I just encountered this problem (Read Lenght > RAM capacity) with a few games. It mainly concerns Lankhor's games such as Vroom or Maupiti Island, and a few other titles I don't remember.
Otherwise 99% of the dumps i made with SCP (more than 2000 games now) have been done with 5 revolutions splice option and never got the RAM capacity issue.
DrCoolZic wrote:In most case the fact that the first value is incorrect
DrCoolZic wrote:Just wondering if I have a specific problem with my SCP hardware (got one of the first units) or if everybody getting the same error.
Very (very) often when I try to image a floppy I am getting “Read Length > RAM capacity” error and there is no other option than to cancel the imaging process.
JimDrew wrote:DrCoolZic wrote:In most case the fact that the first value is incorrect
That is not the case. The first value is correct. The value will be the duration from the index position until the end of that bitcell. If you add the first bitcell value to the last bitcell value (which ends somewhere during the index position), you get the correct length for the first bitcell.
Putting the floppy cable incorrectly is certainly not a good idea but does anybody knows if this kill the board? Can it be repaired?
JimDrew wrote:There is nothing "pushed" to any revolution. The dump is straight without any modifications done. The index to index pulse time is used to determine the exact position of where the bitcells are split on multi-revolution images. You have to use the index to index pulse time, along with the total bitcell times added together to get the exact spot of where the index pulse appears in the middle of a bitcell.
Code: Select all
Rev 0 – Flux count = 39289 – Index Time = 199940300
Fluxes = 1344900, 5275, … , 24625, 2700
Sum of fluxes = 198625575 – Delta = 1314725
Rev 1 – Flux count = 39290 – Index Time = 199922800
Fluxes = 4298950, 5300, … , 24625, 2700
Sum of fluxes = 199923400 – Delta = -600
Rev 2 – Flux count = 39290 – Index Time = 199922500
Fluxes = 4296950, 5275, … , 24625, 2675
Sum of fluxes = 199921925 – Delta = 575
Rev 3 – Flux count = 39290 – Index Time = 199911075
Fluxes = 4298700, 5300, … , 24625, 2675
Sum of fluxes = 199911100 – Delta = -25
Rev 4 – Flux count = 39290 – Index Time = 199923575
Fluxes = 4299225, 5300, … , 24625, 2700
Sum of fluxes = 199923550 – Delta = -25
Users browsing this forum: No registered users and 1 guest