Merge branch 'bugfix/chip823_pll_bug_v5.2' into 'release/v5.2'

fix(H2):fix pll low temp bug(v5.2) See merge request espressif/esp-idf!35240
espressif · Dec 4, 2024 · 1fc6ee6 · 1fc6ee6
2 parents 9c6952f + 594feec
commit 1fc6ee6
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/components/bootloader_support/src/esp32h2/bootloader_esp32h2.c b/components/bootloader_support/src/esp32h2/bootloader_esp32h2.c
@@ -89,6 +89,8 @@ static inline void bootloader_hardware_init(void)
 {
     /* Enable analog i2c master clock */
     SET_PERI_REG_MASK(MODEM_LPCON_CLK_CONF_REG, MODEM_LPCON_CLK_I2C_MST_EN);
+    REGI2C_WRITE_MASK(I2C_BIAS, I2C_BIAS_DREG_0P8, 8);  // fix low temp issue, need to increase this internal voltage
+
 }
 
 static inline void bootloader_ana_reset_config(void)