WangHuiShou的博客

kernel logo之PPM图片转换一、将png图片改成.ppm格式。如linux_logo.png ①将png图片转成pnmpngtopnmlinux_logo.png > linux_logo.pnm ②将pnm图片的颜色数限制在224色pnmquant224 linux_logo.pnm > logo_clut2...

由上图可知：CLKINP = 24MHzREFCLK = CLKINP/(N+1)fDPLL = CLKDCOLDO = 2 * [M / (N+1)] * CLKINPCLKDCOLDO: Oscillator (DCO) output clock with no bypassCLKOUT = [M / (N+1)] * CLKINP * [1/M2] = CLKDCOL...