Isaac Marino Bavaresco wrote: > The boot-loader is not yet finished but I did some tests in the real > hardware today, and they show that the word-programming works. I have done bootloaders for dsPIC parts. These have to erase a whole erase block at a time. My bootloaders then write whole write blocks within each erase block. So far that seems to have worked without incident. I don't see why a bootloader would want to write individual words. I think that could wear out the flash faster too. It's possible that each word write effects the whole write block. If a write block is 32 words in size, then writing each word individually may stress the flash as if the whole block were written 32 times. I don't know if this is true, but I can certainly see how it could be. Again, word writes don't make much sense for a bootloader. ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .