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Line 60... |
//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//
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//
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// CVS Revision History
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// CVS Revision History
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//
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//
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// $Log: not supported by cvs2svn $
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// $Log: not supported by cvs2svn $
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// Revision 1.40 2003/06/11 16:37:47 gorban
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// 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.
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//
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// Revision 1.39 2002/07/29 21:16:18 gorban
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// Revision 1.39 2002/07/29 21:16:18 gorban
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// The uart_defines.v file is included again in sources.
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// The uart_defines.v file is included again in sources.
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//
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//
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// Revision 1.38 2002/07/22 23:02:23 gorban
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// Revision 1.38 2002/07/22 23:02:23 gorban
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// Bug Fixes:
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// Bug Fixes:
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`endif
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`endif
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wire stx_pad_o; // received from transmitter module
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wire stx_pad_o; // received from transmitter module
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wire srx_pad_i;
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wire srx_pad_i;
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wire srx_pad;
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reg [7:0] wb_dat_o;
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reg [7:0] wb_dat_o;
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wire [`UART_ADDR_WIDTH-1:0] wb_addr_i;
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wire [`UART_ADDR_WIDTH-1:0] wb_addr_i;
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wire [7:0] wb_dat_i;
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wire [7:0] wb_dat_i;
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// Transmitter Instance
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// Transmitter Instance
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wire serial_out;
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wire serial_out;
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uart_transmitter transmitter(clk, wb_rst_i, lcr, tf_push, wb_dat_i, enable, serial_out, tstate, tf_count, tx_reset, lsr_mask);
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uart_transmitter transmitter(clk, wb_rst_i, lcr, tf_push, wb_dat_i, enable, serial_out, tstate, tf_count, tx_reset, lsr_mask);
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// Synchronizing and sampling serial RX input
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uart_sync_flops i_uart_sync_flops
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(
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.rst_i (wb_rst_i),
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.clk_i (clk),
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.stage1_rst_i (1'b0),
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.stage1_clk_en_i (1'b1),
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.async_dat_i (srx_pad_i),
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.sync_dat_o (srx_pad)
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);
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defparam i_uart_sync_flops.width = 1;
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defparam i_uart_sync_flops.init_value = 1'b1;
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// handle loopback
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// handle loopback
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wire serial_in = loopback ? serial_out : srx_pad_i;
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wire serial_in = loopback ? serial_out : srx_pad;
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assign stx_pad_o = loopback ? 1'b1 : serial_out;
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assign stx_pad_o = loopback ? 1'b1 : serial_out;
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// Receiver Instance
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// Receiver Instance
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uart_receiver receiver(clk, wb_rst_i, lcr, rf_pop, serial_in, enable,
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uart_receiver receiver(clk, wb_rst_i, lcr, rf_pop, serial_in, enable,
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counter_t, rf_count, rf_data_out, rf_error_bit, rf_overrun, rx_reset, lsr_mask, rstate, rf_push_pulse);
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counter_t, rf_count, rf_data_out, rf_error_bit, rf_overrun, rx_reset, lsr_mask, rstate, rf_push_pulse);
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