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machine/i2c: add interface check and implementation where missing for SetBaudRate() (#3406)

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* machine/i2c: add interface check and placeholder implementation where missing for SetBaudRate()
This commit is contained in:
Ron Evans
2023-10-14 13:17:24 +02:00
committed by GitHub
parent 72b715fa99
commit 935a293106
11 changed files with 104 additions and 42 deletions
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src/machine/i2c.go
+13 -1
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@@ -1,4 +1,4 @@
//go:build atmega || nrf || sam || stm32 || fe310 || k210 || rp2040
//go:build atmega || nrf || sam || stm32 || fe310 || k210 || rp2040 || mimxrt1062
package machine
@@ -6,6 +6,17 @@ import (
"errors"
)
// If you are getting a compile error on this line please check to see you've
// correctly implemented the methods on the I2C type. They must match
// the i2cController interface method signatures type to type perfectly.
// If not implementing the I2C type please remove your target from the build tags
// at the top of this file.
var _ interface { // 2
Configure(config I2CConfig) error
Tx(addr uint16, w, r []byte) error
SetBaudRate(br uint32) error
} = (*I2C)(nil)
// TWI_FREQ is the I2C bus speed. Normally either 100 kHz, or 400 kHz for high-speed bus.
//
// Deprecated: use 100 * machine.KHz or 400 * machine.KHz instead.
@@ -25,6 +36,7 @@ var (
errI2CBusError = errors.New("I2C bus error")
errI2COverflow = errors.New("I2C receive buffer overflow")
errI2COverread = errors.New("I2C transmit buffer overflow")
errI2CNotImplemented = errors.New("I2C operation not yet implemented")
)
// I2CTargetEvent reflects events on the I2C bus