Hi cherno, can you try this version (with 16mb buffer size):

download.cloudmakers.eu/atikccd-1.3-i386.deb
download.cloudmakers.eu/atikccd-1.3-i386.rpm
download.cloudmakers.eu/atikccd-1.3-amd64.deb
download.cloudmakers.eu/atikccd-1.3-amd64.rpm

Thank you, Peter

Perfect!
The horizontal line is gone.

You've done a great job.
Thank you very much!
cherno

Sorry to say. The horizontal line is back at row 1527. I made one hundred new bias frames with atikccd-1.15-i386.deb on my Arch laptop and find the horizontal line in mean bias frames, and mean darks independent of exposure time. The line is completely removed with bias subtraction.
The horizontal line was absend in 1.3.
Who done it?
cherno

Strange, there is 8MB buffer again and I can't find any tracks that it was bigger in 1.3... Nevertheless, I increased it to 24MB, can you try version 1.16? Peter

The horizontal line is gone.
Thank you!

cherno

I tried 1.16 and the download problem came back... EKOS just keep "Downloading...." and does not move after the capture is done on the 1st frame

The only change between 1.15 and 1.16 is the chunk size. What platform is it? Peter

pi3 ubuntu.. arm

output of atik_ccd_test

ubuntu@ubuntu-standard:~$ atik_ccd_test

version 1.16

list

---

-> AtikCamera::list(...)
'Atik 490ex' [0x20e7, 0xdf3a] found...
-> AtikCameraImpl::AtikCameraImpl(..., Atik 490ex, 2)
maxPacketSize = 25165824
<- AtikCameraImpl::AtikCameraImpl
<- AtikCamera::list 1

open Atik 490ex

---

-> AtikCameraImpl::open()
libusb_claim_interface() -> LIBUSB_SUCCESS / LIBUSB_TRANSFER_COMPLETED
libusb_set_interface_alt_setting() -> LIBUSB_SUCCESS / LIBUSB_TRANSFER_COMPLETED
-> AtikCameraImpl::writeFW()
cpu stopped 1
cpu started 1
<- AtikCameraImpl::writeFW 1
-> AtikCameraImpl::setPortDirection(0, 0x9f)
<- AtikCameraImpl::setPortDirection 1
-> AtikCameraImpl::setPortState(0, 0x80)
<- AtikCameraImpl::setPortState 1
-> AtikCameraImpl::i2cSetTimeout(50)
<- AtikCameraImpl::i2cSetTimeout 1
-> AtikCameraImpl::setParTimeout(50)
<- AtikCameraImpl::setParTimeout 1
-> AtikCameraImpl::i2cSetSpeed(0)
<- AtikCameraImpl::i2cSetSpeed 1
-> AtikCameraImpl::flush()
libusb_bulk_transfer -> LIBUSB_ERROR_TIMEOUT
0 bytes flushed
<- AtikCameraImpl::flush
-> AtikCameraImpl::i2cSetTimeout(5000)
<- AtikCameraImpl::i2cSetTimeout 1
-> AtikCameraImpl::eepRead(3, ..., 2)
-> AtikCameraImpl::i2cWrite(81, [0x00 0x03], 2)
<- AtikCameraImpl::i2cWrite 1
-> AtikCameraImpl::i2cRead(81, ..., 2)
<- AtikCameraImpl::i2cRead 1 [0x3a 0xdf]
<- AtikCameraImpl::eepRead 1 [0x3a 0xdf]
-> AtikCameraImpl::eepRead(1000, ..., 5)
-> AtikCameraImpl::i2cWrite(81, [0x00 0xe8], 2)
<- AtikCameraImpl::i2cWrite 1
-> AtikCameraImpl::i2cRead(81, ..., 5)
<- AtikCameraImpl::i2cRead 1 [0xff 0xff 0xff 0xff...]
<- AtikCameraImpl::eepRead 1 [0xff 0xff 0xff 0xff...]
colour = 1, offsetX = 0, offsetY = 0
pid = df3a
-> AtikCameraImpl::i2cSetTimeout(100)
<- AtikCameraImpl::i2cSetTimeout 1
-> AtikCameraImpl::setParTimeout(1000)
<- AtikCameraImpl::setParTimeout 1
-> AtikCameraImpl::parInit(9)
-> AtikCameraImpl::parInit(...)
<- AtikCameraImpl::parInit 1
<- AtikCameraImpl::parInit 1
-> AtikCameraImpl::ping()
ping -> 100
-> AtikCameraImpl::sendCommand(80, [0x64], ..., 1, 0)
<- AtikCameraImpl::sendCommand 1 NULL
ping <- 101
<- AtikCameraImpl::ping 1
-> AtikCameraImpl::sendCommand(1, NULL, ..., 0, 0)
<- AtikCameraImpl::sendCommand 1 NULL
version: 3.37
model: ATIK-490ex
manufacturer: ARTEMIS CCD
flags: 0x158 PREVIEW SUBSAMPLE OVERLAP
pixel count: 3380 x 2704
pixel size: 3.7 x 3.7
max bin: 255 x 255
well capacity: 60
-> AtikCameraImpl::appInit()
-> AtikCameraImpl::sendCommand(44, NULL, ..., 0, 0)
<- AtikCameraImpl::sendCommand 1 NULL

