From c2481b10f4eca348580fc55695c460d3db699aa9 Mon Sep 17 00:00:00 2001
From: Daniel Esteban <conejoninja@users.noreply.github.com>
Date: Sun, 22 Dec 2019 19:37:16 +0100
Subject: [PATCH] Added Adafruit's pybadge target (#795)

* machine/pybadge: add support for Adafruit PyBadge board
---
 Makefile                     |   2 +
 README.md                    |   1 +
 src/machine/board_pybadge.go | 150 +++++++++++++++++++++++++++++++++++
 targets/pybadge.json         |   8 ++
 4 files changed, 161 insertions(+)
 create mode 100644 src/machine/board_pybadge.go
 create mode 100644 targets/pybadge.json

diff --git a/Makefile b/Makefile
index 5b1b785b..ff189ca7 100644
--- a/Makefile
+++ b/Makefile
@@ -229,6 +229,8 @@ smoketest:
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=feather-m4          examples/blinky1
 	@$(MD5SUM) test.hex
+	$(TINYGO) build -size short -o test.hex -target=pybadge             examples/blinky1
+	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=metro-m4-airlift    examples/blinky1
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=nucleo-f103rb       examples/blinky1
diff --git a/README.md b/README.md
index 8333b2e9..8777f254 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,7 @@ The following 22 microcontroller boards are currently supported:
 * [Adafruit ItsyBitsy M0](https://www.adafruit.com/product/3727)
 * [Adafruit ItsyBitsy M4](https://www.adafruit.com/product/3800)
 * [Adafruit Metro M4 Express Airlift](https://www.adafruit.com/product/4000)
+* [Adafruit PyBadge](https://www.adafruit.com/product/4200)
 * [Adafruit Trinket M0](https://www.adafruit.com/product/3500)
 * [Arduino Nano33 IoT](https://store.arduino.cc/nano-33-iot)
 * [Arduino Uno](https://store.arduino.cc/arduino-uno-rev3)
diff --git a/src/machine/board_pybadge.go b/src/machine/board_pybadge.go
new file mode 100644
index 00000000..86f17ebe
--- /dev/null
+++ b/src/machine/board_pybadge.go
@@ -0,0 +1,150 @@
+// +build sam,atsamd51,pybadge
+
+package machine
+
+import "device/sam"
+
+// used to reset into bootloader
+const RESET_MAGIC_VALUE = 0xf01669ef
+
+// GPIO Pins
+const (
+	D0  = PB17 // UART0 RX/PWM available
+	D1  = PB16 // UART0 TX/PWM available
+	D2  = PB03
+	D3  = PB02
+	D4  = PA14 // PWM available
+	D5  = PA16 // PWM available
+	D6  = PA18 // PWM available
+	D7  = PB14
+	D8  = PA15 // built-in neopixel
+	D9  = PA19 // PWM available
+	D10 = PA20 // can be used for PWM or UART1 TX
+	D11 = PA21 // can be used for PWM or UART1 RX
+	D12 = PA22 // PWM available
+	D13 = PA23 // PWM available
+)
+
+// Analog pins
+const (
+	A0 = PA02 // ADC/AIN[0]
+	A1 = PA05 // ADC/AIN[2]
