BPI-D1 development docment download

BPI-D1 development docment,this from AK chip company, only chinese PDF version, but all function define are is clear . maybe easy to read . hope can help you.

https://drive.google.com/folderview?id=0B4PAo2nW2KfnfkVPUFZIb1E1LTFDUDUtRFhpRFJZR2RYUkNjS0NhOFdPTmVEZUFVMjhRbm8&usp=sharing