chaoran zhang

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Question asked: Multiple blocks write for USBMSD_SD?: I'm trying to implement a multiple blocks write for USBMSD only used for SD card. …
chaoran zhang - 18 Mar 2013
Question Why wait() is not working? marked as solved by answer: I just tested it by setting the sclk output to a LED and watching it …
chaoran zhang - 31 Jan 2013
Question Why wait() is not working? marked as solved by answer: This is the signal detected by my my logic analyser: {{/media/uploads/emilmont/wait.png}} I second Erik's hypothesis …
chaoran zhang - 31 Jan 2013
Question asked: Why wait() is not working?: Here is a simple code: <> #include "mbed.h" DigitalOut sclk(p6); int main() { while(1) { …
chaoran zhang - 28 Jan 2013
New topic Bit Banging SPI in SD Filesystem - After figure out how SPI working, I decided to build one in software(just for learning …
chaoran zhang - 26 Jan 2013
Question asked: Why file's Blocks size > file's actual size: I'm writing data into SD card,I found out that the total blocks transferred in turn …
chaoran zhang - 02 Dec 2012
New topic Source code of SPI - I'm a beginner and just learned how SPI works from documentation. Is the source code …
chaoran zhang - 19 Oct 2012
Reply to Is it possible to implement SD mode on Mbed for better SD card reading performance? - Lexington B.C. wrote: I belive that the 4 bit mode is propriatry, which means it …
chaoran zhang - 05 Oct 2012
New topic Is it possible to implement SD mode on Mbed for better SD card reading performance? - I'm a beginner in Mbed. Right now I have a SD card connected with Mbed …
chaoran zhang - 05 Oct 2012