59 lines
981 B
Go
59 lines
981 B
Go
package ftdi_switch
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import (
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"log"
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"github.com/ziutek/ftdi"
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)
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var (
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logger log.Logger = *log.Default()
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ftdi_device *ftdi.Device
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data_byte byte = 0
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)
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func imit() {
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logger.SetPrefix("ftdi_switch: ")
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}
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func start(vendor_id int, product_id int, init_value int) error {
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var err error
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ftdi_device, err = ftdi.OpenFirst(vendor_id, product_id, ftdi.ChannelAny)
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if err != nil {
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logger.Println(err)
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}
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err = ftdi_device.SetBitmode(0xff, ftdi.ModeBitbang)
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if err != nil {
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logger.Println(err)
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}
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err = ftdi_device.SetBaudrate(192)
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if err != nil {
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logger.Println(err)
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}
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err = write_byte(0)
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if err != nil {
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logger.Println(err)
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}
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return err
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}
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func stop() error {
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return ftdi_device.Close()
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}
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func write_bit(bit byte, value bool) error {
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if value {
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data_byte |= 1 << bit
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} else {
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data_byte &= ^(1 << bit)
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}
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return ftdi_device.WriteByte(data_byte)
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}
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func write_byte(data byte) error {
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data_byte = data
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return ftdi_device.WriteByte(data_byte)
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}
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