You need to allocate **contiguous** memory for the framebuffer. The
largest contiguous region in the heap has size 124,192 bytes. You can
allocate nothing larger than that.
The size of the framebuffer you are tying to allocate is 153,600 bytes.
So any attempt to allocate that framebuffer from that heap will fail.
On 1/5/2020 7:49 AM, disruptivesolution...@gmail.com wrote:
Oke I think I am getting somewhere....
Priv has (during lcd_framebuffer):
fblen -> 153600
xres -> 320
yres -> 240
stride -> 640
display -> 0 '\0'
fbmem = 0x0
*fbmem -> 72 'H'
But it stil runs into this error:
priv->fbmem = (FAR uint8_t *)kmm_zalloc(priv->fblen);
if (priv->fbmem == NULL)
{
--?> lcderr("ERROR: Failed to allocate frame buffer memory\n");
What am I overlooking here? Yes fbmem is 0... .....
Total; used; free; largest;
Umem: 191920 7568 184352 124192
Ben
-----Oorspronkelijk bericht-----
Van: Gregory Nutt <spudan...@gmail.com>
Verzonden: zaterdag 4 januari 2020 22:39
Aan: dev@nuttx.apache.org
Onderwerp: Re: NX Graphics
Priv->fblen = 0
Trying to allocate a buffer of zero length will return the value NULL too.
