*This instruction is about how to upgrade the sCLK-EX firmware. *The example in this instruction uses the sCLK-EX installed into the tX-USBultra. *Request the firmware before following this instruction, it costs money. To request the firmware, provide us the serial number of your sCLK-EX and which frequencies you want to add or edit. *Refer to the video for better understanding about the procedure, http://sotmaudio.myds.me:5000/sharing/siRukteb3 ====== How to upgrade the sCLK-EX firmware ====== 1. Download the firmware designed as per your request in your PC. 2. Download and install Atmel Flip software, [[https://www.microchip.com/en-us/development-tool/flip]]. 3. Prepare the proper cable to be connected to the red box position on the sCLK-EX. {{ ::sclk-ex_fw_upgrade_pin.png?600 |}} The following image is the pin map to make the proper cable, and refer to the connector part numbers, * PCB connector part number : 53398-0471 * Cable connector part number : 51021-0400 * Crimp terminal : 50058-8100 {{ ::sclk-ex_cable_pin_map.png?600 |}} And connect the cable from the PC’s USB port to the red position on the sCLK-EX. 4. Please power on the tX-USBultra. (If you have the sCLK-EX installed in the PC, do not use the PC's power for the firmware upgrade, please use the separate soley power to the sCLK-EX instead.) 5. Please run Atmel Flip program and click the green marked icon and open the device selection->Atmega8U2->Ok. {{ ::atmel_flip_1.jpg?600 |}} 6. And click the red marked icon, select USB-> USB Port Connection->Open. {{ ::atmel_flip_2.jpg?600 |}} 7. Please click ‘file’ menu and enter ‘Load HEX file’ and select the downloaded F/W file and click ‘OK’ button to load F/W file and Run. 8. The Programming status will be shown as following image. {{ ::atmel_flip_3.jpg?600 |}} 9. Once F/W programming is completed well, ‘Verify Pass’ comment will be shown as the below image. {{ ::atmel_flip_4.jpg?600 |}} 10. Please exit Flip program and power off and on the tX-USBultra.