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Friday, September 18th 2015, 7:12pm

Author: uLipe

Multiple file descriptors.

Hello Marius, thanks for the fast response. Okay, is a limitation, but In my version opens one file at time, but not two. So I´ll contact my purchasing dept. in order to resolve this licensing issue fast as possible. Best Regards. Felipe

Friday, September 11th 2015, 8:56pm

Author: uLipe

Multiple file descriptors.

Hello there, I having some troubles during my evaluation of emFile for LPC1788 chip. I´m implementing a system with make exaustive use of FS, and sometimes will have cases when multiple files are open (so, multiple file descriptors), so when I try to open two or more different files without a call of FS_FClose(), only the first file is opened, all others file descriptors returns as a null pointers. for exemple: C/C++ Source code 1 2 3 4 5 FS_FILE *fp1, *fp2, *fp3; fp1 = FS_FOpen("blablabla1.txt"...

Thursday, June 18th 2015, 7:28pm

Author: uLipe

USBH Stopped to work

Yan, thanks for response, I fixed up the problem. Two issues was causing, the first the my USB Hal was not correctly configured. Second, I out application we use two devices on file system, and the other device (the SDCard) used the same AHB memory bank of USB, causing corruption of both devices file system. So the solution was create a memory pool used by SDCard Hal in a region outside of USB AHB RAM and now all is working fine. Thanks again for help. Felipe

Wednesday, May 27th 2015, 9:27pm

Author: uLipe

USBH Stopped to work

Hello, I´m currently back to working on USB Host firmware, after to perform the initalizations according user guide so: - call USBH_Init(); - install usbh task and isr - call FS_Init(); - call USBH_MSD_Init() Then I try to plug a flash drive in USB connector and set a breakpoint on device insertion callback function, but the program don´t reach here, apparently the code is the same, I´m using the BSP supplied by segger. What I am missing to get the USB Host to work? Regards. Felipe

Friday, April 10th 2015, 4:09pm

Author: uLipe

USBH_MSD Class code memory consumption

Hello, I'm currently working on a firmware which uses the USBH host stack, precisely is the MSD class, the code is working very well, but according Segger emUSBH Manual (2014, page 284) the code memory consumption is about 20K for USBH plus driver, and adds 8K + sizeof file systems (in my app about 27K), but when I check the map file, the USBH lib has a total code memory usage about 128KB. My question is, what is the build or USB config to achieve the numbers presented on user guide? My developm...