Merge pull request #228 from julianbuettner/main

Fix Epd7in5_V2 content fading out during DisplayFrame thanks to @julianbuettner

src/epd7in5_v2/mod.rs

@@ -70,17 +70,16 @@ where
         // and as per specs:
         // https://www.waveshare.com/w/upload/6/60/7.5inch_e-Paper_V2_Specification.pdf
 
-        self.cmd_with_data(spi, Command::BoosterSoftStart, &[0x17, 0x17, 0x27, 0x17])?;
-        self.cmd_with_data(spi, Command::PowerSetting, &[0x07, 0x17, 0x3F, 0x3F])?;
+        self.cmd_with_data(spi, Command::PowerSetting, &[0x07, 0x07, 0x3f, 0x3f])?;
+        self.cmd_with_data(spi, Command::BoosterSoftStart, &[0x17, 0x17, 0x28, 0x17])?;
         self.command(spi, Command::PowerOn)?;
+        delay.delay_ms(100);
         self.wait_until_idle(spi, delay)?;
         self.cmd_with_data(spi, Command::PanelSetting, &[0x1F])?;
-        self.cmd_with_data(spi, Command::PllControl, &[0x06])?;
         self.cmd_with_data(spi, Command::TconResolution, &[0x03, 0x20, 0x01, 0xE0])?;
         self.cmd_with_data(spi, Command::DualSpi, &[0x00])?;
-        self.cmd_with_data(spi, Command::TconSetting, &[0x22])?;
         self.cmd_with_data(spi, Command::VcomAndDataIntervalSetting, &[0x10, 0x07])?;
-        self.wait_until_idle(spi, delay)?;
+        self.cmd_with_data(spi, Command::TconSetting, &[0x22])?;
         Ok(())
     }
 }