7 void ssd1331_invertDisplay(
screen_t *dev,
char i) {
9 int mask_cs = (1 << dev->
dev_id);
10 int mask_sdi = (1 << dev->
sdi_pin);
11 int mask_clk = (1 << dev->
clk_pin);
12 int mask_dc = (1 << dev->
dc_pin);
14 ssd1331_writeLockSet(dev->
dev_id);
17 ssd1331_writeByte(mask_cs, mask_sdi, mask_clk, mask_dc, SSD1331_CMD_NORMALDISPLAY, 0);
19 ssd1331_writeByte(mask_cs, mask_sdi, mask_clk, mask_dc, SSD1331_CMD_INVERTDISPLAY, 0);
22 ssd1331_writeLockClear(dev->
dev_id);