Bouffalo Lab BL808

Bouffalo Lab BL808 is a 64-bit / 32-bit RISC-V SoC with 3 RISC-V Cores:

**D0 Multimedia Core:** T-Head C906 480 MHz 64-bit RISC-V CPU

:   -   RV64IMAFCV
    -   Level 1 Instruction and Data Cache (Harvard architecture)
    -   Sv39 Memory Management Unit
    -   jTLB (128 entries)
    -   AXI 4.0 128-bit master interface
    -   Core Local Interrupt (CLINT) and Platform-Level Interrupt
        Controller (PLIC)
    -   80 External Interrupt Sources
    -   BHT (8K) and BTB
    -   RISC-V PMP (8 configurable areas)

**M0 Wireless Core:** T-Head E907 320 MHz 32-bit RISC-V CPU

:   -   RV32IMAFCP
    -   32-bit / 16-bit Mixed Instruction Set
    -   RISC-V Machine Mode and User Mode
    -   32 x 32-bit Integer General Purpose Registers (GPR)
    -   32 x 32-bit / 64-bit Floating-Point GPRs
    -   AXI 4.0 main device interface and AHB 5.0 peripheral
        interface
    -   Instruction and Data Cache

**LP Low Power Core:** T-Head E902 150 MHz 32-bit RISC-V CPU

:   -   RV32E\[M\]C

• RAM: Embedded 64 MB PSRAM

• Wireless: 2.4 GHz 1T1R WiFi 802.11 b/g/n, Bluetooth 5.2, Zigbee

• Ethernet: 10 / 100 Mbps

• USB: USB 2.0 OTG

• Audio: Microphone and Speaker

• Video Input: Dual-lane MIPI CSI

• Peripherals: UART, SPI, I2C, PWM, SDH, EMAC, USB

Peripheral Support

The following list indicates the state of peripherals' support in NuttX:

+-----------------------------+-----------------------------+-------+ | Peripheral | Support | NOTES | +=============================+=============================+=======+ | GPDAC DMA EMAC GPADC GPIO | > No No No Yes Yes Yes No | | | I2C I2S PWM SPI Timers UART | > No Yes Yes Yes No Yes | | | USB Watchdogs | | | +-----------------------------+-----------------------------+-------+

Supported Boards

boards//