lab2打包

lab2/朱梓涵24325356/scala/board/z710v1.3/Top.scala

@@ -0,0 +1,123 @@
+// Copyright 2022 Canbin Huang
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package board.z710v1_3
+
+import chisel3._
+import chisel3.stage.{ChiselGeneratorAnnotation, ChiselStage}
+import chisel3.util.Cat
+import peripheral._
+import riscv.Parameters
+import riscv.core.{CPU, ProgramCounter}
+
+class Top(binaryFilename: String = "say_goodbye.asmbin") extends Module {
+  val io = IO(new Bundle() {
+    val tx = Output(Bool())
+    val rx = Input(Bool())
+
+    val led = Output(Bool())  // z710 has few LEDs, use one for running indicator
+  })
+
+  
+  val clock_freq = 50_000_000
+
+  val mem = Module(new Memory(Parameters.MemorySizeInWords))
+  // val hdmi_display = Module(new HDMIDisplay)
+  // val display = Module(new CharacterDisplay)
+  val timer = Module(new Timer)
+  val uart = Module(new Uart(frequency = clock_freq, baudRate = 115200))
+  val dummy = Module(new Dummy)
+
+  // display.io.bundle <> dummy.io.bundle
+  mem.io.bundle <> dummy.io.bundle
+  mem.io.debug_read_address := 0.U
+  timer.io.bundle <> dummy.io.bundle
+  uart.io.bundle <> dummy.io.bundle
+  io.tx := uart.io.txd
+  uart.io.rxd := io.rx
+
+  val instruction_rom = Module(new InstructionROM(binaryFilename))
+  val rom_loader = Module(new ROMLoader(instruction_rom.capacity))
+
+  rom_loader.io.rom_data := instruction_rom.io.data
+  rom_loader.io.load_address := Parameters.EntryAddress
+  instruction_rom.io.address := rom_loader.io.rom_address
+
+  val CPU_clkdiv = RegInit(UInt(2.W),0.U)
+  val CPU_tick = Wire(Bool())
+  val CPU_next = Wire(UInt(2.W))
+  CPU_next := Mux(CPU_clkdiv === 3.U, 0.U, CPU_clkdiv + 1.U)
+  CPU_tick := CPU_clkdiv === 0.U
+  CPU_clkdiv := CPU_next
+
+  withClock(CPU_tick.asClock) {
+    val cpu = Module(new CPU)
+    // cpu.io.interrupt_flag := Cat(uart.io.signal_interrupt, timer.io.signal_interrupt)
+
+    /* disable interrupt flag for now, some unexpected bugs in Zybo 7010 v1.3 board*/
+    cpu.io.interrupt_flag := 0.U
+
+    cpu.io.csr_regs_debug_read_address := 0.U
+    cpu.io.regs_debug_read_address := 0.U
+    // cpu.io.debug_read_address := 0.U
+    // cpu.io.memory_bundle.read_data := 0.U
+    cpu.io.instruction_valid := rom_loader.io.load_finished
+    mem.io.instruction_address := cpu.io.instruction_address
+    cpu.io.instruction := mem.io.instruction
+
+    when(!rom_loader.io.load_finished) {
+      rom_loader.io.bundle <> mem.io.bundle
+      cpu.io.memory_bundle.read_data := 0.U
+    }.otherwise {
+      rom_loader.io.bundle.read_data := 0.U
+      when(cpu.io.deviceSelect === 2.U) {
+        cpu.io.memory_bundle <> uart.io.bundle
+      }.otherwise {
+        cpu.io.memory_bundle <> mem.io.bundle
+      }
+    }
+
+    when(!rom_loader.io.load_finished) {
+      rom_loader.io.bundle <> mem.io.bundle
+      cpu.io.memory_bundle.read_data := 0.U
+    }.otherwise {
+      rom_loader.io.bundle.read_data := 0.U
+      cpu.io.memory_bundle <> mem.io.bundle
+    }
+
+    when (uart.io.bundle.write_enable) {
+      val the_char = cpu.io.memory_bundle.write_data(7, 0)
+      printf(cf"${the_char.asUInt}%c")
+    }
+  }
+
+  // LED, blinks every second
+  val led_count = RegInit(0.U(32.W))
+  when (led_count >= clock_freq.U) {
+    led_count := 0.U
+  }.otherwise {
+    led_count := led_count + 1.U
+  }
+  io.led := (led_count >= (clock_freq.U >> 1))
+
+
+
+}
+
+object VerilogGenerator extends App {
+  (new ChiselStage).execute(
+    Array("-X", "verilog", "-td", "verilog/z710v1.3"), 
+    Seq(ChiselGeneratorAnnotation(() => new Top("say_goodbye.asmbin")))   // program to run on CPU
+  )
+}