Title: BPV4A USB not work
Post by: BG7YWL on February 20, 2021, 11:19:16 am
Post by: BG7YWL on February 20, 2021, 11:19:16 am
Brush firmware "BPV4_BOOT4.10_FW7.0_OPT0_18092016. hex" through PCIKIT3 programmer, then connect to PC through USB, cannot recognize COM port, only PWD light on hardware.
Title: Re: BPV4A USB not work
Post by: ifrenide on February 20, 2021, 09:35:01 pm
Post by: ifrenide on February 20, 2021, 09:35:01 pm
hello, it seems that you have the same problem , that I had before, Ok I can help.
did you make it by your self, or bay it? I want to know i you are programming it for the first time, or you ordered it already programmed, and you want to upgrade it?
regards
samir
did you make it by your self, or bay it? I want to know i you are programming it for the first time, or you ordered it already programmed, and you want to upgrade it?
regards
samir
Title: Re: BPV4A USB not work
Post by: BG7YWL on February 22, 2021, 03:51:37 am
Post by: BG7YWL on February 22, 2021, 03:51:37 am
I did it myself. Connect the hardware through PICKIT3, first erase and write the chip, and then burn the BOOT.
Then connect to the PC through the USB data cable, but the USB device cannot be recognized and inserted into the PC.
Then connect to the PC through the USB data cable, but the USB device cannot be recognized and inserted into the PC.
Title: Re: BPV4A USB not work
Post by: tayken on March 01, 2021, 06:45:03 pm
Post by: tayken on March 01, 2021, 06:45:03 pm
Are you flashing the bootloader first vıa PicKit and then trying to flash the firmware via bootloader?
I think the bootloader has the fuse settings that determine timing which the firmware depends on. Also I've seen fuse settings getting skipped when programming from time to time, I would verify that those are getting programmed as well.
I think the bootloader has the fuse settings that determine timing which the firmware depends on. Also I've seen fuse settings getting skipped when programming from time to time, I would verify that those are getting programmed as well.
Title: Re: BPV4A USB not work
Post by: BG7YWL on March 10, 2021, 06:00:56 am
Post by: BG7YWL on March 10, 2021, 06:00:56 am
BBV4 is fine and BPV4A is not working.
