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2014-11-18i2c_device_addr as outputPaul Selkirk
2014-09-11correct size of I2C FSM state valuesPaul Selkirk
When adding new I2C states, I neglected to update the size of all the state parameter values, so e.g. I2C_WAITSTOP = 14'b1 << 15; This overflows to 0, which manifests as the I2C bus hanging when asked to access an unsupported device address.
2014-09-03fix i2c read buffer overrunPaul Selkirk
If a client requests data beyond the end of the coretest response, i2c_core could wait forever for txd_syn to be asserted, locking up the system. The current solution is to assume that data will be available by the time the client sends the READ_CMD and then issues the i2c read request; if no data is available, i2c_core returns 0x00. Given the relative speeds of the i2c bus and the FPGA, this seems justifiable, but it could use more scrutiny.
2014-08-28initial commit of I2C code for coretestPaul Selkirk