On Tue, Jan 1, 2013 at 1:02 AM, Avishay Meron <[email protected] > wrote:
> Great. 10x. > 10X ? No sure what you are talking about. > What exactly do you need? > I don't know how your h/w is configured. Which SPI is the SD hooked to? I use the new chips which use the x5 UCSI h/w. Shimmer uses if memory serves the msp430f1611 which uses the older USART h/w. Which one? what mode? I'm assuming SPI. Is it off USART1? I assume USART0 is programmed as a UART for debug messages, console, dock, etc. You are not exactly making this easy for me to help you. > I'm using the TinyOS tree. No changes there... > There isn't just one TinyOS tree. So I have no idea what tree you are talking about. Are you using the 2.1.1 release code? Are you using the 2.1.2 release? Are you using code from the development trunk? I've reorganized, cleaned up, and generally mangled the msp430 core in tinyos. The reason was to add a basic structure to support the newer msp430 processors. An early version of this work came in with the 2.1.2 release. My follow on work supports the newer more capable x5 series (msp430f5438a, msp430f6437 etc. I spend most of my time on x5 parts. If you are using stock TinyOS, how do you build your system? What app do you build? Where is the SD driver? If I were to build my own copy, how do I do that? > > On Tue, Jan 1, 2013 at 10:57 AM, Eric Decker <[email protected]> wrote: > >> >> >> On Tue, Jan 1, 2013 at 12:51 AM, Avishay Meron < >> [email protected]> wrote: >> >>> Hi Eric. >>> Thank you very much for you quick response. >>> I guess I need to dig up. I'm using defaults... >>> Anyway, I assume the default configurations you refer to are not set to >>> about 20 times lower than max possible. >>> >> >> The key is to figure out exactly how the h/w is being programmed. >> >> If you send me a pointer to your tree I'd be happy to look. >> >> >>> 20 is the factor of improvement I'm looking for (at least!). >>> I hope I'm not chasing pavements here... >>> >> >> Not sure how one goes about chasing pavements :-) >> >> >>> >>> On Tue, Jan 1, 2013 at 5:32 AM, Eric Decker <[email protected]> wrote: >>> >>>> >>>> How fast are you clocking the 1611 cpu? >>>> >>>> How fast are you clocking the SPI feeding the SD card? >>>> >>>> That will tell you the max theoretical rate you can transfer data. >>>> >>>> The high data rates to the SD assume the parallel 4 bit wide SD >>>> protocol rather than the SPI single bit stream that is probably used on the >>>> Shimmer or on my cards. >>>> >>>> >>>> On Mon, Dec 31, 2012 at 2:55 PM, Avishay Meron < >>>> [email protected]> wrote: >>>> >>>>> Hi all. >>>>> Searching google and the mailing list, I haven't found an explicit >>>>> answer to my problem. Here goes: >>>>> I'm trying to test SD logging max write speed on a shimmer2r. I've >>>>> tried using the FatFS but got unsatisfying results. >>>>> So, I decided to write directly to the SD. Using a simple application >>>>> (see code below), I found that the max rate of SD writing is about 20kB/s. >>>>> Is that it? is this the maximum rate possible? I was hoping to get at >>>>> least >>>>> 0.5 or 1 MB/s. Any suggestions? >>>>> >>>>> Happy new year to you all... >>>>> >>>>> Here is my test code... >>>>> >>>>> -----------------TestSDP.nc------------------- >>>>> #include "TestSD.h" >>>>> >>>>> module TestSDP{ >>>>> uses{ >>>>> interface Leds; >>>>> interface Boot; >>>>> interface SD; >>>>> interface StdControl as SDStdControl; >>>>> } >>>>> } >>>>> >>>>> implementation{ >>>>> >>>>> uint8_t resetData[SECTOR_SIZE], dummyData[SECTOR_SIZE]; >>>>> int8_t data=0xff; >>>>> uint32_t beginSector=1000000, numOfIt=20000, currSector; >>>>> >>>>> //Using numOfIt=20000, it took the application 17 min and 47 sec >>>>> to run, >>>>> //from which 8 min and 51 sec to write dummyData. >>>>> //The rest of the time the application Formated the sectors. >>>>> //This means writing at about 20kB/s >>>>> >>>>> event void Boot.booted(){ >>>>> call Leds.led2Toggle(); >>>>> call SDStdControl.start(); >>>>> memset(resetData, 0, SECTOR_SIZE); >>>>> memset(dummyData, data, SECTOR_SIZE); >>>>> call Leds.led2Toggle(); >>>>> } >>>>> >>>>> void FormatSectors() >>>>> { >>>>> uint32_t i=0; >>>>> currSector=beginSector; >>>>> for (i=0; i<numOfIt; i++, currSector++) >>>>> { >>>>> call SD.writeBlock(currSector, resetData); >>>>> } >>>>> } >>>>> >>>>> void WriteDummyData() >>>>> { >>>>> uint32_t i=0; >>>>> currSector=beginSector; >>>>> for (i=0; i<numOfIt; i++, currSector++) >>>>> { >>>>> call SD.writeBlock(currSector, dummyData); >>>>> } >>>>> } >>>>> >>>>> async event void SD.available(){ >>>>> call Leds.led0Toggle(); >>>>> FormatSectors(); >>>>> call Leds.led0Toggle(); >>>>> call Leds.led1Toggle(); >>>>> WriteDummyData(); >>>>> call Leds.led1Toggle(); >>>>> call Leds.led2Toggle(); >>>>> } >>>>> >>>>> async event void SD.unavailable(){ >>>>> } >>>>> } >>>>> >>>>> -----------------TestSDC.nc------------------- >>>>> >>>>> configuration TestSDC{ >>>>> } >>>>> implementation{ >>>>> components MainC, LedsC, SDC, TestSDP as app; >>>>> app.Boot -> MainC.Boot; >>>>> app.Leds -> LedsC; >>>>> app.SD -> SDC; >>>>> app.SDStdControl -> SDC; >>>>> } >>>>> >>>>> -----------------TestSD.h------------------- >>>>> #ifndef TEST_SD_H >>>>> #define TEST_SD_H >>>>> #define SECTOR_SIZE 512 >>>>> #endif /* TEST_SD_H */ >>>>> >>>>> >>>>> Best >>>>> Avishay >>>>> >>>>> _______________________________________________ >>>>> Tinyos-help mailing list >>>>> [email protected] >>>>> >>>>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>>>> >>>> >>>> >>>> >>>> -- >>>> Eric B. Decker >>>> Senior (over 50 :-) Researcher >>>> >>>> >>> >>> >>> -- >>> Best >>> Avishay >>> >> >> >> >> -- >> Eric B. Decker >> Senior (over 50 :-) Researcher >> >> > > > -- > Best > Avishay > -- Eric B. Decker Senior (over 50 :-) Researcher
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