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NuTiny ARM Cortex-M0 Starter Kit
Posted:
Sun Nov 02, 2014 1:11 amby Ali_Challenger
- NuTiny-SDK-NUC140 (Blue PCB Board)
Hi,
when use the USB port "J1: USB port in NuTiny-EVB-NUC140" for the "NuTiny ARM Cortex-M0 Starter Kit" for HID environment do we have to power up the kit from external power supply or not?! thanks.
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Sun Nov 02, 2014 1:44 pmby ober
It depends on the current requirement of your project. Since you are using HID, the USB connection must be there, so if the current consumption is not high, just use the power from USB.
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Sun Nov 02, 2014 1:59 pmby Ali_Challenger
Actually I just used the example that provided with the kit, this example used to run the NuTiny as a mouse or keyboard.
So I uploaded to code by using the programmer/ debugger that located on the right side of the kit and its uploaded successfully but, when I moved the USB cable to the left side HID J1 that connected to the ARM chip it doesn't shows any response even the power LED indicator doesn't power up ?!
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Mon Nov 03, 2014 5:02 pmby ober
Just check the schematic and the board itself, the Nutiny board does not populate diode D1. As I understand from Nuvoton engineering team, the D1 is not populated is due to protection purpose.
Try solder a schottky diode as shown will solve the problem.
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Tue Nov 04, 2014 12:25 pmby Ali_Challenger
Thank you pretty much Mr. ober, for your help.
I tried it and it's work perfectly.
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Wed Dec 10, 2014 11:06 pmby Ali_Challenger
Good evening,
How can I change the pins output voltage of this board?!
Is it work fine if I desoldered the shown resistor (actually I think it's not a resistor, it's just a jumper because i checked it shows 0 ohm), and then solder a jumper instead so I can easily change between 5V and 3.3V ?!?
Please advise me.
Thanks
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Mon Dec 15, 2014 9:39 amby ober
Yes, you can. But that decide the power from ICE (programmer) to the target board.
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Mon Dec 15, 2014 7:54 pmby Ali_Challenger
Ok, thanks a lot Eng. Ober, for your reply.
But what about the programming voltage? I mean when I want to upload a program to the target "NUC140VE3AN" I have to select 3.3V only and after that change to 5V ?! or I can directly programming it via 5V?
Thank you.
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Mon Dec 22, 2014 10:58 amby Idris
Hi Ali_Challenger,
Ali_Challenger WROTE:But what about the programming voltage? I mean when I want to upload a program to the target "NUC140VE3AN" I have to select 3.3V only and after that change to 5V ?! or I can directly programming it via 5V?
Yes, you can directly programming it via 5V.
Re: NuTiny ARM Cortex-M0 Starter Kit
Posted:
Mon Dec 22, 2014 10:03 pmby Ali_Challenger
Idris WROTE:Hi Ali_Challenger,
Ali_Challenger WROTE:But what about the programming voltage? I mean when I want to upload a program to the target "NUC140VE3AN" I have to select 3.3V only and after that change to 5V ?! or I can directly programming it via 5V?
Yes, you can directly programming it via 5V.
Thank you pretty much Eng. Idris, I will give it a try later.