That really helped. Thanks!!
On Tue, Feb 24, 2009 at 2:33 PM, Chieh-Jan (Mike) Liang
<[email protected]>wrote:
> Try erase the volume first.
>
> Mike
>
>
> On Feb 24, 2009, at 12:13 PM, Parkurm wrote:
>
> Hi, I think I'm experiencing problem in LogWrite. When I try
>> LogWrite.append, when it signals appendDone, the error_t result is always
>> FAIL. Can anybody point out the possible reasons for a failure in appendDone
>> event?
>>
>> Here is my source code. When I run it (with the mote connected to the
>> programming board), I get printout like the following:
>> "Sensed data 31,writing to log..not busy, so we can write..appending
>> log..append failed, buf is original, len=0,err=FAIL"
>>
>>
>> #include "Log.h"
>> #include "printf.h"
>> module MyLogWriteP {
>> uses {
>> interface Boot;
>> interface Leds;
>> interface LogWrite;
>> interface Timer<TMilli>;
>> interface Read<uint16_t>;
>> }
>> }
>> implementation {
>>
>> enum {
>> SENSE_INTERVAL = 2000
>> };
>> typedef nx_struct logentry_t {
>> nx_uint16_t data;
>> } logentry_t;
>>
>>
>> bool m_busy = FALSE;
>> logentry_t m_entry;
>>
>> event void Boot.booted() {
>> call Timer.startPeriodic(SENSE_INTERVAL);
>> }
>>
>>
>>
>> event void Timer.fired() {
>> call Leds.led0On();//start sensing
>> call Read.read();
>> }
>> event void Read.readDone(error_t result,uint16_t data) {
>> call Leds.led0Off();//end sensing
>> if (result==SUCCESS) {
>> printf("Sensed data %d,writing to log..",data);
>> m_entry.data=data;
>> if (!m_busy) {
>> m_busy=TRUE;
>> printf("not busy, so we can write..");
>> call Leds.led1On();//start logging
>> if (call LogWrite.append(&m_entry,sizeof(m_entry))!=SUCCESS) {
>> m_busy=FALSE;
>> printf("Failed to initiate append log\n");
>> call Leds.led1Off();//log failure
>> }
>> else {
>> printf("appending log..");
>> }
>> }
>> else {
>> printf("busy, so this data is abandoned\n");
>> }
>> }
>> }
>>
>> event void LogWrite.eraseDone(error_t err) {
>> printf("Errase Done\n");
>> }
>> event void LogWrite.appendDone(void* buf, storage_len_t len,
>> bool recordsLost, error_t err) {
>> if (err==SUCCESS) {
>> printf("append success!\n");
>> call Leds.led2Toggle();
>> }
>> else {
>>
>> printf("append failed, ");
>> printf("buf %s original, ",buf==&m_entry?"is":"is not");
>> printf("len=%d,",len);
>> if(err==ESIZE)
>> printf("err=ESIZE\n");
>> if(err==FAIL)
>> printf("err=FAIL\n");
>> else
>> printf("err unknown\n");
>> }
>> call Leds.led1Off();
>> m_busy=FALSE;
>> }
>>
>> event void LogWrite.syncDone(error_t err) {
>> printf("Does anything happen here?\n");
>> }
>>
>> }
>>
>> _______________________________________________
>> Tinyos-help mailing list
>> [email protected]
>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>>
>
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