diff options
Diffstat (limited to 'src/machine/machine_nrf.go')
| -rw-r--r-- | src/machine/machine_nrf.go | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/src/machine/machine_nrf.go b/src/machine/machine_nrf.go index e457db9db..979693a10 100644 --- a/src/machine/machine_nrf.go +++ b/src/machine/machine_nrf.go @@ -206,6 +206,7 @@ type I2CConfig struct { Frequency uint32 SCL Pin SDA Pin + Mode I2CMode } // Configure is intended to setup the I2C interface. @@ -238,15 +239,21 @@ func (i2c *I2C) Configure(config I2CConfig) error { (nrf.GPIO_PIN_CNF_DRIVE_S0D1 << nrf.GPIO_PIN_CNF_DRIVE_Pos) | (nrf.GPIO_PIN_CNF_SENSE_Disabled << nrf.GPIO_PIN_CNF_SENSE_Pos)) - if config.Frequency >= 400*KHz { - i2c.Bus.FREQUENCY.Set(nrf.TWI_FREQUENCY_FREQUENCY_K400) - } else { - i2c.Bus.FREQUENCY.Set(nrf.TWI_FREQUENCY_FREQUENCY_K100) - } - i2c.setPins(config.SCL, config.SDA) - i2c.enableAsController() + i2c.mode = config.Mode + + if i2c.mode == I2CModeController { + if config.Frequency >= 400*KHz { + i2c.Bus.FREQUENCY.Set(nrf.TWI_FREQUENCY_FREQUENCY_K400) + } else { + i2c.Bus.FREQUENCY.Set(nrf.TWI_FREQUENCY_FREQUENCY_K100) + } + + i2c.enableAsController() + } else { + i2c.enableAsTarget() + } return nil } |