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Anyone knows if it is possible to control the timing on I2C via the Linux i2c kernel driver (for the Cyclone V HPS)? Can SDA setup and hold timing be adjusted from userspace?
I have a problem using an external I2C device (which is connected through the FPGA fabric). Investigation of the signals shows that the SDA and SCL edges are toggling very close to each others. By physically placing your finger on the SDA line actually makes it work though, which leads me to suspect SDA hold violation.Link Copied
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