| Line 44... |
Line 44... |
//
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//
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//
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//
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module alttop(i_clk_8mhz,
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module alttop(i_clk_8mhz,
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o_qspi_cs_n, o_qspi_sck, io_qspi_dat,
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o_qspi_cs_n, o_qspi_sck, io_qspi_dat,
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i_btn, o_led, o_pwm, o_pwm_shutdown_n, o_pwm_gain,
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i_btn, o_led, o_pwm, o_pwm_shutdown_n, o_pwm_gain,
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i_uart, o_uart, i_uart_cts, o_uart_rts,
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i_uart, o_uart, o_uart_cts, i_uart_rts,
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i_kp_row, o_kp_col,
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i_kp_row, o_kp_col,
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i_gpio, o_gpio,
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i_gpio, o_gpio,
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io_scl, io_sda,
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io_scl, io_sda,
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i_depp_astb_n, i_depp_dstb_n, i_depp_write_n, io_depp_data,
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i_depp_astb_n, i_depp_dstb_n, i_depp_write_n, io_depp_data,
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o_depp_wait
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o_depp_wait
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| Line 67... |
Line 67... |
//
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//
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// and our serial port
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// and our serial port
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input i_uart;
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input i_uart;
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output wire o_uart;
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output wire o_uart;
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// and it's associated control wires
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// and it's associated control wires
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input i_uart_cts;
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output wire o_uart_cts;
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output wire o_uart_rts;
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input i_uart_rts;
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// Our keypad
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// Our keypad
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input [3:0] i_kp_row;
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input [3:0] i_kp_row;
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output wire [3:0] o_kp_col;
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output wire [3:0] o_kp_col;
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// and our GPIO
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// and our GPIO
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input [15:2] i_gpio;
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input [15:2] i_gpio;
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| Line 130... |
Line 130... |
assign tx_break = 1'b0;
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assign tx_break = 1'b0;
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rxuart rcvuart(clk_s, 1'b0, uart_setup,
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rxuart rcvuart(clk_s, 1'b0, uart_setup,
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i_uart, rx_stb, rx_data,
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i_uart, rx_stb, rx_data,
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rx_break, rx_parity_err, rx_frame_err, rx_ck_uart);
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rx_break, rx_parity_err, rx_frame_err, rx_ck_uart);
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txuart tcvuart(clk_s, reset_s, uart_setup, tx_break, tx_stb, tx_data,
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txuart tcvuart(clk_s, reset_s, uart_setup, tx_break, tx_stb, tx_data,
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o_uart, i_uart_cts, tx_busy);
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o_uart, tx_busy);
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//
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//
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// ALT-BUSMASTER
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// ALT-BUSMASTER
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//
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//
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| Line 151... |
Line 151... |
wire [1:0] qspi_bmod;
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wire [1:0] qspi_bmod;
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wire [15:0] w_gpio;
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wire [15:0] w_gpio;
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wire [7:0] w_depp_data;
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wire [7:0] w_depp_data;
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|
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`ifndef BYPASS_LOGIC
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`ifndef BYPASS_LOGIC
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altbusmaster slavedbus(clk_s, reset_s,
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altbusmaster slavedbus(clk_s, 1'b0,
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// External ... bus control (if enabled)
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// External ... bus control (if enabled)
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// DEPP I/O Control
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// DEPP I/O Control
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i_depp_astb_n, i_depp_dstb_n, i_depp_write_n,
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i_depp_astb_n, i_depp_dstb_n, i_depp_write_n,
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io_depp_data, w_depp_data, o_depp_wait,
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io_depp_data, w_depp_data, o_depp_wait,
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// External UART interface
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// External UART interface
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rx_stb, rx_data, tx_stb, tx_data, tx_busy, o_uart_rts,
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rx_stb, rx_data, tx_stb, tx_data, tx_busy, w_uart_cts,
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// SPI/SD-card flash
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// SPI/SD-card flash
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o_qspi_cs_n, o_qspi_sck, qspi_dat, io_qspi_dat, qspi_bmod,
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o_qspi_cs_n, o_qspi_sck, qspi_dat, io_qspi_dat, qspi_bmod,
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// Board lights and switches
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// Board lights and switches
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i_btn, o_led, o_pwm, { o_pwm_shutdown_n, o_pwm_gain },
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i_btn, o_led, o_pwm, { o_pwm_shutdown_n, o_pwm_gain },
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// Keypad connections
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// Keypad connections
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| Line 169... |
Line 169... |
// UART control
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// UART control
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uart_setup,
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uart_setup,
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// GPIO lines
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// GPIO lines
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{ i_gpio, io_scl, io_sda }, w_gpio
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{ i_gpio, io_scl, io_sda }, w_gpio
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);
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);
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assign o_uart_cts = (w_uart_cts)&&(i_uart_rts);
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|
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//
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//
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// Quad SPI support
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// Quad SPI support
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//
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//
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// Supporting a Quad SPI port requires knowing which direction the
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// Supporting a Quad SPI port requires knowing which direction the
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| Line 208... |
Line 209... |
assign o_qspi_cs_n = 1'b1;
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assign o_qspi_cs_n = 1'b1;
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assign o_qspi_sck = 1'b1;
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assign o_qspi_sck = 1'b1;
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|
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assign uart_setup = 30'h080002b6;
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assign uart_setup = 30'h080002b6;
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|
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assign o_uart_rts = 1'b1;
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assign o_uart_cts = 1'b1;
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`endif
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`endif
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//
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//
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// I2C support
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// I2C support
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//
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//
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// Supporting I2C requires a couple quick adjustments to our
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// Supporting I2C requires a couple quick adjustments to our
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