mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-09 21:43:40 +00:00
あーるどん
e8bb38f7c9
* rp2: allow SPI transmit-only without SDI * ci: rerun --------- Co-authored-by: rdon <you@example.com>
76 lines
2.6 KiB
Go
76 lines
2.6 KiB
Go
//go:build rp2350b
|
|
|
|
package machine
|
|
|
|
import "device/rp"
|
|
|
|
// RP2350B has additional pins.
|
|
|
|
const (
|
|
GPIO30 Pin = 30 // peripherals: PWM7 channel A, I2C1 SDA
|
|
GPIO31 Pin = 31 // peripherals: PWM7 channel B, I2C1 SCL
|
|
GPIO32 Pin = 32 // peripherals: PWM8 channel A, I2C0 SDA
|
|
GPIO33 Pin = 33 // peripherals: PWM8 channel B, I2C0 SCL
|
|
GPIO34 Pin = 34 // peripherals: PWM9 channel A, I2C1 SDA
|
|
GPIO35 Pin = 35 // peripherals: PWM9 channel B, I2C1 SCL
|
|
GPIO36 Pin = 36 // peripherals: PWM10 channel A, I2C0 SDA
|
|
GPIO37 Pin = 37 // peripherals: PWM10 channel B, I2C0 SCL
|
|
GPIO38 Pin = 38 // peripherals: PWM11 channel A, I2C1 SDA
|
|
GPIO39 Pin = 39 // peripherals: PWM11 channel B, I2C1 SCL
|
|
GPIO40 Pin = 40 // peripherals: PWM8 channel A, I2C0 SDA
|
|
GPIO41 Pin = 41 // peripherals: PWM8 channel B, I2C0 SCL
|
|
GPIO42 Pin = 42 // peripherals: PWM9 channel A, I2C1 SDA
|
|
GPIO43 Pin = 43 // peripherals: PWM9 channel B, I2C1 SCL
|
|
GPIO44 Pin = 44 // peripherals: PWM10 channel A, I2C0 SDA
|
|
GPIO45 Pin = 45 // peripherals: PWM10 channel B, I2C0 SCL
|
|
GPIO46 Pin = 46 // peripherals: PWM11 channel A, I2C1 SDA
|
|
GPIO47 Pin = 47 // peripherals: PWM11 channel B, I2C1 SCL
|
|
)
|
|
|
|
// Analog pins on 2350b.
|
|
const (
|
|
ADC0 Pin = GPIO40
|
|
ADC1 Pin = GPIO41
|
|
ADC2 Pin = GPIO42
|
|
ADC3 Pin = GPIO43
|
|
ADC4 Pin = GPIO44
|
|
ADC5 Pin = GPIO45
|
|
ADC6 Pin = GPIO46
|
|
ADC7 Pin = GPIO47
|
|
// Ninth ADC channel.
|
|
thermADC = 48
|
|
)
|
|
|
|
// Additional PWMs on the RP2350B.
|
|
var (
|
|
PWM8 = getPWMGroup(8)
|
|
PWM9 = getPWMGroup(9)
|
|
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 == NoPin || 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 == NoPin || 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
|
|
}
|