Fix display: add RAMWR before pixel data, correct colors, smaller text

Root cause: missing RAMWR (0x2C) command before pixel data transfer.
Without RAMWR, the display didn't know to write data into the RAM window
set by CASET/RASET, causing wrapping and double-vision artifacts.

- Add qspi_write_command(RAMWR) before pixel data in flush()
- Use internal DMA byte-swap buffer (MALLOC_CAP_DMA) for correct colors
- Reduce font scale: TollGate scale 2, starting... scale 1
- Centered text positions for 320x480 portrait

Display now shows: blue TollGate + yellow starting... on black

1 files changed, 1 insertions, 0 deletions

diff --git a/components/axs15231b/axs15231b.c b/components/axs15231b/axs15231b.c
index 49122a1..7424a20 100644
--- a/components/axs15231b/axs15231b.c
+++ b/components/axs15231b/axs15231b.c
@@ -316,6 +316,7 @@ void axs15231b_flush(void) {
 
     qspi_write_cmd_d16d16(CASET, 0, s_width - 1);
     qspi_write_cmd_d16d16(RASET, 0, s_height - 1);
+    qspi_write_command(RAMWR);
 
     int total_pixels = s_width * s_height;
     int pixel_offset = 0;