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| author | Fran莽ois Cartegnie <281376+fcartegnie@users.noreply.github.com> | 2024-06-06 11:22:09 +0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-06-06 11:22:09 +0700 |
| commit | f6d84a1ead1a57574c45bb80b6fd450c5b784e09 (patch) | |
| tree | ccfe2db3861197bc29eff52e53a814d909501863 /CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_adc.c | |
| parent | d641c0de85f6ccf73c8c99012f1a5c4e28af54dc (diff) | |
| parent | 90cdb61063b408aa4d8ba0c1e3c36d804f69f61a (diff) | |
Merge pull request #10 from kienvo/led-scan
Add basic Charlieplexing scan
Diffstat (limited to 'CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_adc.c')
| -rw-r--r-- | CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_adc.c | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_adc.c b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_adc.c new file mode 100644 index 0000000..de86726 --- /dev/null +++ b/CH5xx_ble_firmware_library/StdPeriphDriver/CH58x_adc.c @@ -0,0 +1,235 @@ +/********************************** (C) COPYRIGHT *******************************
+ * File Name : CH58x_adc.c
+ * Author : WCH
+ * Version : V1.2
+ * Date : 2021/11/17
+ * Description
+ *********************************************************************************
+ * Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+ * Attention: This software (modified or not) and binary are used for
+ * microcontroller manufactured by Nanjing Qinheng Microelectronics.
+ *******************************************************************************/
+
+#include "CH58x_common.h"
+
+/*********************************************************************
+ * @fn ADC_DataCalib_Rough
+ *
+ * @brief 采样数据粗调,获取偏差值,必须先配置ADC后调用此函数获取校准值
+ *
+ * @param none
+ *
+ * @return 偏差
+ */
+signed short ADC_DataCalib_Rough(void) // 采样数据粗调,获取偏差值
+{
+ uint16_t i;
+ uint32_t sum = 0;
+ uint8_t ch = 0; // 备份通道
+
+ ch = R8_ADC_CHANNEL;
+
+ ADC_ChannelCfg(1); // ADC校准通道请选择通道1
+ R8_ADC_CFG |= RB_ADC_OFS_TEST; // 进入测试模式
+ R8_ADC_CONVERT = RB_ADC_START;
+ while(R8_ADC_CONVERT & RB_ADC_START);
+ for(i = 0; i < 16; i++)
+ {
+ R8_ADC_CONVERT = RB_ADC_START;
+ while(R8_ADC_CONVERT & RB_ADC_START);
+ sum += (~R16_ADC_DATA) & RB_ADC_DATA;
+ }
+ sum = (sum + 8) >> 4;
+ R8_ADC_CFG &= ~RB_ADC_OFS_TEST; // 关闭测试模式
+
+ R8_ADC_CHANNEL = ch;
+
+ return (2048 - sum);
+}
+
+/*********************************************************************
+ * @fn ADC_ExtSingleChSampInit
+ *
+ * @brief 外部信号单通道采样初始化
+ *
+ * @param sp - refer to ADC_SampClkTypeDef
+ * @param ga - refer to ADC_SignalPGATypeDef
+ *
+ * @return none
+ */
+void ADC_ExtSingleChSampInit(ADC_SampClkTypeDef sp, ADC_SignalPGATypeDef ga)
+{
+ R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
+ R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_BUF_EN | (sp << 6) | (ga << 4);
+}
+
+/*********************************************************************
+ * @fn ADC_ExtDiffChSampInit
+ *
+ * @brief 外部信号差分通道采样初始化
+ *
+ * @param sp - refer to ADC_SampClkTypeDef
+ * @param ga - refer to ADC_SignalPGATypeDef
+ *
+ * @return none
+ */
+void ADC_ExtDiffChSampInit(ADC_SampClkTypeDef sp, ADC_SignalPGATypeDef ga)
+{
+ R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
+ R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_DIFF_EN | (sp << 6) | (ga << 4);
+}
+
+/*********************************************************************
+ * @fn ADC_InterTSSampInit
+ *
+ * @brief 内置温度传感器采样初始化
+ *
+ * @param none
