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

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Rev Log message Author Age Path
106 New directory structure. root 5538d 12h /uart16550/trunk/
105 Timeout interrupt should be generated only when there is at least ony
character in the fifo.		 igorm 7107d 13h /trunk/
103 Brandl Tobias repaired a bug regarding frame error in receiver when brake is received. tadejm 7264d 08h /trunk/
101 Added 2 LSB address generation dependent on select lines and LITLE/BIG endian when UART is in 32-bit mode. tadejm 7292d 10h /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 7292d 11h /trunk/
99 Added synchronizer flops for RX input. tadejm 7292d 11h /trunk/
98 Added to synchronize RX input to Wishbone clock. tadejm 7292d 11h /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 7347d 18h /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 7347d 18h /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 7347d 18h /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 7347d 19h /trunk/
92 This is revision 1.4, revision 1.5 was put there by mistake. simons 7461d 12h /trunk/
91 Removed files due to new complete testbench. tadejm 7462d 03h /trunk/
90 Add Flextronics header avisha 7464d 10h /trunk/
89 adjusted comment + define dries 7544d 15h /trunk/
88 added clearing the receiver fifo statuses on resets gorban 7607d 04h /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 7637d 06h /trunk/
86 restored include for uart_defines.v in uart_test.v gorban 7907d 10h /trunk/
85 Updated documentation to include latest changes. gorban 7941d 02h /trunk/
84 The uart_defines.v file is included again in sources. gorban 7954d 01h /trunk/
83 Reverted to include uart_defines.v file in other files again. gorban 7954d 01h /trunk/
82 Updated to work with latest core. gorban 7960d 23h /trunk/
81 Added lastest additions. gorban 7960d 23h /trunk/
80 Remove uart_fifo.v because it is replaced by other 2 files. gorban 7960d 23h /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 7960d 23h /trunk/
75 Endian define added. Big Byte Endian is selected by default. mohor 8114d 06h /trunk/
74 tf_overrun signal was disabled since it was not used gorban 8119d 07h /trunk/
73 major bug in 32-bit mode that prevented register access fixed. gorban 8126d 06h /trunk/
72 UART PHY added. Files are fully operational, working on HW. mohor 8139d 14h /trunk/
71 Removed confusing comment gorban 8151d 02h /trunk/

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