1.最近很闲，各位遇到什么开发方面的问题可以一起探讨、交流。

2.有关硬件设计、原理、可靠性、EMC/EMI方面的问题。

3.MCU(M0/M3/M4)\ARM9  A8  A9  A15 , TI  dsp C2000  C6000 , Altera FPGA(cpld  max10, cyclone III , cycloneIV )之类的硬件问题。

4.有关电源、信号完整性之类的。DDR  DDR2  DDR3走线什么的。BGA布线。

5.由于有空，有关硬件方面的我尽量做到有问必答，软件方面我只懂一点点。

拿MPS的MP1470为例，规格书中明确说了以下四条规则，严格遵循即可：

1) Keep the connection between the input ground and GND pin as short and wide as

possible.

2) Keep the connection between the input capacitor and IN pin as short and wide as possible.

3) Use short and direct feedback connections.Place the feedback resistors and compensation components as close to the chip as possible.

4) Route SW away from sensitive analog areas such as FB.