From de9ab77abcddc077d077e6cad0158c2cf12c40a8 Mon Sep 17 00:00:00 2001 From: jzlv Date: Wed, 10 Nov 2021 16:49:40 +0800 Subject: [PATCH] [doc][dac] update dac demo readme --- examples/dac/dac_dma/readme.md | 5 +++++ examples/dac/dac_mono_play_form_flash/readme.md | 5 +++++ examples/dac/dac_poll/readme.md | 5 +++++ 3 files changed, 15 insertions(+) diff --git a/examples/dac/dac_dma/readme.md b/examples/dac/dac_dma/readme.md index c6707d83..d132a1f0 100644 --- a/examples/dac/dac_dma/readme.md +++ b/examples/dac/dac_dma/readme.md @@ -1,3 +1,8 @@ +- 将 **CONFIG_GPIO11_FUNC** 设置成 **GPIO_FUN_DAC** +- 如果使用外部参考电压，将 **CONFIG_GPIO7_FUNC** 设置成 **GPIO_FUN_ADC** +- 设置 **BSP_DAC_CLOCK_SOURCE** 为 **ROOT_CLOCK_SOURCE_AUPLL_24000000_HZ** +- 设置 **BSP_DAC_CLOCK_DIV** 为 **2**，能够得到500KHZ + ```bash $ make APP=dac_dma BOARD=bl706_iot diff --git a/examples/dac/dac_mono_play_form_flash/readme.md b/examples/dac/dac_mono_play_form_flash/readme.md index e4dae772..ef0937af 100644 --- a/examples/dac/dac_mono_play_form_flash/readme.md +++ b/examples/dac/dac_mono_play_form_flash/readme.md @@ -1,3 +1,8 @@ +- 将 **CONFIG_GPIO11_FUNC** 设置成 **GPIO_FUN_DAC** +- 如果使用外部参考电压，将 **CONFIG_GPIO7_FUNC** 设置成 **GPIO_FUN_ADC** +- 设置 **BSP_DAC_CLOCK_SOURCE** 为 **ROOT_CLOCK_SOURCE_AUPLL_12288000_HZ** +- 设置 **BSP_DAC_CLOCK_DIV** 为 **23**，能够得到16KHZ + ```bash $ make APP=dac_mono_play_form_flash BOARD=bl706_iot diff --git a/examples/dac/dac_poll/readme.md b/examples/dac/dac_poll/readme.md index 9ba35492..dd906d5d 100644 --- a/examples/dac/dac_poll/readme.md +++ b/examples/dac/dac_poll/readme.md @@ -1,3 +1,8 @@ +- 将 **CONFIG_GPIO11_FUNC** 设置成 **GPIO_FUN_DAC** +- 如果使用外部参考电压，将 **CONFIG_GPIO7_FUNC** 设置成 **GPIO_FUN_ADC** +- 设置 **BSP_DAC_CLOCK_SOURCE** 为 **ROOT_CLOCK_SOURCE_AUPLL_24000000_HZ** +- 设置 **BSP_DAC_CLOCK_DIV** 为 **2**，能够得到500KHZ + ```bash $ make APP=dac_poll BOARD=bl706_iot