Search found 11 matches

by kojima
04 Mar 2019, 08:29
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Fly-Mode packetizing size control
Replies: 1
Views: 20708

HsUSBD Fly-Mode packetizing size control

Dear staffs, I'm investigating HsUSBD of Cortex-M4 serise. I have a question about Fly-Mode which will be used for IN-Endpoints. ○When I write a data by WORD-access to corresponding EPxDAT, does this mechanism validate packet length by FOUR byte boundary ? ○This mode is explained that it is suitable...
by kojima
01 Mar 2019, 21:09
Forum: Nuvoton Cortex-M0 MCU
Topic: Where can I find BSB for NuMaker emWIN NUC126?
Replies: 1
Views: 16583

Where can I find BSB for NuMaker emWIN NUC126?

Dear fellows,

Does anyone know where the corresponding BSP is ?
That should come with ThirdParty/emWin, like BSP for M480 does.

I could find "NUC126Serise_BSP_CMSUS_v3.00.003.zip" only,
which does NOT contain emWIN for Cortex-M0 based Nuvoton MCUs.

Regards,
by kojima
25 Feb 2019, 19:20
Forum: Nu-bridge / ISP Software
Topic: Nu-Bridge resources Where can I find now?
Replies: 0
Views: 26214

Nu-Bridge resources Where can I find now?

Dear fellows, I'm looking for Nu-Bridge resources, which had been announced March 2017 here. But, I could not find them thru the links which were noted in AlsoJoe's previous posts. I tried to download them only to see sad message as follow, ----- Information The selected attachment does not exist an...
by kojima
22 Feb 2019, 19:01
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Proper Read-out method for Bulk-OUT EPs
Replies: 9
Views: 20082

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

Dear Dyian-san, Thank you for your updates and sorry for my short absense in reply. [Checking emptiess by _BUFEMPTY] I'm always reading out the buffer in 32bit access, because my Host sends word unit information, multiple interger number of four bytes, every time. Does this HW show/update _DATCNT pr...
by kojima
14 Feb 2019, 07:10
Forum: Nuvoton Cortex-M4 MCU
Topic: PDMA REQSRC#65 ETMC_RX in M48x
Replies: 0
Views: 12443

PDMA REQSRC#65 ETMC_RX in M48x

Dear fellows,

I'm looking into the choice of Request Sources for PDMA in M48x serise.
As its #65th Request Source Selection, I can find "ETMC_RX".

What is that and that for ?

Regards,
by kojima
13 Feb 2019, 08:15
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Proper Read-out method for Bulk-OUT EPs
Replies: 9
Views: 20082

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

Dear Dyian, Thank you for your response. (You like to employing USB's DMA. But, please put it aside.) You showed an example explaining how _DATCNT behaves when two of full-sized(512 byte long) packets come in during those data is being read. And you mentioned about "enough space to store" and _DATCN...
by kojima
12 Feb 2019, 07:11
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Proper Read-out method for Bulk-OUT EPs
Replies: 9
Views: 20082

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

Dear Dyian, Yes, you are correct. When I recieved the first packet (whose size is SIZE1) onto BUF1 with ACK response, I can invoke the digester task for that endpoint. At least, until the new USB packet is going to be received on the same endpoint, the digester task can know SIZE1 information thru l...
by kojima
05 Feb 2019, 07:02
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Proper Read-out method for Bulk-OUT EPs
Replies: 9
Views: 20082

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

Dear Dyian, I supporse, I had better asking about this issuse from different point of views for better understanding.. Is this HsUSBD block capable to hold two (or more) packet contents in its allocated endpoint buffer memory ? As far as I browsed, every sample code employing this HsUSBD is allocati...
by kojima
30 Jan 2019, 14:51
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Proper Read-out method for Bulk-OUT EPs
Replies: 9
Views: 20082

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

Dear Dyian, Thank you for your reply and suggestions to employ DMA. >Allocate twice size memory (in your case 512K x 2 = 1K Bytes) >to suppress the NYET/PING is correct way I confirmed that I do not misunderstand how to suppress NYET/PING. Thank you for your information But, regarding employing DMA,...
by kojima
09 Jan 2019, 09:24
Forum: Nuvoton Cortex-M4 MCU
Topic: HsUSBD Proper Read-out method for Bulk-OUT EPs
Replies: 9
Views: 20082

HsUSBD Proper Read-out method for Bulk-OUT EPs

Dear fellows, I've been working on my HsUSB device implentation project. Now facing at problem in read-out process for BulkOut endpoint, especially in a case where ... Buffer memory allocation size for that Endpoint : Due to enjoy better USB transaction in bus utilization point of view, NYET/PING sh...