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Merge branch 'doc/fix_misleading_vref_to_vdd_in_dac_doc' into 'master'

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doc(dac): changed the misleading Vref to VDD

See merge request espressif/esp-idf!25393
This commit is contained in:
Kevin (Lao Kaiyao) 2023-08-18 18:50:18 +08:00
commit d7468803f2
2 changed files with 8 additions and 6 deletions
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7
docs/en/api-reference/peripherals/dac.rst
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@ -3,13 +3,14 @@ Digital To Analog Converter (DAC)
:link_to_translation:`zh_CN:[中文]`
{IDF_TARGET_DAC_CH_1: default = "GPIO25", esp32 = "GPIO25", esp32s2 = "GPIO17"}
{IDF_TARGET_DAC_CH_2: default = "GPIO26", esp32 = "GPIO26", esp32s2 = "GPIO18"}
{IDF_TARGET_DAC_CH_1: default = "Not Updated!", esp32 = "GPIO25", esp32s2 = "GPIO17"}
{IDF_TARGET_DAC_CH_2: default = "Not Updated!", esp32 = "GPIO26", esp32s2 = "GPIO18"}
{IDF_TARGET_DAC_REF_PIN: default = "Not Updated!", esp32 = "VDD3P3_RTC", esp32s2 = "VDD3P3_RTC_IO"}
Overview
--------
{IDF_TARGET_NAME} has two 8-bit DAC (digital to analog converter) channels respectively connected to {IDF_TARGET_DAC_CH_1} (Channel 1) and {IDF_TARGET_DAC_CH_2} (Channel 2). Each DAC channel can convert the digital value 0~255 to the analog voltage 0~Vref. The output voltage can be calculated as the following::
{IDF_TARGET_NAME} has two 8-bit DAC (digital to analog converter) channels respectively connected to {IDF_TARGET_DAC_CH_1} (Channel 1) and {IDF_TARGET_DAC_CH_2} (Channel 2). Each DAC channel can convert the digital value 0~255 to the analog voltage 0~Vref (The reference voltage 'Vref' here is input from the pin {IDF_TARGET_DAC_REF_PIN}, which ideally equals to the power supply VDD). The output voltage can be calculated as the following::
out_voltage = Vref * digi_val / 255

7
docs/zh_CN/api-reference/peripherals/dac.rst
View File

@ -3,13 +3,14 @@
:link_to_translation:`en:[English]`
{IDF_TARGET_DAC_CH_1: default = "GPIO25", esp32 = "GPIO25", esp32s2 = "GPIO17"}
{IDF_TARGET_DAC_CH_2: default = "GPIO26", esp32 = "GPIO26", esp32s2 = "GPIO18"}
{IDF_TARGET_DAC_CH_1: default = "Not Updated!", esp32 = "GPIO25", esp32s2 = "GPIO17"}
{IDF_TARGET_DAC_CH_2: default = "Not Updated!", esp32 = "GPIO26", esp32s2 = "GPIO18"}
{IDF_TARGET_DAC_REF_PIN: default = "Not Updated!", esp32 = "VDD3P3_RTC", esp32s2 = "VDD3P3_RTC_IO"}
概况
----
{IDF_TARGET_NAME} 有两个 8 位数模转换器 (DAC) 通道，分别连接到 {IDF_TARGET_DAC_CH_1}（通道 1）和 {IDF_TARGET_DAC_CH_2}（通道 2）。每个 DAC 通道可以将数字值 0~255 转换成模拟电压 0~Vref。输出电压可按以下方式计算::
{IDF_TARGET_NAME} 有两个 8 位数模转换器 (DAC) 通道，分别连接到 {IDF_TARGET_DAC_CH_1}（通道 1）和 {IDF_TARGET_DAC_CH_2}（通道 2）。每个 DAC 通道可以将数字值 0~255 转换成模拟电压 0~Vref （此处的 Vref 为 {IDF_TARGET_DAC_REF_PIN} 引脚输入的参考电压，一般来说其输入的电压值应等于电源电压 VDD）。输出电压可按以下方式计算::
out_voltage = Vref * digi_val / 255