void telemErase(unsigned long numSamples) {
//dfmemEraseSectorsForSamples(numSamples, sizeof (telemU));
// TODO (apullin) : Add an explicit check to see if the number of saved
// samples will fit into memory!
LED_2 = 1;
unsigned int firstPageOfSector, i;
//avoid trivial case
if (numSamples == 0) {
return;
}
//Saves to dfmem will NOT overlap page boundaries, so we need to do this level by level:
unsigned int samplesPerPage = mem_geo.bytes_per_page / telemPacketSize; //round DOWN int division
unsigned int numPages = (numSamples + samplesPerPage - 1) / samplesPerPage; //round UP int division
unsigned int numSectors = (numPages + mem_geo.pages_per_sector - 1) / mem_geo.pages_per_sector;
//At this point, it is impossible for numSectors == 0
//Sector 0a and 0b will be erased together always, for simplicity
//Note that numSectors will be the actual number of sectors to erase,
// even though the sectors themselves are numbered starting at '0'
DisableIntT1;
dfmemEraseSector(0); //Erase Sector 0a
dfmemEraseSector(8); //Erase Sector 0b
//Start erasing the rest from Sector 1:
for (i = 1; i <= numSectors; i++) {
firstPageOfSector = mem_geo.pages_per_sector * i;
//hold off until dfmem is ready for secort erase command
//while (!dfmemIsReady());
//LED should blink indicating progress
LED_2 = ~LED_2;
//Send actual erase command
dfmemEraseSector(firstPageOfSector);
}
EnableIntT1;
//Leadout flash, should blink faster than above, indicating the last sector
//while (!dfmemIsReady()) {
// LED_2 = ~LED_2;
// delay_ms(75);
//}
LED_2 = 0; //Green LED off
//Since we've erased, reset our place keeper vars
dfmemZeroIndex();
}
void telemErase(unsigned long numSamples) {
//dfmemEraseSectorsForSamples(numSamples, sizeof (telemU));
// TODO (apullin) : Add an explicit check to see if the number of saved
// samples will fit into memory!
//Green LED will be used as progress indicator
LED_GREEN = 1;
unsigned int firstPageOfSector, i;
//avoid trivial case
if (numSamples == 0) {
return;
}
//Saves to dfmem will NOT overlap page boundaries, so we need to do this level by level:
unsigned int samplesPerPage = mem_geo.bytes_per_page / telemPacketSize; //round DOWN int division
unsigned int numPages = (numSamples + samplesPerPage - 1) / samplesPerPage; //round UP int division
unsigned int numSectors = (numPages + mem_geo.pages_per_sector - 1) / mem_geo.pages_per_sector;
//This is a terrible hack to avoid bus conflicts.
//TODO: find source of bus problems and fix
DisableIntT1;
DisableIntT5;
//At this point, it is impossible for numSectors == 0
//Sector 0a and 0b will be erased together always, for simplicity
//Note that numSectors will be the actual number of sectors to erase,
// even though the sectors themselves are numbered starting at '0'
dfmemEraseSector(0); //Erase Sector 0a
LED_GREEN = ~LED_GREEN;
dfmemEraseSector(8); //Erase Sector 0b
LED_GREEN = ~LED_GREEN;
//Start erasing the rest from Sector 1,
// The (numsectors-1) here is because sectors are numbered from 0, whereas
// numSectors is the actual count of sectors to erase; fencepost error.
for (i = 1; i <= (numSectors-1); i++) {
firstPageOfSector = mem_geo.pages_per_sector * i;
//hold off until dfmem is ready for sector erase command
//LED should blink indicating progress
//Send actual erase command
dfmemEraseSector(firstPageOfSector);
LED_GREEN = ~LED_GREEN;
}
//Leadout flash, should blink faster than above, indicating the last sector
while (!dfmemIsReady()) {
LED_GREEN = ~LED_GREEN;
delay_ms(50);
}
LED_GREEN = 0; //Green LED off
//This is a terrible hack to avoid bus conflicts.
//TODO: find source of bus problems and fix
EnableIntT1;
EnableIntT5;
//Since we've erased, reset our place keeper vars
dfmemZeroIndex();
}
