From d1011ec1bf14daecb684e718cb971f66aa3b04f1 Mon Sep 17 00:00:00 2001
From: MacRsh <1063220965@qq.com>
Date: Mon, 22 May 2023 23:33:36 +0800
Subject: [PATCH] =?UTF-8?q?1.=E4=BC=98=E5=8C=96=E5=86=85=E9=83=A8=E6=B8=A9?=
 =?UTF-8?q?=E5=BA=A6=E4=BC=A0=E6=84=9F=E5=99=A8=E5=92=8C=E5=86=85=E9=83=A8?=
 =?UTF-8?q?=E5=8F=82=E8=80=83=E7=94=B5=E5=8E=8B=E8=AF=BB=E5=8F=96=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 bsp/wch/driver/drv_adc.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/bsp/wch/driver/drv_adc.c b/bsp/wch/driver/drv_adc.c
index 753fbb2..41b1f08 100644
--- a/bsp/wch/driver/drv_adc.c
+++ b/bsp/wch/driver/drv_adc.c
@@ -65,11 +65,17 @@ mr_err_t ch32_adc_channel_configure(mr_adc_t adc, mr_uint16_t channel, mr_state_
 	{
 		RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
 		GPIOx = GPIOB;
-	} else
+	} else if (channel <= 15)
 	{
 		RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
 		GPIOx = GPIOC;
 	}
+	else if(channel <= 17)
+	{
+		ADC_TempSensorVrefintCmd(ENABLE);
+	}
+	else
+		return -MR_ERR_INVALID;
 
 	if (state == MR_ENABLE)
 		GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
@@ -93,6 +99,9 @@ mr_uint32_t ch32_adc_read(mr_adc_t adc, mr_uint16_t channel)
 	struct ch32_adc *hw = (struct ch32_adc *)adc->device.data;
 	mr_uint32_t data = 0;
 
+	if (channel >17)
+		return 0;
+
 	ADC_RegularChannelConfig(hw->hw_adc.Instance, channel, 1, ADC_SampleTime_239Cycles5);
 	ADC_SoftwareStartConvCmd(hw->hw_adc.Instance, ENABLE);
 	while (! ADC_GetFlagStatus(hw->hw_adc.Instance, ADC_FLAG_EOC));