After the guidance of WCH technicians, I found the problem in my program. The I2C devices used in my program were inconsistent. I uploaded the correct file at the end of the article for your reference
I recently wanted to use Jlink to connect to S5P4418 and play bare metal programming, but I found that Jlink could not connect to the CPU, as shown in the figure. I asked netizens to help me write a J
[align=left][color=rgb(85, 85, 85)][font="][size=4]Using the hardware accelerator to calculate 128-point fft, the data was wrong at the beginning. After many attempts, it was finally successful under
[i=s]This post was last edited by alan000345 on 2019-5-7 11:11[/i] Higher data rates, more antennas, less space. Antenna efficiency plays a critical role in the overall RF performance of smartphones.