Search found 31 matches

by Dylan Hsieh
09 Jan 2019, 19:09
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Proper Read-out method for Bulk-OUT EPs
Replies: 9
Views: 29273

Re: HsUSBD Proper Read-out method for Bulk-OUT EPs

Hi Kojima-san, According to HSUSB specification if Endpoint buffer have no enough space to store the one packet size, NYET will be returned. Allocate twice size memory (in your case 512K x 2 = 1K Bytes) to suppress the NYET/PING is correct way. To let the USB transfer more efficiency, I suggest usin...
by Dylan Hsieh
07 Dec 2018, 16:24
Forum: Example Code
Topic: Related to Ethernet in M487
Replies: 2
Views: 37932

Re: Related to Ethernet in M487

Hi alan.a, We integrated FreeRTOS with lwip (TCP/IP stack) on M480 BSP package, and lwip provide socket layer for network application, now we have two sample code [ TCP_EchoServer ] and [ UDP_EchoServer ], you can find these on M480BSP github. https://github.com/OpenNuvoton/M480BSP/ Or you can use t...
by Dylan Hsieh
16 May 2017, 18:52
Forum: Nuvoton Cortex-M4 MCU
Topic: [M453] Wakeup from Deep Sleep by GPIO Interrupt
Replies: 5
Views: 10869

Re: [M453] Wakeup from Deep Sleep by GPIO Interrupt

Hi,

It seems you miss to enable wake-up function of timer.

To enable wake-up function of timer, you need to set the bit [WKEN] in the [TIMERx_CTL] or you can just call the API function TIMER_EnableWakeup(TIMERX).
by Dylan Hsieh
09 May 2017, 09:28
Forum: Nuvoton Cortex-M4 MCU
Topic: [M453] Wakeup from Deep Sleep by GPIO Interrupt
Replies: 5
Views: 10869

Re: [M453] Wakeup from Deep Sleep by GPIO Interrupt

Hi,

Have you downloaded the BSP of M451 from our website, the BSP have the sample code of how to use GPIO to wake-up the system from the power-saving mode.

Thanks
by Dylan Hsieh
28 Apr 2017, 09:46
Forum: Nuvoton Cortex-M4 MCU
Topic: CAN wake up mechanism
Replies: 2
Views: 6061

Re: CAN wake up mechanism

It seems that you miss some instrument which let NUC442/NUC472 enter into power-saving mode.
by Dylan Hsieh
28 Apr 2017, 09:42
Forum: Example Code
Topic: Sample project/resources for GCC/Linux
Replies: 21
Views: 132926

Re: Sample project/resources for GCC/Linux

Hi,

As I know that NUVOTON actually have plan to let user develop their project under LINUX and it's still under development, so I can't sure when will it be released. But I'll give your request to them to speed up developing.

Thanks for your suggestion!
by Dylan Hsieh
26 Apr 2017, 17:47
Forum: Example Code
Topic: Sample project/resources for GCC/Linux
Replies: 21
Views: 132926

Re: Sample project/resources for GCC/Linux

Hi,

Unfortunately, NUVOTON doesn't have any tool to uploading the code to controller under LINUX for now, I think the best way is compile the source code and generate the HEX file or BIN file under LINUX and then use the "NuMicro ICP Programming Tool" under WINDOWS to upload the code.
by Dylan Hsieh
24 Apr 2017, 14:07
Forum: Example Code
Topic: Sample project/resources for GCC/Linux
Replies: 21
Views: 132926

Re: Sample project/resources for GCC/Linux

Hi,

The attachment file is a very simple project under GCC/Linux, maybe you could modify it to fit your develop environment.
by Dylan Hsieh
29 Mar 2017, 10:30
Forum: Nuvoton Cortex-M4 MCU
Topic: Why is the observed variable displayed as “not in scope” in Debug mode under the Keil development environment?
Replies: 0
Views: 5895

Why is the observed variable displayed as “not in scope” in Debug mode under the Keil development environment?

When interrupted in Debug mode, the user wants to check the variable value but see ”not in scope” on the Watch window, as shown below: http://www.nuvoton.com/export/sites/nuvoton/.content/support/faq/images/FAQ103-1.jpg This is because the compiler would put variables into R1 registers after optimi...
by Dylan Hsieh
29 Mar 2017, 10:21
Forum: Nuvoton Cortex-M4 MCU
Topic: What real-time operating systems (RTOS) do NuMicro™ Cortex-M series chips support?
Replies: 0
Views: 3568

What real-time operating systems (RTOS) do NuMicro™ Cortex-M series chips support?

The real-time operating systems supported by the NuMicro™ Cortex-M series include :
  • FreeRTOS
  • uC/OS-II
  • Keil RTX
  • IAR PowerPAC RTOS.