Initial commit: CCU621_M firmware project with BLE debug link support.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-08 17:28:36 +08:00
commit 9ceb218f80
1597 changed files with 724159 additions and 0 deletions
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+/*!
+    \file    gd32h7xx_vref.c
+    \brief   VREF driver
+    
+    \version 2025-01-24, V1.4.0, firmware for GD32H7xx
+*/
+
+/*
+    Copyright (c) 2025, GigaDevice Semiconductor Inc.
+
+    Redistribution and use in source and binary forms, with or without modification, 
+are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice, this 
+       list of conditions and the following disclaimer.
+    2. Redistributions in binary form must reproduce the above copyright notice, 
+       this list of conditions and the following disclaimer in the documentation 
+       and/or other materials provided with the distribution.
+    3. Neither the name of the copyright holder nor the names of its contributors 
+       may be used to endorse or promote products derived from this software without 
+       specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
+INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
+PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
+OF SUCH DAMAGE.
+*/
+
+#include "gd32h7xx_vref.h"
+
+/*!
+    \brief      deinitialize the VREF
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void vref_deinit(void)
+{
+    rcu_periph_reset_enable(RCU_VREFRST);
+    rcu_periph_reset_disable(RCU_VREFRST);
+}
+
+/*!
+    \brief      enable VREF
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void vref_enable(void)
+{
+    VREF_CS |= VREF_EN;
+}
+
+/*!
+    \brief      disable VREF
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void vref_disable(void)
+{
+    VREF_CS &= (uint32_t)~VREF_EN;
+}
+
+/*!
+    \brief      enable VREF high impendance mode
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void vref_high_impedance_mode_enable(void)
+{
+    VREF_CS |= VREF_HIGH_IMPEDANCE_MODE;
+}
+
+/*!
+    \brief      disable VREF high impendance mode
+    \param[in]  none
+    \param[out] none
+    \retval     none
+*/
+void vref_high_impedance_mode_disable(void)
+{
+    VREF_CS &= (uint32_t)~VREF_HIGH_IMPEDANCE_MODE;
+}
+
+/*!
+    \brief      get the status of VREF
+    \param[in]  none
+    \param[out] none
+    \retval     the status of VREF output
+      \arg        SET: the VREF output is ready
+      \arg        RESET: the VREF output is not ready
+*/
+FlagStatus vref_status_get(void)
+{
+    if(RESET != (VREF_CS & (uint32_t)VREF_CS_VREFRDY)){
+        return SET;
+    }else{
+        return RESET;
+    }
+}
+
+/*!
+    \brief      select the VREF voltage reference 
+    \param[in]  vref_voltage: voltage reference select, 
+                only one parameter can be selected which is shown as below:
+      \arg        VREF_VOLTAGE_SEL_2_5V: VREF voltage reference select 2.5 V
+      \arg        VREF_VOLTAGE_SEL_2_048V: VREF voltage reference select 2.048 V
+      \arg        VREF_VOLTAGE_SEL_1_8V: VREF voltage reference select 1.8 V
+      \arg        VREF_VOLTAGE_SEL_1_5V: VREF voltage reference select 1.5 V
+    \param[out] none
+    \retval     none
+*/
+void vref_voltage_select(uint32_t vref_voltage)
+{
+    uint32_t temp = VREF_CS;
+
+    /* clear old value  */
+    temp &= ~(uint32_t)VREF_VOLTAGE_SEL_1_5V;
+    temp |= (uint32_t)vref_voltage;
+  
+    VREF_CS = temp;
+}
+
+/*!
+    \brief      set the calibration value of VREF
+    \param[in]  value: calibration value (0x00 - 0x3F)
+    \param[out] none
+    \retval     none
+*/
+void vref_calib_value_set(uint8_t value)
+{
+    VREF_CALIB = (uint32_t)(VREF_CALIB_VREFCAL & value);
+}
+
+/*!
+    \brief      get the calibration value of VREF
+    \param[in]  none
+    \param[out] none
+    \retval     calibration value (0x00 - 0x3F)
+*/
+uint8_t vref_calib_value_get(void)
+{
+    uint8_t temp = (uint8_t)VREF_CALIB;
+    return temp;
+}