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

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Rev Log message Author Age Path
106 New directory structure. root 5549d 14h /uart16550/trunk/
105 Timeout interrupt should be generated only when there is at least ony
character in the fifo.		 igorm 7118d 15h /trunk/
103 Brandl Tobias repaired a bug regarding frame error in receiver when brake is received. tadejm 7275d 09h /trunk/
101 Added 2 LSB address generation dependent on select lines and LITLE/BIG endian when UART is in 32-bit mode. tadejm 7303d 11h /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 7303d 12h /trunk/
99 Added synchronizer flops for RX input. tadejm 7303d 12h /trunk/
98 Added to synchronize RX input to Wishbone clock. tadejm 7303d 12h /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 7358d 20h /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 7358d 20h /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 7358d 20h /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 7358d 20h /trunk/
92 This is revision 1.4, revision 1.5 was put there by mistake. simons 7472d 13h /trunk/
91 Removed files due to new complete testbench. tadejm 7473d 04h /trunk/
90 Add Flextronics header avisha 7475d 11h /trunk/
89 adjusted comment + define dries 7555d 16h /trunk/
88 added clearing the receiver fifo statuses on resets gorban 7618d 06h /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 7648d 07h /trunk/
86 restored include for uart_defines.v in uart_test.v gorban 7918d 11h /trunk/
85 Updated documentation to include latest changes. gorban 7952d 03h /trunk/
84 The uart_defines.v file is included again in sources. gorban 7965d 03h /trunk/
83 Reverted to include uart_defines.v file in other files again. gorban 7965d 03h /trunk/
82 Updated to work with latest core. gorban 7972d 01h /trunk/
81 Added lastest additions. gorban 7972d 01h /trunk/
80 Remove uart_fifo.v because it is replaced by other 2 files. gorban 7972d 01h /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 7972d 01h /trunk/
75 Endian define added. Big Byte Endian is selected by default. mohor 8125d 07h /trunk/
74 tf_overrun signal was disabled since it was not used gorban 8130d 08h /trunk/
73 major bug in 32-bit mode that prevented register access fixed. gorban 8137d 08h /trunk/
72 UART PHY added. Files are fully operational, working on HW. mohor 8150d 15h /trunk/
71 Removed confusing comment gorban 8162d 04h /trunk/

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