Subversion Repositories uart_observer

/**

* Demonstrates the functionality of the UART observer. Reads 64 bits from the terminal keyboard.

*/

module uart_observer_demonstrator (

  input USB_UART_TX_FPGA_RX_LS,

  input USB_UART_CTS_I_B_LS,

  input CLK_I,

  input GPIO_SW_E,

  input GPIO_SW_W,

  input GPIO_SW_S,

  input GPIO_SW_N,

  input GPIO_SW_C,

  input GPIO_DIP_SW0,

  input GPIO_DIP_SW1,

  input GPIO_DIP_SW2,

  input GPIO_DIP_SW3,

  output GPIO_LED_0,

  output GPIO_LED_1,

  output GPIO_LED_2,

  output GPIO_LED_3,

  output GPIO_LED_4,

  output GPIO_LED_5,

  output GPIO_LED_6,

  output GPIO_LED_7,

  output USB_UART_RX_FPGA_TX_LS,

  output USB_UART_RTS_O_B_LS

);

 // 32 bits we observe.

 wire [31:0] observables;

 uart_receiver #(.CLOCK_FREQ (90_000_000), .BAUDS(921600), .BITS(32) )

 UR(

  // Clock

  .CLK_I(CLK_I),

  // Values to observer

  .DAT_O(observables),

  // UART

  .RXD(USB_UART_TX_FPGA_RX_LS), // data  

  .CTR(USB_UART_CTS_I_B_LS)     // clear to receive

 );

 uart_observer #(.CLOCK_FREQ (90_000_000), .BAUDS(921600), .BITS(32) )

 U0(

  // Clock

  .CLK_I(CLK_I),

  // Values to observer

  .DAT_I(observables),

  // UART

  .TXD(USB_UART_RX_FPGA_TX_LS), // data  

  .RTS(USB_UART_RTS_O_B_LS),    // request to send

  .CTS(USB_UART_CTS_I_B_LS)     // clear to send

 );

 assign GPIO_LED_0 = observables[0];

 assign GPIO_LED_1 = observables[1];

 assign GPIO_LED_2 = observables[2];

 assign GPIO_LED_3 = observables[3];

 assign GPIO_LED_4 = observables[4];

endmodule