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[lcd] forbid writing to non-existant framebuffers

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ІО-23 Шмуляр Олег 2025-04-19 15:04:15 +03:00
parent cc32a3092a
commit ee3249beca
1 changed files with 3 additions and 0 deletions
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3
Core/Src/lcd.c
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@ -136,6 +136,9 @@ static void display_write_data_byte_direct(uint8_t code)
static void display_write_data_byte_framebuffer(uint8_t code) static void display_write_data_byte_framebuffer(uint8_t code)
{ {
if (display_current_frame >= DISPLAY_FRAMES_AVAILABLE)
return;
display_framebuffer[16*2*display_current_frame + des.cursor_offset] = (char) code; display_framebuffer[16*2*display_current_frame + des.cursor_offset] = (char) code;
des.cursor_offset += des.next ? -1 : 1; des.cursor_offset += des.next ? -1 : 1;
} }