Em 25/04/2014 15:04, alan.b.pearce@stfc.ac.uk escreveu: >>>> In my case the chips are real chips and work (almost) correctly, >>>> apart from some weird bugs. >>> Who programmed the chips and with what? >>> Early dsPICs did have flash issues IIRC. In any case I do believe they >>> had more strict programming requirements. >>> >>> - >>> Martin K >> >> I program them with an ICD3. The chip is programmed with my TCP/IP >> bootloader that then uploads the application firmware. Self programming = is >> perfectly acceptable for these devices. >> This process is working well for several years and just now the problems >> started. Before the existence of the ICD3 I used an ICD2 and no problems >> also. > Have you checked the errata against the device code the chips return? Indeed I didn't, but they are of the same revision as the last batch made in South Korea and only part of the 100 China made boards presented some dsPIC related defect. Isaac --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .