zzh/2025-yatcpu
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PurplePower
2024-11-19 02:09:45 +08:00
parent 2b8e3eb45f
commit b4141db235
1 changed files with 7 additions and 4 deletions
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11
lab2/src/main/scala/board/z710/Top.scala
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@@ -28,11 +28,15 @@ class Top(binaryFilename: String = "say_goodbye.asmbin") extends Module {
val led = Output(Bool()) // z710 has few LEDs, use one for running indicator
})
// original ref clock is 125MHz, divided in clock_control.v by 5 to avoid total negative slack too large
val clock_freq = 25_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 = 32_000000, baudRate = 115200))
val uart = Module(new Uart(frequency = clock_freq, baudRate = 115200))
val dummy = Module(new Dummy)
// display.io.bundle <> dummy.io.bundle
@@ -82,14 +86,13 @@ class Top(binaryFilename: String = "say_goodbye.asmbin") extends Module {
}
// LED, blinks every second
val clock_freq = 40_000_000.U
val led_count = RegInit(0.U(32.W))
when (led_count >= clock_freq) {
when (led_count >= clock_freq.U) {
led_count := 0.U
}.otherwise {
led_count := led_count + 1.U
}
io.led := (led_count >= (clock_freq >> 1))
io.led := (led_count >= (clock_freq.U >> 1))