From f8c3d8ce1d693789e1d5b0e1267bf40c4be9a2bb Mon Sep 17 00:00:00 2001
From: sean <1026025056@qq.com>
Date: Mon, 22 Jul 2024 10:23:34 +0800
Subject: [PATCH] add SPI pins init code

---
 src/M5Stack.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/M5Stack.cpp b/src/M5Stack.cpp
index 069ea44c..c0974047 100644
--- a/src/M5Stack.cpp
+++ b/src/M5Stack.cpp
@@ -7,8 +7,7 @@
 M5Stack::M5Stack() : isInited(0) {
 }
 
-void M5Stack::begin(bool LCDEnable, bool SDEnable, bool SerialEnable,
-                    bool I2CEnable) {
+void M5Stack::begin(bool LCDEnable, bool SDEnable, bool SerialEnable, bool I2CEnable) {
     // Correct init once
     if (isInited == true) {
         return;
@@ -16,6 +15,12 @@ void M5Stack::begin(bool LCDEnable, bool SDEnable, bool SerialEnable,
         isInited = true;
     }
 
+    for (auto gpio : (const uint8_t[]){18, 19, 23}) {
+        *(volatile uint32_t*)(GPIO_PIN_MUX_REG[gpio]) |= FUN_DRV_M;
+        gpio_pulldown_dis((gpio_num_t)gpio);
+        gpio_pullup_en((gpio_num_t)gpio);
+    }
+    
     // UART
     if (SerialEnable == true) {
         Serial.begin(115200);