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tinkerator
562b4c5020
* Create "pico2-ice" target board This board has an rp2350b chip on it, as well as a Lattice Semiconductor iCE40UP5K FPGA. More details of this open hardware board here: https://pico2-ice.tinyvision.ai/ Tested on a pico2-ice board with: ~/go/bin/tinygo flash -target=pico2-ice src/examples/blinky1/blinky1.go which blinks the GREEN LED (connected to GPIO0) on this board. Signed-off-by: Tinkerer <tinkerer@zappem.net> * More silkscreen labels for pico2-ice board Reading the schematic and the rev2 board viewer: https://raw.githubusercontent.com/tinyvision-ai-inc/pico2-ice/refs/heads/main/Board/Rev2/bom/ibom.html concluded that the RP2350B GPIO pins are not labeled with these pin numbers in the silkscreen. Instead, the silkscreen refers to uses of the GPIOs or the ICE numbered pins. RP2340B devoted pins map to the A1..4 B1..4 pins on the RP PMOD connector. Also silkscreen "~0".."~6" are labeled as pins N0..N6. Signed-off-by: Tinkerer <tinkerer@zappem.net> * Added a smoketest for pico2-ice board and tidied up GPIO defs Addresses review comments from aykevl. Signed-off-by: Tinkerer <tinkerer@zappem.net>
76 lines
2.6 KiB
Go
76 lines
2.6 KiB
Go
//go:build rp2350b
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package machine
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import "device/rp"
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// RP2350B has additional pins.
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const (
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GPIO30 Pin = 30 // peripherals: PWM7 channel A, I2C1 SDA
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GPIO31 Pin = 31 // peripherals: PWM7 channel B, I2C1 SCL
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GPIO32 Pin = 32 // peripherals: PWM8 channel A, I2C0 SDA
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GPIO33 Pin = 33 // peripherals: PWM8 channel B, I2C0 SCL
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GPIO34 Pin = 34 // peripherals: PWM9 channel A, I2C1 SDA
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GPIO35 Pin = 35 // peripherals: PWM9 channel B, I2C1 SCL
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GPIO36 Pin = 36 // peripherals: PWM10 channel A, I2C0 SDA
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GPIO37 Pin = 37 // peripherals: PWM10 channel B, I2C0 SCL
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GPIO38 Pin = 38 // peripherals: PWM11 channel A, I2C1 SDA
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GPIO39 Pin = 39 // peripherals: PWM11 channel B, I2C1 SCL
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GPIO40 Pin = 40 // peripherals: PWM8 channel A, I2C0 SDA
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GPIO41 Pin = 41 // peripherals: PWM8 channel B, I2C0 SCL
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GPIO42 Pin = 42 // peripherals: PWM9 channel A, I2C1 SDA
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GPIO43 Pin = 43 // peripherals: PWM9 channel B, I2C1 SCL
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GPIO44 Pin = 44 // peripherals: PWM10 channel A, I2C0 SDA
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GPIO45 Pin = 45 // peripherals: PWM10 channel B, I2C0 SCL
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GPIO46 Pin = 46 // peripherals: PWM11 channel A, I2C1 SDA
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GPIO47 Pin = 47 // peripherals: PWM11 channel B, I2C1 SCL
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)
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// Analog pins on 2350b.
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const (
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ADC0 Pin = GPIO40
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ADC1 Pin = GPIO41
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ADC2 Pin = GPIO42
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ADC3 Pin = GPIO43
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ADC4 Pin = GPIO44
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ADC5 Pin = GPIO45
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ADC6 Pin = GPIO46
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ADC7 Pin = GPIO47
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// Ninth ADC channel.
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thermADC = 48
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)
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// Additional PWMs on the RP2350B.
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var (
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PWM8 = getPWMGroup(8)
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PWM9 = getPWMGroup(9)
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PWM10 = getPWMGroup(10)
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PWM11 = getPWMGroup(11)
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)
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// validPins confirms that the SPI pin selection is a legitimate one
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// for the the 2350b chip.
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func (spi *SPI) validPins(config SPIConfig) error {
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var okSDI, okSDO, okSCK bool
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switch spi.Bus {
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case rp.SPI0:
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okSDI = config.SDI == 0 || config.SDI == 4 || config.SDI == 16 || config.SDI == 20 || config.SDI == 32 || config.SDI == 36
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okSDO = config.SDO == 3 || config.SDO == 7 || config.SDO == 19 || config.SDO == 23 || config.SDO == 35 || config.SDO == 39
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okSCK = config.SCK == 2 || config.SCK == 6 || config.SCK == 18 || config.SCK == 22 || config.SCK == 34 || config.SCK == 38
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case rp.SPI1:
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okSDI = config.SDI == 8 || config.SDI == 12 || config.SDI == 24 || config.SDI == 28 || config.SDI == 40 || config.SDI == 44
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okSDO = config.SDO == 11 || config.SDO == 15 || config.SDO == 27 || config.SDO == 31 || config.SDO == 43 || config.SDO == 47
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okSCK = config.SCK == 10 || config.SCK == 14 || config.SCK == 26 || config.SCK == 30 || config.SCK == 42 || config.SCK == 46
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}
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switch {
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case !okSDI:
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return errSPIInvalidSDI
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case !okSDO:
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return errSPIInvalidSDO
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case !okSCK:
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return errSPIInvalidSCK
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}
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return nil
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}
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