fixed the set_pixel function

diff --git a/extdrv/ssd130x_oled_driver.c b/extdrv/ssd130x_oled_driver.c
index 06c0d68..46f7140 100644 (file)
--- a/extdrv/ssd130x_oled_driver.c
+++ b/extdrv/ssd130x_oled_driver.c
@@ -403,11 +403,11 @@ int ssd130x_update_modified(struct oled_display* conf)
 /* Change our internal buffer, without actually displaying the changes */
 int ssd130x_set_pixel(struct oled_display* conf, uint8_t x0, uint8_t y0, uint8_t state)
 {
-       uint8_t* addr = gddram_start + ((y0 >> 3) * 128) + x0;
+       uint8_t* addr = gddram_start + ((y0 / 8) * 128) + x0;
        if (state != 0) {
-               *addr |=  (0x01 << (7 - (x0 & 0x03)));
+               *addr |=  (0x01 << (y0 % 8));
        } else {
-               *addr &= ~(0x01 << (7 - (x0 & 0x03)));
+               *addr &= ~(0x01 << (y0 % 8));
        }
        return 0;
 }