---

DEBUG OFF

---

---

DEBUG ON

---

APPINIT completed
<- AtikCameraImpl::appInit 1
-> AtikCameraImpl::sendCommand(54, NULL, ..., 0, 2)
<- AtikCameraImpl::sendCommand 1 [0x01 0x00]
temperature sensor count: 1
-> AtikCameraImpl::getTemperatureSensorStatus(1, ...)
lock()
-> AtikCameraImpl::sendCommand(55, [0x01 0x00], ..., 2, 6)
<- AtikCameraImpl::sendCommand 1 [0x02 0x00 0x00 0x00...]
unlock()
<- AtikCameraImpl::getTemperatureSensorStatus 1
temperature sensor type: 2
-> AtikCameraImpl::sendCommand(52, NULL, ..., 0, 6)
<- AtikCameraImpl::sendCommand 1 [0x1f 0x00 0xff 0x00...]
cooler: COOLER_SETPOINT
min cooler power: 0
max cooler power: 255
-> AtikCameraImpl::eepRead(5, ..., 2)
-> AtikCameraImpl::i2cWrite(81, [0x00 0x05], 2)
<- AtikCameraImpl::i2cWrite 1
-> AtikCameraImpl::i2cRead(81, ..., 2)
<- AtikCameraImpl::i2cRead 1 [0x93 0x7e]
<- AtikCameraImpl::eepRead 1 [0x93 0x7e]
-> AtikCameraImpl::eepRead(8, ..., 2)
-> AtikCameraImpl::i2cWrite(81, [0x00 0x08], 2)
<- AtikCameraImpl::i2cWrite 1
-> AtikCameraImpl::i2cRead(81, ..., 2)
<- AtikCameraImpl::i2cRead 1 [0x4f 0x5b]
<- AtikCameraImpl::eepRead 1 [0x4f 0x5b]
serial # 1531936403
-> AtikCameraImpl::i2cSetTimeout(200)
<- AtikCameraImpl::i2cSetTimeout 1
-> AtikCameraImpl::setParTimeout(2000)
<- AtikCameraImpl::setParTimeout 1
<- AtikCameraImpl::open 1

getCapabilities

---

-> AtikCameraImpl::getCapabilities(...)
<- AtikCameraImpl::getCapabilities 1

setPreviewMode

---

-> AtikCameraImpl::setPreviewMode(0)
not changed
<- AtikCameraImpl::setPreviewMode 1

set8BitMode

---

-> AtikCameraImpl::set8BitMode(0)
<- AtikCameraImpl::set8BitMode 1

getTemperatureSensorStatus

---

-> AtikCameraImpl::getTemperatureSensorStatus(1, ...)
lock()
-> AtikCameraImpl::sendCommand(55, [0x01 0x00], ..., 2, 6)
<- AtikCameraImpl::sendCommand 1 [0x02 0x00 0xa3 0x03...]
current temperature: 15.0
unlock()
<- AtikCameraImpl::getTemperatureSensorStatus 1

