| Line 46... |
Line 46... |
`define FLASH_ACCESS
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`define FLASH_ACCESS
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`define DBG_SCOPE // About 204 LUTs, at 2^6 addresses
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`define DBG_SCOPE // About 204 LUTs, at 2^6 addresses
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// `define INCLUDE_RTC // About 90 LUTs
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// `define INCLUDE_RTC // About 90 LUTs
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module busmaster(i_clk, i_rst,
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module busmaster(i_clk, i_rst,
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i_rx_stb, i_rx_data, o_tx_stb, o_tx_data, i_tx_busy,
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i_rx_stb, i_rx_data, o_tx_stb, o_tx_data, i_tx_busy,
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o_uart_rts,
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o_uart_cts,
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// The SPI Flash lines
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// The SPI Flash lines
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o_qspi_cs_n, o_qspi_sck, o_qspi_dat, i_qspi_dat, o_qspi_mod,
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o_qspi_cs_n, o_qspi_sck, o_qspi_dat, i_qspi_dat, o_qspi_mod,
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// The board I/O
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// The board I/O
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i_btn, o_led, o_pwm, o_pwm_aux,
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i_btn, o_led, o_pwm, o_pwm_aux,
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// Keypad connections
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// Keypad connections
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| Line 66... |
Line 66... |
input i_rx_stb;
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input i_rx_stb;
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input [7:0] i_rx_data;
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input [7:0] i_rx_data;
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output reg o_tx_stb;
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output reg o_tx_stb;
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output reg [7:0] o_tx_data;
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output reg [7:0] o_tx_data;
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input i_tx_busy;
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input i_tx_busy;
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output wire o_uart_rts;
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output wire o_uart_cts;
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// SPI flash control
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// SPI flash control
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output wire o_qspi_cs_n, o_qspi_sck;
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output wire o_qspi_cs_n, o_qspi_sck;
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output wire [3:0] o_qspi_dat;
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output wire [3:0] o_qspi_dat;
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input [3:0] i_qspi_dat;
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input [3:0] i_qspi_dat;
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output wire [1:0] o_qspi_mod;
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output wire [1:0] o_qspi_mod;
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| Line 317... |
Line 317... |
always @(posedge i_clk)
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always @(posedge i_clk)
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io_ack <= (wb_cyc)&&(wb_stb)&&(io_sel);
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io_ack <= (wb_cyc)&&(wb_stb)&&(io_sel);
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assign io_stall = 1'b0;
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assign io_stall = 1'b0;
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|
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wire pwm_ack, pwm_stall;
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wire pwm_ack, pwm_stall;
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wbpwmaudio theaudio(i_clk, wb_cyc,
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wbpwmaudio #(14'd10000,2,0,14)
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((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h4)), wb_we,
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theaudio(i_clk, wb_cyc,
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1'b0, wb_data,
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((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h4)),
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pwm_ack, pwm_stall, pwm_data, o_pwm, o_pwm_aux,
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wb_we, 1'b0, wb_data,
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pwm_ack, pwm_stall, pwm_data, o_pwm,
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o_pwm_aux, //={pwm_shutdown_n,pwm_gain}
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pwm_int);
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pwm_int);
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//
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//
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// Special Purpose I/O: Keypad, button, LED status and control
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// Special Purpose I/O: Keypad, button, LED status and control
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//
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//
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| Line 374... |
Line 376... |
if((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h7)&&(~wb_we))
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if((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h7)&&(~wb_we))
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rx_rdy <= i_rx_stb;
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rx_rdy <= i_rx_stb;
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else if (i_rx_stb)
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else if (i_rx_stb)
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rx_rdy <= (rx_rdy | i_rx_stb);
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rx_rdy <= (rx_rdy | i_rx_stb);
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end
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end
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assign o_uart_rts = (~rx_rdy);
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assign o_uart_cts = (~rx_rdy);
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assign uart_data = { 23'h0, ~rx_rdy, r_rx_data };
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assign uart_data = { 23'h0, ~rx_rdy, r_rx_data };
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//
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//
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// uart_ack gets returned as part of io_ack, since that happens when
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// uart_ack gets returned as part of io_ack, since that happens when
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// io_sel and wb_stb are defined
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// io_sel and wb_stb are defined
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//
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//
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