差别
这里会显示出您选择的修订版和当前版本之间的差别。
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m2k_usb_design [2022/11/01 22:41] gongyu 创建 |
m2k_usb_design [2022/11/03 16:13] (当前版本) gongyu |
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| ## ADALM2000的USB控制 | ## ADALM2000的USB控制 | ||
| + | {{ :m2kusbsch.png |}}<WRAP centeralign> USB部分电路原理图 </WRAP> | ||
| The USB interface performs two tasks: | The USB interface performs two tasks: | ||
| * **Programming the FPGA:** There is no non-volatile FPGA configuration memory on the Analog Discovery. The WaveForms software identifies the connected device and downloads an appropriate .bit file at power-up, via a Digilent USB-JTAG interface. Adept run-time is used for low level protocols. | * **Programming the FPGA:** There is no non-volatile FPGA configuration memory on the Analog Discovery. The WaveForms software identifies the connected device and downloads an appropriate .bit file at power-up, via a Digilent USB-JTAG interface. Adept run-time is used for low level protocols. | ||
| * **Data exchange:** All instrument configuration data, acquired data and status information is handled via a Digilent synchronous parallel bus and USB interface. Speed up to 20MB/sec. is reached, depending on USB port type and load as well as PC performance. | * **Data exchange:** All instrument configuration data, acquired data and status information is handled via a Digilent synchronous parallel bus and USB interface. Speed up to 20MB/sec. is reached, depending on USB port type and load as well as PC performance. | ||