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path: root/drivers/oled/oled_driver.c
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Diffstat (limited to 'drivers/oled/oled_driver.c')
-rw-r--r--drivers/oled/oled_driver.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/oled/oled_driver.c b/drivers/oled/oled_driver.c
index f20f4629aa..e541228ea9 100644
--- a/drivers/oled/oled_driver.c
+++ b/drivers/oled/oled_driver.c
@@ -392,6 +392,8 @@ void oled_write_char(const char data, bool invert) {
static uint8_t oled_temp_buffer[OLED_FONT_WIDTH];
memcpy(&oled_temp_buffer, oled_cursor, OLED_FONT_WIDTH);
+ _Static_assert(sizeof(font) >= ((OLED_FONT_END + 1 - OLED_FONT_START) * OLED_FONT_WIDTH), "OLED_FONT_END references outside array");
+
// set the reder buffer data
uint8_t cast_data = (uint8_t)data; // font based on unsigned type for index
if (cast_data < OLED_FONT_START || cast_data > OLED_FONT_END) {
@@ -585,4 +587,4 @@ void oled_task(void) {
#endif
}
-__attribute__((weak)) void oled_task_user(void) {} \ No newline at end of file
+__attribute__((weak)) void oled_task_user(void) {}