Bouffalolab bl_iot_sdk. Support BL602 Wi-Fi/BLE Combo RISC-V based Chip.
Check docs/html for more detail.
Fire an issue, if you have any issue or need any support.
In order to build one of the sample apps, you need to set a few environment
variables:
`
export BL60X_SDK_PATH=/path/to/this/repo
export CONFIG_CHIP_NAME=bl602
`
Then go to the sample directory of interest and call make, for example:
`
cd customer_app/bl602_boot2
make
`
There is a linker script (written in python) at image_conf/flash_build.py.
To run this, you need to specify the application and the target, for example:
`
python3 flash_build.py bl602_boot2 bl602
`
BL602 is a 32-bit RISC-V based combo chipset supporting Wi-Fi and BLE (Bluetooth Low Energy). The chip is made by Nanjing-based Bouffalo Lab for ultra-low-power applications. In terms of price range and feature set, the chip is competing against Espressif ESP8266
| Bouffalo Lab BL602 | Espressif ESP8266 | |
|---|---|---|
| Architecture | 32-bit RISC-V @192MHz (dynamic @1-192MHz) L1 cache FPU |
32-bit Xtensa @80MHz (and 160MHz) |
| Memory | 276KB SRAM 128KB ROM 1 Kb eFuse optional embdedded flash XIP QSPI flash support |
32 KiB instruction RAM 32 KiB instruction cache RAM 80 KiB user-data RAM 16 KiB ETS system-data RAM No programmable ROM QSPI flash support (up to 16 MB) |
| Wi-Fi | 802.11 b/g/n @2.4GHz WPS/WEP/WPA/WPA2/WPA3 |
802.11 b/g/n @2.4GHz WEP/WPA/WPA2 |
| Bluetooth | LE 5.0 | NONE |
| GPIO | x16 | x16 |
| SDIO | x1 2.0 slave | x1 v2.0 slave |
| SPI | x1 | x2 |
| UART | x2 | x1.5 (One Tx only) |
| I2C | x1 | x1 (software implemented) |
| I2S | NONE | x1 (with DMA) |
| PWM channels | x5 | x4 |
| ADC | 12-bit | 10-bit (SAR) |
| DAC | 10-bit | NONE |
| Analog Comparator | x2 | NONE |
| DMA | x4 | with I2S |
| Timer | RTC (up to 1 year) x2 32-bit general-purpose |
x1 hardware x1 software (no interrupt gen. on sw. timer) |
| IR Remote Control | x1 | x1 |
| Debug | JTAG support | ? |