This warranty is valid only for so long as the product is used intact as shipped from PI 2 Design. Any attempt or effort to alter the Product, including but not limited to any attempt to solder, de-solder, unplug, replace, add or affix any part or component of...
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 2 2 2 2 OPERATING OPERATING OPERATING S S S S PECIFICATIONS OPERATING PECIFICATIONS PECIFICATIONS PECIFICATIONS 2.1 PI2AES-LITE OPERATING SPECIFICATIONS The PI2AES-LITE conforms to the following specifications: Specification...
OVERVIEW 3.1 INTRODUCTION The PI2AES-LITE , designed and manufactured by PI 2 Design, is a professional I/O Shield designed to bring Professional Studio Grade Audio to the Raspberry PI ® family of Single Board Computers. This low-cost Shield converts the Raspberry Pi ® I2S Interface to High Definition Digital Audio Coax, SPDIF Coax and Toslink Optical.
PI2AES-LITE . 4.1 PI2AES-LITE I2C BUS DEVICES The following table describes the CPU I2C Bus usage of the PI2AES-LITE . Most of these addresses are set by the startup script supplied by Pi2Design. Refer to the respective device documentation for more detail.
1. The WM8804 is controlled using the I2C port. Refer to the WM8804 documentation and Pi 2 Design supplied driver code for more detail. 2. The PI2AES-LITE is designed to operate the WM8804 in Master mode. In this mode the WM8804 receives its master clock from XIN and drives MCLK (unused), BCLK and LRCLK to the Pi.
5 5 5 5 RPI RPI GPIO GPIO GPIO GPIO 5.1 OVERVIEW The PI2AES-LITE uses a number of signals from the RPi GPIO header for control and status purposes. This usage is defined in the following table. PUP/ PI2AES- Description/Notes LITE Name RPi +3.3V - Unused...
6 6 6 6 PI2AES PI2AES PI2AES- - - - LITE PI2AES LITE LITE POWER LITE POWER POWER POWER 6.1 OVERVIEW The PI2AES-LITE is designed to be powered from the Raspberry PI 5V GPIO Pins 2 and 4. PAGE 11...
SOFTWARE 7.1 OVERVIEW Due to the various resources interfaced on the PI2AES-LITE , both internal and external to the RPi, it is necessary to initialize a large number of CPU registers and external devices before correct operation can begin. These values and their proper sequencing are beyond the scope of this document.
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 8 8 8 8 CONNECTORS CONNECTORS CONNECTORS CONNECTORS 8.1 OVERVIEW This section provides the type and location of the connectors on the PI2AES-LITE . Table 5 – PI2AES-LITE Connector Locations PAGE 13...
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 10 10 10 10 ERRATA ERRATA ERRATA ERRATA 10.1 OVERVIEW The External 5V Option has been removed due to voltage drop issues. There is currently no plan to fix.
CASE ASSEMBLY CASE ASSEMBLY 11.1 OVERVIEW This section describes the Acrylic case included with the PI2AES-LITE and how to assemble it for the PI 3 or PI 4. 11.2 PART DESCRIPTIONS The acrylic case itself consist of 6 panels referred to as Bottom, Right, Left, Rear, Front and Top.
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 FRONT REAR LEFT RIGHT M2.5 30MM 18MM SCREW BOTTOM Figure 2 - PI2AES-LITE Acrylic Case Parts PAGE 17...
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 11.3 ASSEMBLY STEP 1 Attach the 30mm F-F standoffs to the PI using the 6mm M-F to hold them as shown in the following picture. PAGE 18...
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 11.4 ASSEMBLY STEP 2 Attach the bottom panel to the 6mm M-F standoffs as shown in the following picture. Note the orientation of the SD Card cutout. PAGE 19...
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 11.5 ASSEMBLY STEP 3 Attach the PI2AES-LITE to the Raspberry Pi as shown in the following picture. PAGE 20...
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 11.6 ASSEMBLY STEP 4 Place the various side panels into the respective bottom panel slots as shown in the following pictures. Note that there are two left side panels (with HDMI) and two front side panels (USB), one pair each for the PI3 and PI4.
Pi 2 Design – PI2AES-LITE Hardware Reference Manual – P2.0 - 12/8/2022 11.7 ASSEMBLY STEP 5 Capture the side panels using the top panel and screw into place using 4 m2.5x6mm screws. Note the orientation of the cutout for the optical jack.
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