Very nice Nii!
On 8/6/20, Nii Jyeni <niijy...@hotmail.com> wrote: > This board is made by myself, the MCU model is STM32F429IIT6, and the > configuration file refers to the STM32F429i-disco board. > At present, LAN, FLASH, SDRAM, and GPIO have all passed the test, and other > functions are still being tested. >> 2020年8月6日 下午7:32，Alan Carvalho de Assis <acas...@gmail.com> 写道： >> >> Hi Nii, >> >> What board are you using? It appears like an incorrect ADC board >> configuration. >> >> The analog value for channels 4 and 5 are changing a little bit from >> each sampling, but they appear to make sense. >> >> Try to isolate the issue, you can start with a single channel, start >> without DMA, etc. >> >> Also enabling the DEBUG ADC could give you some hints. >> >> BR, >> >> Alan >> >> On 8/6/20, Nii Jyeni <niijy...@hotmail.com> wrote: >>> I found a strange problem when using the latest source code to test the >>> ADC >>> example. The analog value can be obtained when the ADC example is run >>> for >>> the first time. When the ADC example is run again, it is blocked and it >>> looks like it is dead. But send Ctrl+C to the console can terminate it. >>> >>> OS:MacOS >>> Nuttx:nightly >>> MCU:stm32f429iit6 >>> Board:customize >>> >>> NuttShell (NSH) NuttX-9.1.0 >>> nsh> adc -n 2 >>> adc_main: g_adcstate.count: 2 >>> adc_main: Hardware initialized. Opening the ADC device: /dev/adc0 >>> Sample: >>> 1: channel: 4 value: 3091 >>> 2: channel: 5 value: 3782 >>> Sample: >>> 1: channel: 4 value: 3192 >>> 2: channel: 5 value: 3612 >>> nsh> adc -n 2 >>> adc_main: g_adcstate.count: 2 >>> adc_main: Hardware initialized. Opening the ADC device: /dev/adc0 <— >>> terminated by send ctrl + c >>> nsh> adc -n 2 >>> adc_main: g_adcstate.count: 2 >>> adc_main: Hardware initialized. Opening the ADC device: /dev/adc0 <— >>> terminated by send ctrl + c >>> nsh> >>> >>> This is the configuration information about ADC that I am using: >>> CONFIG_STM32_ADC1=y >>> CONFIG_STM32_ADC1_DMA=y >>> CONFIG_STM32_TIM1=y >>> CONFIG_STM32_TIM1_ADC=y >>> CONFIG_EXAMPLES_ADC=y >>> CONFIG_EXAMPLES_ADC_GROUPSIZE=3 >>> CONFIG_ADC=y >>> >>> Does anyone know what is going on? and how to solve this problem. > >
