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[/] [uart16550/] [trunk] - Rev 106

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Rev Log message Author Age Path
106 New directory structure. root 5557d 18h /uart16550/trunk
105 Timeout interrupt should be generated only when there is at least ony
character in the fifo.		 igorm 7126d 19h /trunk
103 Brandl Tobias repaired a bug regarding frame error in receiver when brake is received. tadejm 7283d 13h /trunk
101 Added 2 LSB address generation dependent on select lines and LITLE/BIG endian when UART is in 32-bit mode. tadejm 7311d 15h /trunk
100 Repaired bug in receiver. When stop bit is sampled and next clock RX input was '0', state machine stayed locked until next '1' which cause loosing at least start bit in case of larger difference of bit times between 2 UARTs. tadejm 7311d 16h /trunk
99 Added synchronizer flops for RX input. tadejm 7311d 16h /trunk
98 Added to synchronize RX input to Wishbone clock. tadejm 7311d 16h /trunk
96 Testbench with complete selfchecking. BUG is that THRE status is set at the end of last sent bit when TX FIFO is empty instead only when TX FIFO is empty. This sauses testcases not to finish. tadejm 7367d 00h /trunk
95 Testbench with complete selfchecking. BUG is that THRE status is set at the end of last sent bit when TX FIFO is empty instead only when TX FIFO is empty. This causes testcases not to finish. tadejm 7367d 00h /trunk
94 Testbench with complete selfchecking. BUG is that THRE status is set at the end of last sent bit when TX FIFO is empty instead when only TX FIFO gets empty. This causes testcases not to finish. tadejm 7367d 00h /trunk
93 Testbench with complete selfchecking. BUG is that THRE status is set at the end of last sent bit when TX FIFO is empty instead when only TX FIFO gets empty. This causes testcases not to finish. tadejm 7367d 00h /trunk
92 This is revision 1.4, revision 1.5 was put there by mistake. simons 7480d 17h /trunk
91 Removed files due to new complete testbench. tadejm 7481d 08h /trunk
90 Add Flextronics header avisha 7483d 15h /trunk
89 adjusted comment + define dries 7563d 20h /trunk
88 added clearing the receiver fifo statuses on resets gorban 7626d 10h /trunk
87 This fixes errors in some cases when data is being read and put to the FIFO at the same time. Patch is submitted by Scott Furman. Update is very recommended. gorban 7656d 11h /trunk
86 restored include for uart_defines.v in uart_test.v gorban 7926d 15h /trunk
85 Updated documentation to include latest changes. gorban 7960d 07h /trunk
84 The uart_defines.v file is included again in sources. gorban 7973d 07h /trunk
83 Reverted to include uart_defines.v file in other files again. gorban 7973d 07h /trunk
82 Updated to work with latest core. gorban 7980d 05h /trunk
81 Added lastest additions. gorban 7980d 05h /trunk
80 Remove uart_fifo.v because it is replaced by other 2 files. gorban 7980d 05h /trunk
79 Bug Fixes:
* Possible loss of sync and bad reception of stop bit on slow baud rates fixed.
Problem reported by Kenny.Tung.
* Bad (or lack of ) loopback handling fixed. Reported by Cherry Withers.

Improvements:
* Made FIFO's as general inferrable memory where possible.
So on FPGA they should be inferred as RAM (Distributed RAM on Xilinx).
This saves about 1/3 of the Slice count and reduces P&R and synthesis times.

* Added optional baudrate output (baud_o).
This is identical to BAUDOUT* signal on 16550 chip.
It outputs 16xbit_clock_rate - the divided clock.
It's disabled by default. Define UART_HAS_BAUDRATE_OUTPUT to use.		 gorban 7980d 05h /trunk
75 Endian define added. Big Byte Endian is selected by default. mohor 8133d 11h /trunk
74 tf_overrun signal was disabled since it was not used gorban 8138d 12h /trunk
73 major bug in 32-bit mode that prevented register access fixed. gorban 8145d 12h /trunk
72 UART PHY added. Files are fully operational, working on HW. mohor 8158d 19h /trunk
71 Removed confusing comment gorban 8170d 08h /trunk

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