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Posted by RuneKvinge 
July 16, 2017 09:49PM
Hi, Im trying to flash a brand new bv508_u2_b1 using the .bl command with the firmware version 2.32. But I get this error message saying no bootloader detected (error code 6). I have the latest version of blserial and p32bl.exe. Is there no bootloader installed on the newest bv508_u2_b1? The reason I like to flash it is that it is stuck in a loop in the main() sub.
Re: BV508_U2_b1
July 17, 2017 08:31AM
yes there is a boot loader. The most usual cause for this error message is that the dtr line is not re-setting the device. For the boot loader to work the device needs to be reset just before the process, this is carried out automatically using the DTR on the COM port.
The DTR may not be connected or there is some error on this line.
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