+	A2 = PB08 // ADC/AIN[3]
+	A3 = PB09 // ADC/AIN[4]
+	A4 = PA04 // ADC/AIN[5]
+	A5 = PA06 // ADC/AIN[6]
+	A6 = PB01 // ADC/AIN[12]/VMEAS
+	A7 = PB04 // ADC/AIN[6]/LIGHT
+	A8 = D2   // ADC/AIN[14]
+	A9 = D3   // ADC/AIN[15]
+)
+
+const (
+	LED       = D13
+	NEOPIXELS = D8
+
+	LIGHTSENSOR = A7
+
+	BUTTON_LATCH = PB00
+	BUTTON_OUT   = PB30
+	BUTTON_CLK   = PB31
+
+	TFT_DC   = PB05
+	TFT_CS   = PB07
+	TFT_RST  = PA00
+	TFT_LITE = PA01
+
+	SPEAKER_ENABLE = PA27
+
+	QSPI_SCK    = PB10
+	QSPI_CS     = PB11
+	QSPI_DATA_1 = PA08
+	QSPI_DATA_2 = PA09
+	QSPI_DATA_3 = PA10
+	QSPI_DATA_4 = PA11
+)
+
+const (
+	BUTTON_LEFT_MASK   = 1
+	BUTTON_UP_MASK     = 2
+	BUTTON_DOWN_MASK   = 4
+	BUTTON_RIGHT_MASK  = 8
+	BUTTON_SELECT_MASK = 16
+	BUTTON_START_MASK  = 32
+	BUTTON_A_MASK      = 64
+	BUTTON_B_MASK      = 128
+)
+
+// UART0 aka USBCDC pins
+const (
+	USBCDC_DM_PIN = PA24
+	USBCDC_DP_PIN = PA25
+)
+
+// UART1 pins
+const (
+	UART_TX_PIN = D1
+	UART_RX_PIN = D0
+)
+
+// UART1 var is on SERCOM3, defined in atsamd51.go
+
+// UART2 pins
+const (
+	UART2_TX_PIN = A4
+	UART2_RX_PIN = A5
+)
+
+// UART2 var is on SERCOM0, defined in atsamd51.go
+
+// I2C pins
+const (
+	SDA_PIN = PA12 // SDA: SERCOM2/PAD[0]
+	SCL_PIN = PA13 // SCL: SERCOM2/PAD[1]
+)
+
+// I2C on the ItsyBitsy M4.
+var (
+	I2C0 = I2C{Bus: sam.SERCOM2_I2CM,
+		SDA:     SDA_PIN,
+		SCL:     SCL_PIN,
+		PinMode: PinSERCOM}
+)
+
+// SPI pins
+const (
+	SPI0_SCK_PIN  = PA17 // SCK: SERCOM1/PAD[1]
+	SPI0_MOSI_PIN = PB23 // MOSI: SERCOM1/PAD[3]
+	SPI0_MISO_PIN = PB22 // MISO: SERCOM1/PAD[2]
+)
+
+// SPI on the PyBadge.
+var (
+	SPI0 = SPI{Bus: sam.SERCOM1_SPIM,
+		SCK:         SPI0_SCK_PIN,
+		MOSI:        SPI0_MOSI_PIN,
+		MISO:        SPI0_MISO_PIN,
+		DOpad:       spiTXPad3SCK1,
+		DIpad:       sercomRXPad2,
+		MISOPinMode: PinSERCOM,
+		MOSIPinMode: PinSERCOM,
+		SCKPinMode:  PinSERCOM,
+	}
+)
+
+// TFT SPI pins
+const (
+	SPI1_SCK_PIN  = PB13 // SCK: SERCOM4/PAD[1]
+	SPI1_MOSI_PIN = PB15 // MOSI: SERCOM4/PAD[3]
+)
+
+// TFT SPI on the PyBadge.
+var (
+	SPI1 = SPI{Bus: sam.SERCOM4_SPIM,
+		SCK:         SPI1_SCK_PIN,
+		MOSI:        SPI1_MOSI_PIN,
+		DOpad:       spiTXPad3SCK1,
+		MOSIPinMode: PinSERCOM,
+		SCKPinMode:  PinSERCOM,
+	}
+)
diff --git a/targets/pybadge.json b/targets/pybadge.json
new file mode 100644
index 00000000..57f5ec81
--- /dev/null
+++ b/targets/pybadge.json
@@ -0,0 +1,8 @@
+{
+    "inherits": ["atsamd51j19a"],
+    "build-tags": ["sam", "atsamd51j19a", "pybadge"],
+    "flash-1200-bps-reset": "true",
+    "flash-method": "msd",
+    "msd-volume-name": "PYBADGEBOOT",
+    "msd-firmware-name": "arcade.uf2"
+}