Re: SPI+DMA with ws2812 driver on samd21

each driver is a separated instance, under the hook > the basic configuration will be similar. > > BR, > > Alan > > On 11/9/23, Bert Voldenuit wrote: > > Hello, > > > > I have figured what causes the transmission problem. > > > > I had

SPI+DMA with ws2812 driver on samd21

Hello, I have figured what causes the transmission problem. I had to setup the Channel Control B Register with: DMAC_CHCTRLB_TRIGACT_BLOCK instead of DMAC_CHCTRLB_TRIGACT_BEAT Because it would only do one pulse. With TRIGACT_BLOCK, it looks better but DMAC do not read all the buffer. it seams th

Re: ws2812 on sam

I set it up to 2 manually. Regards, Bert. Le mar. 31 oct. 2023 à 23:27, Bert Voldenuit a écrit : > Hello Alan, > > It is better with DMA. I think there is an error in sam_dmac.c line 140 I > had to change aligned to aligned_data, otherwise I get > error: expected declaration

Re: ws2812 on sam

with green color only [image: dso_01_01_02_59_38.png] Regards, Bert. Le lun. 30 oct. 2023 à 18:57, Alan C. Assis a écrit : > Hi Bert, > > On 10/30/23, Bert Voldenuit wrote: > > Hi Alan, > > Thanks for adding Brennan to the discussion. > > > > My answers be

Re: ws2812 on sam

. > > On 10/29/23, Bert Voldenuit wrote: > > Hi Alan, > > > > Thanks to your advices, I was able to find why board_ws2812_initialize() > > was not in System.map. > > Now it mounts and opens ws2812 driver. > > > > Great, what was the issue? --> I

Re: ws2812 on sam

Hello, Actually, looking closer at the samd21 datasheet, my led pin can be configured in SPI MOSI. In board/samd2l2/arduino-m0/src/ I added sam_ws2812.c, sam_ws2812.h which are a adapted copy of the stm32 version. Everything compiles but on "nsh> ls /dev", I can see that the led device (/dev/leds

Re: ws2812 on sam

. Regards, Bert. Le dim. 15 oct. 2023 à 22:14, Alan C. Assis a écrit : > Hi Bert, > > On 10/15/23, Bert Voldenuit wrote: > > Hello, > > > > I am trying use ws2812 driver with a samd21 mcu. > > > > I took example from the /boards/arm/rp2040

ws2812 on sam

Hello, I am trying use ws2812 driver with a samd21 mcu. I took example from the /boards/arm/rp2040. added to board.h: #define BOARD_GPIO_WS2812_PIN5 /* verifier pin #5 = PA15 */ added to sam_bringup.c: #ifdef CONFIG_WS2812 /* Configure and initialize the WS2812 LEDs. */ #ifdef CONFIG_WS281

Re: Serialrx

Thanks for the references to github pulls Le mer. 30 août 2023 à 04:18, Xiang Xiao a écrit : > On Wed, Aug 30, 2023 at 5:49 AM Bert Voldenuit > wrote: > > > Hi, > > Alan, > > I use ./tool/configure.sh arduino-m0/nsh > > Thanks to your blog, I am po

Re: Serialrx

Xiao a écrit : > Do you enable DEFAULT_SMALL? If so, you have to enable CONFIG_FILE_STREAM > in defconfig explicitly. > > On Tue, Aug 29, 2023 at 6:11 AM Bert Voldenuit > wrote: > > > Hello, > > > > I am trying to run the serialrx app (out of the box) from the exa

Serialrx

Hello, I am trying to run the serialrx app (out of the box) from the examples, but i get the following errors: - Some warnings because of conversion; no big deal - undefined reference to standard librarie function like: fprintf, lib_get_stream, fflush; I think this is the main problem but why? b