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# TinyEmbedded-Dual Low-cost Embedded Linux development board compatible with RISC-V D1s/F133 and ARM Cortex-A7 T113-S3 SoC. TODO ## About the SoC D1s/F133: Single-Core RISC-V 64 @ 1.0G with in package 64MB DDR2\ T113-S3: Dual-Core ARM Cortex-A7 @ 1.2 GHz with in package 128MB DDR3 ## Feature TinyEmbedded-Dual is a low-cost embedded Linux development board compatible with ARM Cortex-A7 T113-S3 and RISC-V D1s/F133 SoC. Here are some highlights of this board: * On-board USB-to-UART serial debug console. * On-board LIS3DH acceleration sensor. * On-board Realtek RTL8188FTV Wi-Fi Module. * One USB Type-C port support USB2.0. * Three indicator LEDs for power status, UART data transmission, and user-defined purposes. * Two buttons for reset and user-defined purposes. * One MicroSD slot for storing the boot image. * One Serial NOR Flash connected to SPI0. * One 3.5mm headphone jack for audio output. ### Hardware Design #### Block Diagram #### Power Tree #### 3D Simulation #### Top View #### Download Schematic: [PDF](https://github.com/yuansco/TinyEmbedded-Dual/blob/main/Document/TinyEmbedded_Dual_A.pdf) BOM: [CSV](https://github.com/yuansco/TinyEmbedded-Dual/blob/main/Document/BOM.CSV) (TODO) Image: [IMG](https://github.com/yuansco/TinyEmbedded-Dual/blob/main/Images/sdcard.img) (TODO) ### Build an SD card image for booting TinyEmbedded-Dual ``` shell # Install development tools sudo apt install -y libssl-dev swig # Download TinyEmbedded-Dual BSP from https://github.com/yuansco/Buildroot-TinyEmbedded-Dual git clone https://github.com/yuansco/Buildroot-TinyEmbedded-Dual.git # Apply defconfig cd Buildroot-TinyEmbedded-Dual make tinyembedded_dual_defconfig # Build image make # Flash image into your SD card. You need to replace /dev/sdx with the actual drive letter. sudo dd if=./output/image/sdcard.img of=/dev/sdx bs=512 status=progress && sync ```

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