mirror of
https://github.com/tinygo-org/drivers.git
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nobonobo
1c10dea443
* add support extended id for mcp2515 * fix mcp2512 example code * revert Pin control
56 lines
1.0 KiB
Go
56 lines
1.0 KiB
Go
package main
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import (
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"fmt"
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"machine"
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"time"
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"tinygo.org/x/drivers/mcp2515"
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)
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var (
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spi = machine.SPI0
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csPin = machine.D5
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)
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func main() {
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spi.Configure(machine.SPIConfig{
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Frequency: 115200,
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SCK: machine.SPI0_SCK_PIN,
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SDO: machine.SPI0_SDO_PIN,
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SDI: machine.SPI0_SDI_PIN,
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Mode: 0})
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can := mcp2515.New(spi, csPin)
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can.Configure(mcp2515.Configuration{})
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err := can.Begin(mcp2515.CAN500kBps, mcp2515.Clock8MHz)
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if err != nil {
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failMessage(err.Error())
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}
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for {
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err := can.Tx(0x111, 8, []byte{0x00, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA})
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if err != nil {
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failMessage(err.Error())
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}
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if can.Received() {
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msg, err := can.Rx()
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if err != nil {
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failMessage(err.Error())
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}
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fmt.Printf("CAN-ID: %03X dlc: %d data: ", msg.ID, msg.Dlc)
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for _, b := range msg.Data {
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fmt.Printf("%02X ", b)
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}
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fmt.Print("\r\n")
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}
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time.Sleep(time.Millisecond * 500)
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}
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}
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func failMessage(msg string) {
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for {
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println(msg)
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time.Sleep(1 * time.Second)
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}
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}
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