Commit 46e0f6dc authored by Committed by Dimitris Lampridis
wb_i2c_bridge: Fix error in state-machine
The main state machine had an error whereby the wb_cyc and wb_stb outputs were not assigned in the IDLE state. This manifested itself as follows (output from telnet console): %> writereg 1 100 0 # read to illegal address Not acknowledged! %> readreg 1 4 # read from legal address returns NACK Not acknowledged %> readreg 1 4 # next read from legal address returns right data Read data: 01234567 The bug was because the first writereg started a WB transfer from an unexisting address, threw an error and returned to IDLE without releasing the wb_cyc and wb_stb outputs in the process. This meant that on the readreg command, the WB write access would still be in progress and only on the readreg command, an error would clear the wb_cyc and wb_stb, which released the transfer. The error has been fixed by placing the clearing of wb_cyc and wb_stb in the IDLE state.
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