Signed-off-by: 吴文峰 <kevin@lmve.net>

2026-03-03 22:16:00 +08:00
parent 7ae6e9e999
commit 88d56e1e9e
1660 changed files with 281430 additions and 0 deletions
@@ -0,0 +1,23 @@
+#include "variant.h"
+#include "Arduino.h"
+
+void earlyInitVariant()
+{
+    // GPIO10 manages all peripheral power supplies
+    // Turn on peripheral power immediately after MUC starts.
+    // If some boards are turned on late, ESP32 will reset due to low voltage.
+    // ESP32-C3(Keyboard) , MAX98357A(Audio Power Amplifier) ,
+    // TF Card , Display backlight(AW9364DNR) , AN48841B(Trackball) , ES7210(Decoder)
+    pinMode(KB_POWERON, OUTPUT);
+    digitalWrite(KB_POWERON, HIGH);
+    // T-Deck has all three SPI peripherals (TFT, SD, LoRa) attached to the same SPI bus
+    // We need to initialize all CS pins in advance otherwise there will be SPI communication issues
+    // e.g. when detecting the SD card
+    pinMode(LORA_CS, OUTPUT);
+    digitalWrite(LORA_CS, HIGH);
+    pinMode(SDCARD_CS, OUTPUT);
+    digitalWrite(SDCARD_CS, HIGH);
+    pinMode(TFT_CS, OUTPUT);
+    digitalWrite(TFT_CS, HIGH);
+    delay(100);
+}