Hi all,
Below is a very simple and straight forward flash Read/write code, The
Red Led is toggling indicating that the data has been written
correctly. However Im not able to read back the data correctly ( The
yellow Led is not glowing).
P.S. 1. The flash has been formatted using
/opt/tinyos1.x/apps/TestDeluge/formatflash
2. The volume is getting correctly mounted ( checked with an LED)
Here is the code
**************************configuration file*************************
includes Storage;
configuration FlashCheck{}
implementation{
components Main,FlashCheckM,BlockStorageC,LedsC;
Main.StdControl->FlashCheckM;
FlashCheckM.Leds->LedsC;
FlashCheckM.Mount->BlockStorageC.Mount[ unique("StorageManager")];
FlashCheckM.BlockRead->BlockStorageC.BlockRead[
unique("StorageManager")];
FlashCheckM.BlockWrite->BlockStorageC.BlockWrite[unique("StorageManager")];
}
****************************** Module*******************************
module FlashCheckM{
provides interface StdControl;
uses{
interface Leds;
interface Mount;
interface BlockRead;
interface BlockWrite;
}
}
implementation{
block_addr_t addr = 0x00;
block_addr_t length = 10;
uint8_t temp = 0xA0;
uint8_t DataWriteBuf[10];
uint8_t DataReadBuf[10];
uint8_t i;
bool DATA_OK=FALSE;
task void FlashWriteTask(){
for(i=0;i<10;i++)
DataWriteBuf[i] = temp++;
call BlockWrite.write(addr,&DataWriteBuf[0],length);
}
task void FlashReadTask(){
call BlockRead.read(addr,&DataReadBuf[0],length);
}
command result_t StdControl.init(){
call Leds.init();
return SUCCESS;
}
command result_t StdControl.start(){
call Mount.mount(0xd1);
return SUCCESS;
}
command result_t StdControl.stop(){
return SUCCESS;
}
event void BlockWrite.writeDone(storage_result_t result, block_addr_t
address, void* buf, block_addr_t len){
if(result==STORAGE_OK){
call Leds.redToggle();
}else{
call Leds.greenToggle();
}
call BlockWrite.commit();
}
event void BlockRead.readDone(storage_result_t results, block_addr_t
x, void* buf, block_addr_t rlen){
if(results == STORAGE_OK){
temp = 0xA0;
for(i=0;i<10;i++){
if(DataReadBuf[0]==temp++)
DATA_OK = TRUE;
}
if(DATA_OK==TRUE)
call Leds.yellowToggle();
}
}
event void Mount.mountDone(storage_result_t result, volume_id_t id) {
if(result==STORAGE_OK){
post FlashWriteTask();
}
}
event void BlockRead.verifyDone(storage_result_t result){
post FlashReadTask();
}
event void BlockRead.computeCrcDone(storage_result_t result, uint16_t
crc, block_addr_t address, block_addr_t len){}
event void BlockWrite.eraseDone(storage_result_t result){
}
event void BlockWrite.commitDone(storage_result_t result){
call BlockRead.verify();
}
}
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