Product: JDS Labs Atom DAC+ Firmware: v2.1.0 Filename: atom_dac_plus_v2.1.0-upgrade.bin MD5 hash: 62e7ce5dae3ad475e02386b53fb9603d Filename: atom_dac_plus_nosleep_v2.1.0-upgrade.bin MD5 hash: 4eb6414f932d80b2d96f9062c85931a4 # GENERAL INFORMATION - A direct connection to a USB 2.0/3.0 port is required. USB hubs and some Type C or USB 3.1 ports may prevent DFU communication. - Only connect one (1) JDS Labs DAC at a time. - Atom DAC+ will automatically restart upon completion. In the rare event that an update fails, it is safe to power cycle your Atom DAC+. The DAC will fallback to previous firmware. # WARNING The Device Firmware Update (DFU) tools only check for a valid JDS Labs USB Vendor and Product ID before loading firmware to your DAC. The update tools do *not* check the .bin file you supply, nor can they check that the DAC matches the .bin file you provide. Thus, please triple check that you are loading the right firmware for the right model! If you accidentally load firmware for the wrong JDS Labs DAC, you can likely recover by flashing the intended firmware. If not, please reach out to jdslabs.com/support # WINDOWS 10/11 INSTALLATION Please use the latest XMOS Driver and XMOS Firmware Update Utility (DFU) found at: https://jdslabs.com/support/drivers/ # MAC OR LINUX INSTALLATION Please refer to: https://github.com/jdslabs/xmos_dfu Additional detail and installation guidance for all operating systems can be found at: https://blog.jdslabs.com/2020/08/custom-firmware-builds-for-element-ii-el-dac-ii-and-atom-dac/#installation-info # CHANGELOG ## v2.1.0 * Updated core XUD, USB, and I2C libraries * Move to RAM based-settings developed for Element III * Enforce de-emphasis OFF in USB mode, and Auto de-emphasis in S/PDIF mode * Improved error handling when USB Host is in standby * Instant mode switching between USB & S/PDIF: Eliminated LED toggling and 2s delay * Changed auto standby timeout from 15min to 5min. Use optional 'atom_dac_plus_nosleep_v2.1.0' build to disable standby. * Changed default DPLL from 5 to 7 to improve general compatibility with 4k TVs * Improved UAC1 Descriptors to support Nintendo Switch * Disable operating system volume controls by default: Support PS4/PS5 ## 1.8.A: Force UAC1 16-bit mode for Nintendo Switch ## 1.8.9: Added DSD/DoP support and DSD L/R assignments. Mute for 2ms upon MCLK changes. ## 1.8.6: Enabled auto de-emphasis flag for S/PDIF input ## 1.8.5: UAC1 Only mode ## 1.8.4: PS4/PS5 support -UAC2 w/ auto UAC1 fallback ## 1.8.2: Initial release