ESP8266 Community Forum

- Tue Feb 17, 2015 1:44 pm #10030

Well done already it works as it should I did some tests and it seems that everything is okay I just had to overwrite this line "if ((packagenum + 0) == numpackages) { // all packets found" 1 to 0 because not sit channels. Still, I think it would be great to add the code simple function test when the ESP module connects source could be suddenly turned all colors and then turn it off would be a good idea to verify the functionality of the matrix

This is great news ... we are almost there. Yes it worked ... but there are still a couple of bugs ... it is working becuase every frame was being seen as a split frame. this just showed us that copying the data to the framebuffer and send it to the ws2812 code is working as expected ...

Here is the final routine ... if you would check this again as before and give feedback ... but I think we got it ... then we can talk about ws2812 init code & possible configuration.

Code: Select alluint16_t framebuffer_len = 0;
unsigned char framebuffer[1536]; //max 512 rgb pixels

static void ICACHE_FLASH_ATTR tpm2net_recv(void *arg, char *pusrdata, unsigned short length) {
    unsigned char *data =(unsigned char *)pusrdata; //pointer to espconn's returned data
    if (data && length >= 6 && data[0]==0x9C) { // header identifier (packet start)
        uint8_t blocktype = data[1]; // block type
        uint16_t framelength = ((uint16_t)data[2] << 8) | (uint16_t)data[3]; // frame length
        uint8_t packagenum = data[4]; // packet number 0-255 0x00 = no frame split
        uint8_t numpackages = data[5]; // total packets 1-255
        if (blocktype == 0xDA) { // data command ...
            if (length >= framelength + 7 && data[6+framelength]==0x36) { // header end (packet stop)
                if (numpackages == 0x01) { // no frame split found
                    unsigned char *frame = &data[6]; // pointer 'frame' to espconn's data (start of data)
                    ws2812_out(frame, framelength); // send data to strip
                } else { //frame split is found
                    os_memcpy (&framebuffer[framebuffer_len], &data[6], framelength);
                    framebuffer_len += framelength;
                    if (packagenum == numpackages) { // all packets found
                        unsigned char *frame = &framebuffer[0]; // pointer 'frame' framebuffer
                        ws2812_out(frame, framebuffer_len); // send data to strip
                        framebuffer_len = 0;
                    }
                }
            }
        }
    }
}


Hi

Today I tested the code not found error seems that everything is working properly.

- Tue Feb 17, 2015 2:02 pm #10033

Hi

Today I tested the code not found error seems that everything is working properly.

you test both ... higher channels & lower channels?

this is great! thank you folny82 for pushing me on this and all of your help testing!!

- Tue Feb 17, 2015 2:15 pm #10035 can we confirm (get) testing on pixelcontroller & glediator ... anyone?

also, we have hard coded the limit to 512 leds in the code ...

Code: Select allunsigned char framebuffer[1536]; //max 512 rgb pixels

anyone want to push this to the limit and see just how many leds can be controlled by this ...

- Tue Feb 17, 2015 2:20 pm #10036

Hi

Today I tested the code not found error seems that everything is working properly.

you test both ... higher channels & lower channels?

this is great! thank you folny82 for pushing me on this and all of your help testing!!

Yes, I tested it for 64,128,256,512 LEDs that everything worked properly. I also tried to modify the code to 3072 channels but that did not work properly ESP was slow and restarts.