diff --git a/GNUmakefile b/GNUmakefile index 962b2e2613..b29b0952e4 100644 --- a/GNUmakefile +++ b/GNUmakefile @@ -621,6 +621,8 @@ smoketest: testchdir @$(MD5SUM) test.hex $(TINYGO) build -size short -o test.hex -target=feather-rp2040 examples/device-id @$(MD5SUM) test.hex + $(TINYGO) build -size short -o test.hex -target=pico2-ice examples/blinky1 + @$(MD5SUM) test.hex # test simulated boards on play.tinygo.org ifneq ($(WASM), 0) GOOS=js GOARCH=wasm $(TINYGO) build -size short -o test.wasm -tags=arduino examples/blinky1 diff --git a/src/machine/board_pico2_ice.go b/src/machine/board_pico2_ice.go new file mode 100644 index 0000000000..de3b9845b9 --- /dev/null +++ b/src/machine/board_pico2_ice.go @@ -0,0 +1,173 @@ +//go:build pico2_ice + +// Most of the info is from +// https://pico2-ice.tinyvision.ai/md_pinout.html although +// (2025-09-07) RP4 appears twice in that pinout - the schematic is +// more clear. Consistent with other RPi boards, we use GPn instead of +// RPn to reference the RPi connected pins. + +package machine + +// GPIO pins +const ( + GP0 = GPIO0 + GP1 = GPIO1 + GP2 = GPIO2 + GP3 = GPIO3 + GP4 = GPIO4 + GP5 = GPIO5 + GP6 = GPIO6 + GP7 = GPIO7 + GP8 = GPIO8 + GP9 = GPIO9 + GP10 = GPIO10 + GP11 = GPIO11 + GP12 = GPIO12 + GP13 = GPIO13 + GP14 = GPIO14 + GP15 = GPIO15 + GP16 = GPIO16 + GP17 = GPIO17 + GP18 = GPIO18 + GP19 = GPIO19 + GP20 = GPIO20 + GP21 = GPIO21 + GP22 = GPIO22 + GP23 = GPIO23 + GP24 = GPIO24 + GP25 = GPIO25 + GP26 = GPIO26 + GP27 = GPIO27 + GP28 = GPIO28 + GP29 = GPIO29 + GP30 = GPIO30 + GP31 = GPIO31 + GP32 = GPIO32 + GP33 = GPIO33 + GP34 = GPIO34 + GP35 = GPIO35 + GP36 = GPIO36 + GP37 = GPIO37 + GP38 = GPIO38 + GP39 = GPIO39 + GP40 = GPIO40 + GP41 = GPIO41 + GP42 = GPIO42 + GP43 = GPIO43 + GP44 = GPIO44 + GP45 = GPIO45 + GP46 = GPIO46 + GP47 = GPIO47 + + // RPi pins shared with ICE. The ICE number is what appears on + // the board silkscreen. + ICE9 = GP28 + ICE11 = GP29 + ICE14 = GP7 + ICE15 = GP6 + ICE16 = GP5 + ICE17 = GP4 + ICE18 = GP27 + ICE19 = GP23 + ICE20 = GP22 + ICE21 = GP26 + ICE23 = GP25 + ICE25 = GP30 + ICE26 = GP24 + ICE27 = GP20 + + // FPGA Clock pin. + ICE35_G0 = GP21 + + // Silkscreen & Pinout names + ICE_SSN = ICE16 + ICE_SO = ICE14 + ICE_SI = ICE17 + ICE_CK = ICE15 + SD = GP2 + SC = GP3 + + FPGA_RSTN = GP31 + A3 = GP32 + A1 = GP33 + A4 = GP34 + A2 = GP35 + B3 = GP36 + B1 = GP37 + B4 = GP38 + B2 = GP39 + N0 = GP40 // On the board these are labeled "~0" + N1 = GP41 + N2 = GP42 + N3 = GP43 + N4 = GP44 + N5 = GP45 + N6 = GP46 + + // Functions from Schematic. + ICE_DONE = GP40 + USB_BOOT = GP42 + + // Button + SW1 = GP42 + BOOTSEL = GP42 + + // Tricolor LEDs + LED_RED = GP1 + LED_GREEN = GP0 + LED_BLUE = GP9 + + // Onboard LED + LED = LED_GREEN + + // Onboard crystal oscillator frequency, in MHz. + xoscFreq = 12 // MHz +) + +// This board does not define default i2c pins. +const ( + I2C0_SDA_PIN = NoPin + I2C0_SCL_PIN = NoPin + I2C1_SDA_PIN = NoPin + I2C1_SCL_PIN = NoPin +) + +// SPI default pins +const ( + // Default Serial Clock Bus 0 for SPI communications + SPI0_SCK_PIN = GPIO18 + // Default