| Line 50... |
Line 50... |
// DEPP I/O Control
|
// DEPP I/O Control
|
i_depp_astb_n, i_depp_dstb_n, i_depp_write_n,
|
i_depp_astb_n, i_depp_dstb_n, i_depp_write_n,
|
i_depp_data, o_depp_data, o_depp_wait,
|
i_depp_data, o_depp_data, o_depp_wait,
|
// External UART interface
|
// External UART interface
|
i_rx_stb, i_rx_data, o_tx_stb, o_tx_data, i_tx_busy,
|
i_rx_stb, i_rx_data, o_tx_stb, o_tx_data, i_tx_busy,
|
o_uart_rts,
|
o_uart_cts,
|
// The SPI Flash lines
|
// The SPI Flash lines
|
o_qspi_cs_n, o_qspi_sck, o_qspi_dat, i_qspi_dat, o_qspi_mod,
|
o_qspi_cs_n, o_qspi_sck, o_qspi_dat, i_qspi_dat, o_qspi_mod,
|
// The board I/O
|
// The board I/O
|
i_btn, o_led, o_pwm, o_pwm_aux,
|
i_btn, o_led, o_pwm, o_pwm_aux,
|
// Keypad connections
|
// Keypad connections
|
| Line 75... |
Line 75... |
input i_rx_stb;
|
input i_rx_stb;
|
input [7:0] i_rx_data;
|
input [7:0] i_rx_data;
|
output reg o_tx_stb;
|
output reg o_tx_stb;
|
output reg [7:0] o_tx_data;
|
output reg [7:0] o_tx_data;
|
input i_tx_busy;
|
input i_tx_busy;
|
output wire o_uart_rts;
|
output wire o_uart_cts;
|
// SPI flash control
|
// SPI flash control
|
output wire o_qspi_cs_n, o_qspi_sck;
|
output wire o_qspi_cs_n, o_qspi_sck;
|
output wire [3:0] o_qspi_dat;
|
output wire [3:0] o_qspi_dat;
|
input [3:0] i_qspi_dat;
|
input [3:0] i_qspi_dat;
|
output wire [1:0] o_qspi_mod;
|
output wire [1:0] o_qspi_mod;
|
| Line 252... |
Line 252... |
//
|
//
|
//
|
//
|
reg rx_rdy;
|
reg rx_rdy;
|
wire [11:0] int_vector;
|
wire [11:0] int_vector;
|
assign int_vector = { flash_interrupt, gpio_int, pwm_int, keypad_int,
|
assign int_vector = { flash_interrupt, gpio_int, pwm_int, keypad_int,
|
~i_tx_busy, rx_rdy, tmrb_int, tmra_int,
|
(~o_tx_stb), rx_rdy,
|
|
tmrb_int, tmra_int,
|
rtc_interrupt, scop_interrupt,
|
rtc_interrupt, scop_interrupt,
|
wb_err, button_int };
|
wb_err, button_int };
|
|
|
wire [31:0] pic_data;
|
wire [31:0] pic_data;
|
icontrol #(12) pic(i_clk, 1'b0, (wb_stb)&&(io_sel)
|
icontrol #(12) pic(i_clk, 1'b0, (wb_stb)&&(io_sel)
|
| Line 268... |
Line 269... |
if (wb_err)
|
if (wb_err)
|
bus_err_addr <= wb_addr;
|
bus_err_addr <= wb_addr;
|
|
|
wire [31:0] timer_a, timer_b;
|
wire [31:0] timer_a, timer_b;
|
wire zta_ack, zta_stall, ztb_ack, ztb_stall;
|
wire zta_ack, zta_stall, ztb_ack, ztb_stall;
|
ziptimer #(32,20)
|
ziptimer #(32,31)
|
zipt_a(i_clk, 1'b0, 1'b1, wb_cyc,
|
zipt_a(i_clk, 1'b0, 1'b1, wb_cyc,
|
(wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h2),
|
(wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h2),
|
wb_we, wb_data, zta_ack, zta_stall, timer_a,
|
wb_we, wb_data, zta_ack, zta_stall, timer_a,
|
tmra_int);
|
tmra_int);
|
ziptimer #(32,20)
|
ziptimer #(32,31)
|
zipt_b(i_clk, 1'b0, 1'b1, wb_cyc,
|
zipt_b(i_clk, 1'b0, 1'b1, wb_cyc,
|
(wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h3),
|
(wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h3),
|
wb_we, wb_data, ztb_ack, ztb_stall, timer_b,
|
wb_we, wb_data, ztb_ack, ztb_stall, timer_b,
|
tmrb_int);
|
tmrb_int);
|
|
|
| Line 320... |
Line 321... |
always @(posedge i_clk)
|
always @(posedge i_clk)
|
io_ack <= (wb_cyc)&&(wb_stb)&&(io_sel);
|
io_ack <= (wb_cyc)&&(wb_stb)&&(io_sel);
|
assign io_stall = 1'b0;
|
assign io_stall = 1'b0;
|
|
|
wire pwm_ack, pwm_stall;
|
wire pwm_ack, pwm_stall;
|
wbpwmaudio theaudio(i_clk, wb_cyc,
|
wbpwmaudio #(14'd10000,2,0,14)
|
((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h4)), wb_we,
|
theaudio(i_clk, wb_cyc,
|
1'b0, wb_data,
|
((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h4)),
|
pwm_ack, pwm_stall, pwm_data, o_pwm, o_pwm_aux,
|
wb_we, 1'b0, wb_data,
|
|
pwm_ack, pwm_stall, pwm_data, o_pwm,
|
|
o_pwm_aux, //={pwm_shutdown_n,pwm_gain}
|
pwm_int);
|
pwm_int);
|
|
|
//
|
//
|
// Special Purpose I/O: Keypad, button, LED status and control
|
// Special Purpose I/O: Keypad, button, LED status and control
|
//
|
//
|
| Line 377... |
Line 380... |
if((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h7)&&(~wb_we))
|
if((wb_stb)&&(io_sel)&&(wb_addr[3:0]==4'h7)&&(~wb_we))
|
rx_rdy <= i_rx_stb;
|
rx_rdy <= i_rx_stb;
|
else if (i_rx_stb)
|
else if (i_rx_stb)
|
rx_rdy <= (rx_rdy | i_rx_stb);
|
rx_rdy <= (rx_rdy | i_rx_stb);
|
end
|
end
|
assign o_uart_rts = (~rx_rdy);
|
assign o_uart_cts = (~rx_rdy);
|
assign uart_data = { 23'h0, ~rx_rdy, r_rx_data };
|
assign uart_data = { 23'h0, ~rx_rdy, r_rx_data };
|
//
|
//
|
// uart_ack gets returned as part of io_ack, since that happens when
|
// uart_ack gets returned as part of io_ack, since that happens when
|
// io_sel and wb_stb are defined
|
// io_sel and wb_stb are defined
|
//
|
//
|