getCoolingStatus

---

-> AtikCameraImpl::getCoolingStatus(...)
lock()
-> AtikCameraImpl::sendCommand(53, NULL, ..., 0, 6)
<- AtikCameraImpl::sendCommand 1 [0x00 0x00 0x1f 0x00...]
cooler state: COOLING_INACTIVE
target temperature: -60.0
power: 0%
unlock()
<- AtikCameraImpl::getCoolingStatus 1

setCooling

---

-> atikSetCooling(-10.0)
lock()
-> AtikCameraImpl::sendCommand(56, [0x6c 0x02], ..., 2, 2)
<- AtikCameraImpl::sendCommand 1 [0x01 0x00]
unlock()
<- AtikCameraImpl::setCooling 1

getCoolingStatus

---

-> AtikCameraImpl::getCoolingStatus(...)
lock()
-> AtikCameraImpl::sendCommand(53, NULL, ..., 0, 6)
<- AtikCameraImpl::sendCommand 1 [0x00 0x00 0xdf 0x00...]
cooler state: COOLING_SETPOINT
target temperature: -10.0
power: 0%
unlock()
<- AtikCameraImpl::getCoolingStatus 1

initiateWarmUp

---

-> AtikCameraImpl::initiateWarmUp()
lock()
-> AtikCameraImpl::sendCommand(57, NULL, ..., 0, 0)
<- AtikCameraImpl::sendCommand 1 NULL
unlock()
<- AtikCameraImpl::initiateWarmUp 1

getCoolingStatus

---

-> AtikCameraImpl::getCoolingStatus(...)
lock()
-> AtikCameraImpl::sendCommand(53, NULL, ..., 0, 6)
<- AtikCameraImpl::sendCommand 1 [0xf4 0x00 0x7f 0x00...]
cooler state: WARMING_UP
target temperature: -10.0
power: 95%
unlock()
<- AtikCameraImpl::getCoolingStatus 1

readCCD (short)

---

3380x2704 rounded to 3380x2704

-> AtikCameraImpl::readCCD(0, 0, 3380, 2704, 1, 1, 0.500000)
lock()
-> AtikCameraImpl::setParTimeout(30000)
<- AtikCameraImpl::setParTimeout 1
-> AtikCameraImpl::sendCommand(2, [0x00 0x00], ..., 2, 0)
<- AtikCameraImpl::sendCommand 1 NULL
-> AtikCameraImpl::sendCommand(4, NULL, ..., 0, 0)
<- AtikCameraImpl::sendCommand 1 NULL
-> AtikCameraImpl::sendCommand(5, NULL, ..., 0, 0)
<- AtikCameraImpl::sendCommand 1 NULL
-> AtikCameraImpl::sendCommand(6, [0xf4 0x01 0x01 0x00...], ..., 16, 0)
<- AtikCameraImpl::sendCommand 1 NULL
<- AtikCameraImpl::readCCD 1

getImage

---

-> AtikCameraImpl::getImage(..., 9139520)
libusb_bulk_transfer -> LIBUSB_ERROR_IO
elapsed 0.101154 s
-> AtikCameraImpl::setParTimeout(1000)
<- AtikCameraImpl::setParTimeout 1
unlock()
<- AtikCameraImpl::getImage 0 [0x00 0x00 0x00 0x00...]

close

---

-> AtikCameraImpl::close()
<- AtikCameraImpl::close

Atik 490ex test failed: Failed to get image
ubuntu@ubuntu-standard:~$

OK, thank you. It looks, that 24MB is too much for such device. So pls. for RPi use version 1.15 and for real PC version 1.16. Buffer size is the only difference. I'll make it platform dependent in next version. Peter

Noticed this same issue with 383L+ and RPi3, downloads don't complete. Also I've recently had quite a few light and flat frames that look very much like dark frames, ie. the shutter hasn't opened at all it seems. Otherwise 1.15 has worked quite well.

Hi, pls. can you try version 1.17?

www.cloudmakers.eu/atikdrivers/

Packet size is 24MB on Intel and 8MB on Arm.

Peter