the Host and the FPGA. Select Host. | * **PLL/CPLD Control** -> This is to select who controls the PLL/CPLD(io expanders) between the Host and the FPGA. Select Host. | ||
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| + | #### Custom registers | ||
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| + | As it is explained before, we have to set 3 custom registers in order to make the bitstream work properly. | ||
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| + | The block Custom Register has 5 parameters to set : | ||
| + | * **Target Id** -> This correspond to the ID of the corresponding Carrier Perseus Board block. | ||
| + | * **Block priority** -> Used to init custom registers after RX/TX paths. | ||
| + | * **Register Index** -> The index of the custom register, from 0 to 31. | ||
| + | * **Register Value** -> The value that is written initially. This can also be updated in real-time using a variable. | ||
| + | * **Update Rate** -> How often to update the register. This value is in Hertz. | ||
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| + | In our case, register 4 must be set to 0 (async mode), register 3 to 0 with a constant source block feeding a 1 in the input port, and register 1 to 6. | ||
| ## Setup with python project | ## Setup with python project | ||
experiment_picosdr.txt · Last modified: 2016/03/22 18:15 by lbeseme