+ *
+ * @return none
+ */
+void ADC_InterTSSampInit(void)
+{
+ R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
+ R8_TEM_SENSOR = RB_TEM_SEN_PWR_ON;
+ R8_ADC_CHANNEL = CH_INTE_VTEMP;
+ R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_DIFF_EN | (3 << 4);
+}
+
+/*********************************************************************
+ * @fn ADC_InterBATSampInit
+ *
+ * @brief 内置电池电压采样初始化
+ *
+ * @param none
+ *
+ * @return none
+ */
+void ADC_InterBATSampInit(void)
+{
+ R8_TKEY_CFG &= ~RB_TKEY_PWR_ON;
+ R8_ADC_CHANNEL = CH_INTE_VBAT;
+ R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_BUF_EN | (0 << 4); // 使用-12dB模式，
+}
+
+/*********************************************************************
+ * @fn TouchKey_ChSampInit
+ *
+ * @brief 触摸按键通道采样初始化
+ *
+ * @param none
+ *
+ * @return none
+ */
+void TouchKey_ChSampInit(void)
+{
+ R8_ADC_CFG = RB_ADC_POWER_ON | RB_ADC_BUF_EN | (2 << 4);
+ R8_TKEY_CFG |= RB_TKEY_PWR_ON;
+}
+
+/*********************************************************************
+ * @fn ADC_ExcutSingleConver
+ *
+ * @brief ADC执行单次转换
+ *
+ * @param none
+ *
+ * @return ADC转换后的数据
+ */
+uint16_t ADC_ExcutSingleConver(void)
+{
+ R8_ADC_CONVERT = RB_ADC_START;
+ while(R8_ADC_CONVERT & RB_ADC_START);
+
+ return (R16_ADC_DATA & RB_ADC_DATA);
+}
+
+/*********************************************************************
+ * @fn TouchKey_ExcutSingleConver
+ *
+ * @brief TouchKey转换后数据
+ *
+ * @param charg - Touchkey充电时间,5bits有效, t=charg*Tadc
+ * @param disch - Touchkey放电时间,3bits有效, t=disch*Tadc
+ *
+ * @return 当前TouchKey等效数据
+ */
+uint16_t TouchKey_ExcutSingleConver(uint8_t charg, uint8_t disch)
+{
+ R8_TKEY_COUNT = (disch << 5) | (charg & 0x1f);
+ R8_TKEY_CONVERT = RB_TKEY_START;
+ while(R8_TKEY_CONVERT & RB_TKEY_START);
+ return (R16_ADC_DATA & RB_ADC_DATA);
+}
+
+/*********************************************************************
+ * @fn ADC_AutoConverCycle
+ *
+ * @brief 设置连续 ADC的周期
+ *
+ * @param cycle - 采样周期计算方法为(256-cycle)*16*Tsys
+ *
+ * @return none
+ */
+void ADC_AutoConverCycle(uint8_t cycle)
+{
+ R8_ADC_AUTO_CYCLE = cycle;
+}
+
+/*********************************************************************
+ * @fn ADC_DMACfg
+ *
+ * @brief 配置DMA功能
+ *
+ * @param s - 是否打开DMA功能
+ * @param startAddr - DMA 起始地址
+ * @param endAddr - DMA 结束地址
+ * @param m - 配置DMA模式
+ *
+ * @return none
+ */
+void ADC_DMACfg(uint8_t s, uint16_t startAddr, uint16_t endAddr, ADC_DMAModeTypeDef m)
+{
+ if(s == DISABLE)
+ {
+ R8_ADC_CTRL_DMA &= ~(RB_ADC_DMA_ENABLE | RB_ADC_IE_DMA_END);
+ }
+ else
+ {
+ R16_ADC_DMA_BEG = startAddr;
+ R16_ADC_DMA_END = endAddr;
+ if(m)
+ {
+ R8_ADC_CTRL_DMA |= RB_ADC_DMA_LOOP | RB_ADC_IE_DMA_END | RB_ADC_DMA_ENABLE;
+ }
+ else
+ {
+ R8_ADC_CTRL_DMA &= ~RB_ADC_DMA_LOOP;
+ R8_ADC_CTRL_DMA |= RB_ADC_IE_DMA_END | RB_ADC_DMA_ENABLE;
+ }
+ }
+}
+
+/*********************************************************************
+ * @fn adc_to_temperature_celsius
+ *
+ * @brief Convert ADC value to temperature(Celsius)
+ *
+ * @param adc_val - adc value
+ *
+ * @return temperature (Celsius)
+ */
+
+int adc_to_temperature_celsius(uint16_t adc_val)
+{
+ uint32_t C25 = 0;
+ int temp;
+
+ C25 = (*((PUINT32)ROM_CFG_TMP_25C));
+
+ /* current temperature = standard temperature + (adc deviation * adc linearity coefficient) */
+ temp = (((C25 >> 16) & 0xFFFF) ? ((C25 >> 16) & 0xFFFF) : 25) + \
+ (adc_val - ((int)(C25 & 0xFFFF))) * 10 / 27;
+
+ return (temp);
+}
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