General Android Peripheral (KL25Z) tested
Last year I started to develop a General Android Peripheral platform with Freescale's first Kinetis L micro MKL25Z128VLK4. When I present it on Design Shanghai 2013, its hardware is under development, which you can reveal on above picture. History It was inspirited from IOIO design and ADK for its ADB/ADK/AOA conception. However, since MKL25Z is quite different from Microchip and Atmel's micro, I developed the code on FSL's USB stack, and reference some code from Arduino UHS (USB host shield). Roadblock As a software engineer, the roadblock for this project is hardware design and assembly. The code runs well on FRDM-KL25Z with my custom host port. (Yep, I modified the port hardware to enable its host feature on board.) However, I can not solder the samples since 0.5mm pitch QFP80 is difficult to me. I got them soldered with my friends, but all of these boards can not be accessed by any of my debuggers. And I found 125 KHz output from its reset pin. Check the...