4 Commits

Author	SHA1	Message	Date
Byron Lathi	264263b0d9	Change "state" to "tx_state" etc.	2022-03-14 15:10:59 -05:00
Byron Lathi	b2344d986e	Add UART interrupts ... Currently an interrupt is triggered any time there is any activity on the UART_RXD line, but later it will only trigger once there is data ready to be read.	2022-03-14 14:57:45 -05:00
Byron Lathi	f8da9206d9	Refactor uart.sv to better allow cpu control ... Added new signal tx_flag, which indicates whether the transmitter is ready for new data. Added status register, which when read will return the tx_flag bit, as well as others that can be implemented. Added new state IDLE, which resets the TX flag and allows new data to be written. Added code to allow for different baud rates, though it is still fixed currently.	2022-03-14 00:00:55 -05:00
Byron Lathi	e063e9f6a3	Add basic UART device ... So far the device only transmits the ASCII set on repeat, but will become fully featured later.	2022-03-13 19:42:41 -05:00