[quote user="zrno soli"]It is using (USB) interrupts.[/quote]I looked at the 5xx_6xx_BSL_Source\Peripheral_Interfaces\USB\Proj_Settings.h in MSP430BSL_1_00_11_00 and as far as I could tell it is using polling rather than interrupts. There is the following definition: #define _NO_ISR // Do not use USB interrupt, handles it by polling And the file header comments contain: | R.Stolyar 2009/03/12 Change from interrupt handling to polling | Is there another USB BSL version which does use interrupts?
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