Renesas RX65 Envision Kit - part 11: port emWin to GCC and run an LCD Widget

RE: Renesas RX65 Envision Kit - part 11: port emWin to GCC and run an LCD Widget

Jan Cumps — Sat, 04 Jan 2020 11:18:19 GMT

I've tried to set up a loader file and adapt the display settings to use the allocated areas.

It's not successful yet. The program does not go past the GUI_Init(), indicating that something gets overwritten or I made another mistake ...

Linker file.

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=text&text=...%0A++.ustack+%3A%0A++%7B%0A++++%22_ustack%22+%3D+.%3B%0A++%7D+%3ERAM+%0A++%0A++.FRAME_BUFFER1+ALIGN%284%29+%3A%0A%7B%0A++KEEP%28*%28.FRAME_BUFFER1%29%29%0A%22_FRAME_BUFFER1%22+%3D+.%3B%0A.+%2B%3D+0xFE00%3B%0A%7D+%3ERAM+%0A%0A.FRAME_BUFFER2+%3A%0A%7B%0A++KEEP%28*%28.FRAME_BUFFER2%29%29%0A++%22_FRAME_BUFFER2%22+%3D+.%3B%0A.+%2B%3D+0xFE00%3B%0A%7D+%3ERAM2]

Code:

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=c_cpp&text=extern+U32++FRAME_BUFFER1%5B%5D%3B%0A%23define+FRAME_BUF_BASE_ADDR1+++FRAME_BUFFER1%0Aextern+U32++FRAME_BUFFER2%5B%5D%3B%0A%23define+FRAME_BUF_BASE_ADDR2+++FRAME_BUFFER2%0A%0Astatic+const+U32+_aBufferPTR%5B%5D+%3D+%7B%0A++++FRAME_BUF_BASE_ADDR1%2C+%0A++++FRAME_BUF_BASE_ADDR2++%0A%7D%3B]

[View:/resized-image/__size/650x207/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-39b9f757-191e-4875-8988-d774c03cba7d/2055.contentimage_5F00_205584.png:650:207]

[View:/resized-image/__size/620x178/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-39b9f757-191e-4875-8988-d774c03cba7d/1460.contentimage_5F00_205585.png:620:178]

... I'll investigate further ...

RE: Renesas RX65 Envision Kit - part 11: port emWin to GCC and run an LCD Widget

shabaz — Fri, 03 Jan 2020 10:43:09 GMT

The RX65 looks like a nice quick solution for combining the application and graphical HMI, if it has the resources for such high-res displays as in the photo!

Great to see it functioning with GCC.

RE: Renesas RX65 Envision Kit - part 11: port emWin to GCC and run an LCD Widget

Andrew J — Fri, 03 Jan 2020 09:17:57 GMT

This will be very useful for anyone not wanting to lump out for a CC-RX license after 60 days.

RE: Renesas RX65 Envision Kit - part 11: port emWin to GCC and run an LCD Widget

DAB — Thu, 02 Jan 2020 19:37:56 GMT

Good update Jan.

DAB

RE: Renesas RX65 Envision Kit - part 11: port emWin to GCC and run an LCD Widget

Jan Cumps — Thu, 02 Jan 2020 16:19:49 GMT

The size of each buffer is:

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=c_cpp&text=%23define+BYTES_PER_LINE+++%28%28BITS_PER_PIXEL+*+XSIZE_PHYS%29+%2F+8%29%0A%23define+LINE_OFFSET++++++%28%28%28BYTES_PER_LINE+%2B+63%29+%2F+64%29+*+64%29%0A%2F%2F+...%0A%23define+BYTES_PER_BUFFER+%28LINE_OFFSET+*+YSIZE_PHYS%29]

BYTES_PER_LINE = (16 * 480) / 8 = 960

LINE_OFFSET = ((960 + 63) / 64) * 64 = 960

BYTES_PER_BUFFER = 960 * 272 = 130560 thanks Andrew for the correction 261120

Additionally, the program allocates this chunk of RAM in GUIConf.c, for in-memory drawing:

[embed:dc8ab71f-3b98-42d9-b0f6-e21e02a0f8e2:3ef06e6b-9b7d-4651-b12d-db8be7f5e991:type=c_cpp&text=%23define+GUI_NUMBYTES++%281024+*+49%29%0Avoid+GUI_X_Config%28void%29+%7B%0A++%2F%2F%0A++%2F%2F+32+bit+aligned+memory+area%0A++%2F%2F%0A++static+U32+aMemory%5BGUI_NUMBYTES+%2F+4%5D%3B%0A++%2F%2F%0A++%2F%2F+Assign+memory+to+emWin%0A++%2F%2F%0A++GUI_ALLOC_AssignMemory%28aMemory%2C+GUI_NUMBYTES%29%3B%0A...%0A%7D]

It has to be ensured that the emWin memory pool which is defined
by the function GUI_ALLOC_AssignMemory (in GUIConf.c), is
big enough to store the complete data. If the Memory Device
can not be created, the image is drawn directly. This might
possibly mean loss of performance.
IMAGE_CF_TILE not set Use tiling to fill the whole widget area.