Teensy 3.6

.gitignore

@@ -5,6 +5,8 @@ src/device/avr/*.ld
 src/device/avr/*.s
 src/device/nrf/*.go
 src/device/nrf/*.s
+src/device/nxp/*.go
+src/device/nxp/*.s
 src/device/sam/*.go
 src/device/sam/*.s
 src/device/sifive/*.go

Makefile

@@ -51,7 +51,7 @@ else
     LLVM_OPTION += '-DLLVM_ENABLE_ASSERTIONS=OFF'
 endif
 
-.PHONY: all tinygo test $(LLVM_BUILDDIR) llvm-source clean fmt gen-device gen-device-nrf gen-device-avr
+.PHONY: all tinygo test $(LLVM_BUILDDIR) llvm-source clean fmt gen-device gen-device-nrf gen-device-nxp gen-device-avr
 
 LLVM_COMPONENTS = all-targets analysis asmparser asmprinter bitreader bitwriter codegen core coroutines coverage debuginfodwarf executionengine frontendopenmp instrumentation interpreter ipo irreader linker lto mc mcjit objcarcopts option profiledata scalaropts support target
 
@@ -118,7 +118,7 @@ fmt-check:
 	@unformatted=$$(gofmt -l $(FMT_PATHS)); [ -z "$$unformatted" ] && exit 0; echo "Unformatted:"; for fn in $$unformatted; do echo "  $$fn"; done; exit 1
 
 
-gen-device: gen-device-avr gen-device-nrf gen-device-sam gen-device-sifive gen-device-stm32 gen-device-kendryte
+gen-device: gen-device-avr gen-device-nrf gen-device-sam gen-device-sifive gen-device-stm32 gen-device-kendryte gen-device-nxp
 
 gen-device-avr:
 	$(GO) build -o ./build/gen-device-avr ./tools/gen-device-avr/
@@ -133,6 +133,10 @@ gen-device-nrf: build/gen-device-svd
 	./build/gen-device-svd -source=https://github.com/NordicSemiconductor/nrfx/tree/master/mdk lib/nrfx/mdk/ src/device/nrf/
 	GO111MODULE=off $(GO) fmt ./src/device/nrf
 
+gen-device-nxp: build/gen-device-svd
+	./build/gen-device-svd -source=https://github.com/posborne/cmsis-svd/tree/master/data/NXP lib/cmsis-svd/data/NXP/ src/device/nxp/
+	GO111MODULE=off $(GO) fmt ./src/device/nxp
+
 gen-device-sam: build/gen-device-svd
 	./build/gen-device-svd -source=https://github.com/posborne/cmsis-svd/tree/master/data/Atmel lib/cmsis-svd/data/Atmel/ src/device/sam/
 	GO111MODULE=off $(GO) fmt ./src/device/sam

README.md

@@ -140,3 +140,5 @@ The original reasoning was: if [Python](https://micropython.org/) can run on mic
 This project is licensed under the BSD 3-clause license, just like the [Go project](https://golang.org/LICENSE) itself.
 
 Some code has been copied from the LLVM project and is therefore licensed under [a variant of the Apache 2.0 license](http://releases.llvm.org/10.0.0/LICENSE.TXT). This has been clearly indicated in the header of these files.
+
+Some code has been copied and/or ported from Paul Stoffregen's Teensy libraries and is therefore licensed under PJRC's license. This has been clearly indicated in the header of these files.

src/device/arm/arm.go

@@ -174,6 +174,11 @@ func EnableIRQ(irq uint32) {
 	NVIC.ISER[irq>>5].Set(1 << (irq & 0x1F))
 }
 
+// Disable the given interrupt number.
+func DisableIRQ(irq uint32) {
+	NVIC.ICER[irq>>5].Set(1 << (irq & 0x1F))
+}
+
 // Set the priority of the given interrupt number.
 // Note that the priority is given as a 0-255 number, where some of the lower
 // bits are not implemented by the hardware. For example, to set a low interrupt

src/machine/board_teensy36.go

@@ -0,0 +1,101 @@
+// +build nxp,mk66f18,teensy36
+
+package machine
+
+// CPUFrequency returns the frequency of the ARM core clock (180MHz)
+func CPUFrequency() uint32 { return 180000000 }
+
+// ClockFrequency returns the frequency of the external oscillator (16MHz)
+func ClockFrequency() uint32 { return 16000000 }
+
+// LED on the Teensy
+const LED = PC05
+
+// digital IO
+const (
+	D00 = PB16
+	D01 = PB17
+	D02 = PD00
+	D03 = PA12
+	D04 = PA13
+	D05 = PD07
+	D06 = PD04
+	D07 = PD02
+	D08 = PD03
+	D09 = PC03
+	D10 = PC04
+	D11 = PC06
+	D12 = PC07
+	D13 = PC05
+	D14 = PD01
+	D15 = PC00
+	D16 = PB00
+	D17 = PB01
+	D18 = PB03
+	D19 = PB02
+	D20 = PD05
+	D21 = PD06
+	D22 = PC01
+	D23 = PC02
+	D24 = PE26
+	D25 = PA05
+	D26 = PA14
+	D27 = PA15
+	D28 = PA16
+	D29 = PB18
+	D30 = PB19
+	D31 = PB10
+	D32 = PB11
+	D33 = PE24
+	D34 = PE25
+	D35 = PC08
+	D36 = PC09
+	D37 = PC10
+	D38 = PC11
+	D39 = PA17
+	D40 = PA28
+	D41 = PA29
+	D42 = PA26
+	D43 = PB20
+	D44 = PB22
+	D45 = PB23
+	D46 = PB21
+	D47 = PD08
+	D48 = PD09
+	D49 = PB04
+	D50 = PB05
+	D51 = PD14
+	D52 = PD13
+	D53 = PD12
+	D54 = PD15
+	D55 = PD11
+	D56 = PE10
+	D57 = PE11
+	D58 = PE00
+	D59 = PE01
+	D60 = PE02
+	D61 = PE03
+	D62 = PE04
+	D63 = PE05
+)
+
+var (
+	TeensyUART1 = &UART0
+	TeensyUART2 = &UART1
+	TeensyUART3 = &UART2
+	TeensyUART4 = &UART3
+	TeensyUART5 = &UART4
+)
+
+const (
+	defaultUART0RX = D00
+	defaultUART0TX = D01
+	defaultUART1RX = D09
+	defaultUART1TX = D10
+	defaultUART2RX = D07
+	defaultUART2TX = D08
+	defaultUART3RX = D31
+	defaultUART3TX = D32
+	defaultUART4RX = D34
+	defaultUART4TX = D33
+)

src/machine/buffer.go

@@ -44,3 +44,9 @@ func (rb *RingBuffer) Get() (byte, bool) {
 	}
 	return 0, false
 }
+
+// Clear resets the head and tail pointer to zero.
+func (rb *RingBuffer) Clear() {
+	rb.head.Set(0)
+	rb.tail.Set(0)
+}