mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-06 12:03:41 +00:00
Ayke van Laethem
f845b469b1
This fixes/improves a few issues with I2C support:
* Validate I2C pins, so only pins that are supported by the hardware
can be used (similar to how it's done with PWM).
* Add address to Tx API (without it, the simulator can't really
simulate I2C).
* Add frequency when configuring. Not currently used, but might be
useful in the future and adding it now avoids possibly breaking
changes.
This is a breaking change, but since the simulator doesn't support I2C
yet that seems fine to me. (It does in my local changes, but those need
to be cleaned up before I can push them).
64 lines
1.4 KiB
Go
64 lines
1.4 KiB
Go
//go:build !baremetal && (bluemicro840 || circuitplay_bluefruit || clue_alpha || feather_nrf52840_sense || feather_nrf52840 || itsybitsy_nrf52840 || mdbt50qrx || nano_33_ble || nicenano || nrf52840_mdk || particle_3rd_gen || pca10056 || pca10059 || rak4631 || reelboard || xiao_ble)
|
|
|
|
// Simulator support for nrf52840 based boards.
|
|
|
|
package machine
|
|
|
|
// Channel values below are nil, so that they get filled in on the first use.
|
|
// This is the same as what happens on baremetal.
|
|
|
|
var PWM0 = &timerType{
|
|
instance: 0,
|
|
frequency: 16e6,
|
|
bits: 15,
|
|
prescalers: []int{1, 2, 4, 8, 16, 32, 64, 128},
|
|
channelPins: [][]Pin{
|
|
nil, // channel 0
|
|
nil, // channel 1
|
|
nil, // channel 2
|
|
nil, // channel 3
|
|
},
|
|
}
|
|
|
|
var PWM1 = &timerType{
|
|
instance: 1,
|
|
frequency: 16e6,
|
|
bits: 15,
|
|
prescalers: []int{1, 2, 4, 8, 16, 32, 64, 128},
|
|
channelPins: [][]Pin{
|
|
nil, // channel 0
|
|
nil, // channel 1
|
|
nil, // channel 2
|
|
nil, // channel 3
|
|
},
|
|
}
|
|
|
|
var PWM2 = &timerType{
|
|
instance: 2,
|
|
frequency: 16e6,
|
|
bits: 15,
|
|
prescalers: []int{1, 2, 4, 8, 16, 32, 64, 128},
|
|
channelPins: [][]Pin{
|
|
nil, // channel 0
|
|
nil, // channel 1
|
|
nil, // channel 2
|
|
nil, // channel 3
|
|
},
|
|
}
|
|
|
|
var PWM3 = &timerType{
|
|
instance: 3,
|
|
frequency: 16e6,
|
|
bits: 15,
|
|
prescalers: []int{1, 2, 4, 8, 16, 32, 64, 128},
|
|
channelPins: [][]Pin{
|
|
nil, // channel 0
|
|
nil, // channel 1
|
|
nil, // channel 2
|
|
nil, // channel 3
|
|
},
|
|
}
|
|
|
|
var I2C0 = &I2C{Bus: 0}
|
|
var I2C1 = &I2C{Bus: 1}
|