[quote user="gorazd kovacic"] The firmware is 100% correct. I can program it without problem with SBW. However, after programming a device "successfully" with BSL, the device seems to be corrupted. It can still be programmed "succesfully" (with both BSL and SBW), but it doesnt work. A device works only if programmed with SBW and was intact beforehand. Do you think it is possible for a device to get corrupted by programming it with BSL somehow?[/quote] If I remember right, for BSL on MSP430F2274 must be specified password (vector table from last download). Without password BSL will mass erase device including info segment A with DCO constants. And in this case downloaded program will not work if DCO constants are used. [quote user="gorazd kovacic"] Another question regarding SBW: is SBW communication error prone if the signal wires are of different length?[/quote] SBW should have same length of CLK / DATA (TEST / RESET) lines. Problem for SBW is cap on RESET pin. I tested SBW without cap on RESET pin (5xx flash target device) with direct connection from master (pins) over 1 m length ribbon cable (without drivers / termination) on 6 MHz (200 KByte/s write / verify). It was working just fine on 1.8V and 3.3V.
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