NP-41 Emulator (may be)
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12-15-2017, 02:30 PM
Post: #316
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RE: NP-41 Emulator (may be)
(12-15-2017 12:14 AM)Sylvain Cote Wrote: I am currently working 15h/day to reactivate a production line to refurbished 90k embedded devices before the end of the year.Sorry to hear that you are loaded w/ work when we are closing in for the holidays. No worry on the testing. I look a 6 month leave on the project too. It's just a hobby project and I won't do it when it's stressing on myself. It is more on my bad that this first batch did not went that well. I remember we do have little issues for the 1st batch NP25, mostly quality issues (not firmware). I should have limited this batch to less units and take another iteration to refine the firmware etc. Sylvain Cote Wrote:2) initial display: NP41 = 3613It's kind of odd to register 3.6V, the MCU runs between 1.8V to 3.6V. Sylvain Cote Wrote:Edit #2: I have also tried the [USER] press + [plug-serial-connector] + [USER] release#2 would be the last resort as I had placed the bootloader far away from the main firmware location. The bootloader don't do LCD initialization, it only setup a most basic UART and the only purpose is to replace firmware. So it this fails, it's more like a hardware problem. #3 It appeared that it was rebooting itself upon keypress, so you got back the "NP41 V=????" initial display. I am going to replace your unit next week. Please only ship back the deflect units when you have time after the holidays. There is no rush. I have enough PCB and parts to produce replacements should the need arise. Also a reminder for other users, I forgot to mention that you will need a 4 pin 0.1" header pins for building the USB-serial cable. I shall order this dongles in the future and included them in kits. |
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