func main() {
a, err := avt414.Open("/dev/ttyUSB0")
checkErr(err)
defer a.Close()
port := byte('D')
checkErr(a.Setup(port, 0))
buf := []byte("blaaaaa")
n, err := a.Writer(port).Write(buf)
checkErr(err)
if n != len(buf) {
panic("bad n")
}
const loop = 20
var i byte
for {
if i == 0 {
i = 0x80
}
start := time.Now()
for n := 0; n < loop; n++ {
if err = a.Write(port, i); err != nil {
log.Fatal(err)
}
if err = a.Write(port, 0); err != nil {
log.Fatal(err)
}
}
wr := time.Now().Sub(start)
start = time.Now()
var b byte
for n := 0; n < loop; n++ {
b, err = a.Read('B')
if err != nil {
log.Fatal(err)
}
}
rd := time.Now().Sub(start)
start = time.Now()
var c uint16
for n := 0; n < loop; n++ {
c, err = a.ADC(0)
if err != nil {
log.Fatal(err)
}
}
ad := time.Now().Sub(start)
log.Printf(
"(wr/s=%d), %x (rd/s=%d), %.3f (ad/s=%d)",
2*loop*time.Second/wr,
b, loop*time.Second/rd,
2.5*float32(c)/1023, loop*time.Second/ad,
)
i >>= 1
}
}
func main() {
a, err := avt414.Open("/dev/ttyUSB0")
checkErr(err)
defer a.Close()
port := byte('D')
checkErr(a.Setup(port, 0))
buf := []byte{0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80}
for {
const loop = 1000
start := time.Now()
for i := 0; i < loop; i++ {
_, err := a.Writer(port).Write(buf)
checkErr(err)
}
dt := time.Now().Sub(start)
log.Printf("wr/s = %d", time.Duration(len(buf))*loop*time.Second/dt)
}
}
func main() {
a, err := avt414.Open("/dev/ttyUSB0")
if err != nil {
log.Fatal(err)
}
port := byte('D')
if err = a.Write(port, 0); err != nil {
log.Fatal(err)
}
if err = a.Setup(port, 0); err != nil {
log.Fatal(err)
}
var i byte
for {
if i == 0 {
i = 0x80
}
if err = a.Write(port, i); err != nil {
log.Fatal(err)
}
v, err := a.Read('B')
if err != nil {
log.Fatal(err)
}
a, err := a.ADC(0)
if err != nil {
log.Fatal(err)
}
log.Printf("%x, %.3f", v, 2.5*float32(a)/1023)
time.Sleep(100 * time.Millisecond)
i >>= 1
}
a.Close()
}