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Ok i see.. I understand it now, my idea was wrong. I will start from beginning. Sorry for misunderstanding im beginner in these things. Thanks again for leading me right way.
My idea of hw connecion is arduino clk -> MCLKIN on AD7401 and MOSI <- MDAT. I know its not made for spi communication but clock frequency for AD7401 is 5-20 MHz and if i will just toggle output pin on arduino instead spi clk frequency would be much lower.
This servo drive i have is not made by me i just want to use it in my project. I use power board for h-bridge and i want to read current also. So im trying to get work this modulator with arduino because its onboard. Do you think its possible to read AD7401 with arduino/mega2560 or its waste of...
Hi, this schematic is one of boards from servo drive. I want to use this power board but i want to control it with arduino board. MDAT originaly goes to DSP 2407. I dont have this board with me. SINC filter is hw or sw?
I changed calculation to i_out = ((lowByte + highByte) * 256);
but now i have values like for max input voltage.
highByte: 203 lowByte: 44 i_out: 63232
highByte: 178 lowByte: 203 i_out: 32000
highByte: 44 lowByte: 178 i_out: 56832
highByte: 203 lowByte: 44 i_out: 63232...
Hi,
Im use arduino mega to read adc 16 bit AD7401 https://www.analog.com/media/en/technical-documentation/data-sheets/AD7401.pdf
I use it for measure voltage drop on shunt resistor for measuring current.
In datasheet -200mV is 12288 and +200mV 53248. So 0V should be 20480 but values i read are...
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