Serial Out Bus 0 for SPI communications + SPI0_SDO_PIN = GPIO19 // Tx + // Default Serial In Bus 0 for SPI communications + SPI0_SDI_PIN = GPIO16 // Rx + + // Default Serial Clock Bus 1 for SPI communications + SPI1_SCK_PIN = GPIO10 + // Default Serial Out Bus 1 for SPI communications + SPI1_SDO_PIN = GPIO11 // Tx + // Default Serial In Bus 1 for SPI communications + SPI1_SDI_PIN = GPIO12 // Rx +) + +// UART pins +const ( + UART0_TX_PIN = GPIO0 + UART0_RX_PIN = GPIO1 + UART1_TX_PIN = GPIO8 + UART1_RX_PIN = GPIO9 + UART_TX_PIN = UART0_TX_PIN + UART_RX_PIN = UART0_RX_PIN +) + +var DefaultUART = UART0 + +// USB identifiers +const ( + usb_STRING_PRODUCT = "Pico2" + usb_STRING_MANUFACTURER = "Raspberry Pi" +) + +var ( + usb_VID uint16 = 0x2E8A + usb_PID uint16 = 0x000A +) diff --git a/src/machine/machine_rp2_2040.go b/src/machine/machine_rp2_2040.go index 9cdb3a072e..78336a3b76 100644 --- a/src/machine/machine_rp2_2040.go +++ b/src/machine/machine_rp2_2040.go @@ -124,6 +124,31 @@ const ( fnXIP pinFunc = 0 ) +// validPins confirms that the SPI pin selection is a legitimate one +// for the the 2040 chip. +func (spi *SPI) validPins(config SPIConfig) error { + var okSDI, okSDO, okSCK bool + switch spi.Bus { + case rp.SPI0: + okSDI = config.SDI == 0 || config.SDI == 4 || config.SDI == 16 || config.SDI == 20 + okSDO = config.SDO == 3 || config.SDO == 7 || config.SDO == 19 || config.SDO == 23 + okSCK = config.SCK == 2 || config.SCK == 6 || config.SCK == 18 || config.SCK == 22 + case rp.SPI1: + okSDI = config.SDI == 8 || config.SDI == 12 || config.SDI == 24 || config.SDI == 28 + okSDO = config.SDO == 11 || config.SDO == 15 || config.SDO == 27 + okSCK = config.SCK == 10 || config.SCK == 14 || config.SCK == 26 + } + switch { + case !okSDI: + return errSPIInvalidSDI + case !okSDO: + return errSPIInvalidSDO + case !okSCK: + return errSPIInvalidSCK + } + return nil +} + // Configure configures the gpio pin as per mode. func (p Pin) Configure(config PinConfig) { if p == NoPin { diff --git a/src/machine/machine_rp2_2350a.go b/src/machine/machine_rp2_2350a.go index 09ec8a1190..6918d22978 100644 --- a/src/machine/machine_rp2_2350a.go +++ b/src/machine/machine_rp2_2350a.go @@ -2,6 +2,8 @@ package machine +import "device/rp" + // Analog pins on RP2350a. const ( ADC0 Pin = GPIO26 @@ -12,3 +14,28 @@ const ( // fifth ADC channel. thermADC = 30 ) + +// validPins confirms that the SPI pin selection is a legitimate one +// for the the 2350a chip. +func (spi *SPI) validPins(config SPIConfig) error { + var okSDI, okSDO, okSCK bool + switch spi.Bus { + case rp.SPI0: + okSDI = config.SDI == 0 || config.SDI == 4 || config.SDI == 16 || config.SDI == 20 + okSDO = config.SDO == 3 || config.SDO == 7 || config.SDO == 19 || config.SDO == 23 + okSCK = config.SCK == 2 || config.SCK == 6 || config.SCK == 18 || config.SCK == 22 + case rp.SPI1: + okSDI = config.SDI == 8 || config.SDI == 12 || config.SDI == 24 || config.SDI == 28 + okSDO = config.SDO == 11 || config.SDO == 15 || config.SDO == 27 + okSCK = config.SCK == 10 || config.SCK == 14 || config.SCK == 26 + } + switch { + case !okSDI: + return errSPIInvalidSDI + case !okSDO: + return errSPIInvalidSDO + case !okSCK: + return errSPIInvalidSCK + } + return nil +} diff --git a/src/machine/machine_rp2_2350b.go b/src/machine/machine_rp2_2350b.go index 0fb5893f31..5f5a76da67 100644 --- a/src/machine/machine_rp2_2350b.go +++ b/src/machine/machine_rp2_2350b.go @@ -2,6 +2,8 @@ package machine +import "device/rp" + // RP2350B has additional pins. const ( @@ -46,3 +48,28 @@ var ( PWM10 = getPWMGroup(10) PWM11 = getPWMGroup(11) ) + +// validPins confirms that the SPI pin selection is a legitimate one +// for the the 2350b chip. +func (spi *SPI) validPins(config SPIConfig) error { + var okSDI, okSDO, okSCK bool + switch spi.Bus { + case rp.SPI0: + okSDI = config.SDI == 0 || config.SDI == 4 || config.SDI == 16 || config.SDI == 20 || config.SDI == 32 || config.SDI == 36 + okSDO = config.SDO == 3 || config.SDO == 7 || config.SDO == 19 || config.SDO == 23 || config.SDO == 35 || config.SDO == 39 + okSCK = config.SCK == 2 || config.SCK == 6 || config.SCK == 18 || config.SCK == 22 || config.SCK == 34 || config.SCK == 38 + case rp.SPI1: + okSDI = config.SDI == 8 || config.SDI == 12 || config.SDI == 24 || config.SDI == 28 || config.SDI == 40 || config.SDI == 44 + okSDO = config.SDO == 11 || config.SDO == 15 || config.SDO == 27 || config.SDO == 31 || config.SDO == 43 || config.SDO == 47 + okSCK = config.SCK == 10 || config.SCK == 14 || config.SCK == 26 || config.SCK == 30 || config.SCK == 42 || config.SCK == 46 + } + switch { + case !okSDI: + return errSPIInvalidSDI + case !okSDO: + return errSPIInvalidSDO + case !okSCK: + return errSPIInvalidSCK + } + return nil +} diff --git a/src/machine/machine_rp2_spi.go b/src/machine/machine_rp2_spi.go index d9cfc11d18..b64309fcc1 100644 --- a/src/machine/machine_rp2_spi.go +++ b/src/machine/machine_rp2_spi.go @@ -165,27 +165,9 @@ func (spi *SPI) Configure(config SPIConfig) error { config.SDI = SPI1_SDI_PIN } } - var okSDI, okSDO, okSCK bool - switch spi.Bus { - case rp.SPI0: - okSDI = config.SDI == 0 || config.SDI == 4 || config.SDI == 16 || config.SDI == 20 - okSDO = config.SDO == 3 || config.SDO == 7 || config.SDO == 19 || config.SDO == 23 - okSCK = config.SCK == 2 || config.SCK == 6 || config.SCK == 18 || config.SCK == 22 - case rp.SPI1: - okSDI = config.SDI == 8 || config.SDI == 12 || config.SDI == 24 || config.SDI == 28 - okSDO = config.SDO == 11 || config.SDO == 15 || config.SDO == 27 - okSCK = config.SCK == 10 || config.SCK == 14 || config.SCK == 26 + if err := spi.validPins(config); err != nil { + return err } - - switch { - case !okSDI: - return errSPIInvalidSDI - case !okSDO: - return errSPIInvalidSDO - case !okSCK: - return errSPIInvalidSCK - } - if config.Frequency == 0 { config.Frequency = defaultBaud } diff --git a/targets/pico2-ice.json b/targets/pico2-ice.json new file mode 100644 index 0000000000..379d531207 --- /dev/null +++ b/targets/pico2-ice.json @@ -0,0 +1,11 @@ +{ + "inherits": [ + "rp2350b" + ], + "build-tags": ["pico2_ice"], + "serial-port": ["2e8a:000A"], + "default-stack-size": 8192, + "ldflags": [ + "--defsym=__flash_size=4M" + ] +}