【Help】ADC acquisition

Aaaaaoooo

【Help】ADC acquisition [Copy link]

 

 

I want to use DIO0, 1, 2, 3ADC to collect four voltage values

Based on the routine peripheral_server_uart, the ADC configuration is changed

The value read out now is 3FFF

Is the configuration wrong?

蓝雨夜

Test the ADC UART project

Aaaaaoooo

Blue Rain Night published on 2021-5-18 10:39 Test the ADC UART project

Test that the data collected by ADC UART is correct

Now I want to give an external voltage instead of collecting the battery voltage, and the collected data is wrong

蓝雨夜

Sys_DIO_Config

Before Sys_ADC_Set_Config?

蓝雨夜

I tried DIO0 input

蓝雨夜

Up to about 2.0V

Aaaaaoooo

Blue Rainy Night published on 2021-5-18 15:01 The highest is about 2.0V

Yes, the problem has been solved. I exceeded the measurement range. Thank you. Thank you.

Now there is a new problem

I configured the interrupt for ADC channel 4, but now I can't access the interrupt

Aaaaaoooo

Does BATMON_ALARM_INT_ENABLE need to be enabled to enter the interrupt?

蓝雨夜

ADC_CONTINUOUS | //Continuous mode: only one channel is sampled (for testing purposes)

A channel?

Aaaaaoooo

Blue Rain Night published on 2021-5-18 15:32 ADC_CONTINUOUS |//Continuous mode: only one channel is sampled (for testing purposes) One channel?

ADC_NORMAL is all channels are sampled but only channel 4 interrupt is enabled

蓝雨夜

Aaaaaoooo Posted on 2021-5-18 15:29 Does BATMON_ALARM_INT_ENABLE need to be enabled to enter the interruption?

Turn on INT_EBL_BATMON_ALARM

蓝雨夜

Aaaaaoooo Published on 2021-5-18 15:46 ADC_NORMAL means all channels are sampled but only the interrupt of channel 4 is enabled

Why are some ADC channels interrupted and some not?

Aaaaaoooo

Blue Rain Night published on 2021-5-18 16:01 Why are some ADC channels interrupted and some not?

INT_EBL_BATMON_ALARM is on

All ADC interrupts used are enabled, but still cannot enter

The ADC_INT_ENABLE bit in the register is written as 0x01, which should be enabled. Why is it displayed as INT_DIS_ADC?

蓝雨夜

In the interrupt configuration, select the last channel of ELE.

蓝雨夜

Is ELE_ADC_CHANNEL the last channel?

Change this one

Aaaaaoooo

Blue Rain Night posted on 2021-5-18 17:02 Is ELE_ADC_CHANNEL the last channel? Try this one

This is the last channel. Changing this one won't work.

Is there something wrong with the configuration?

蓝雨夜

I can read the channel value here

Aaaaaoooo

Blue Rain Night posted on 2021-5-19 08:57 I can read the value of the channel here

Because I made changes based on the routine peripheral_server_uart, I saw that there are several configurations in APPinit that are different from ADCuart. Will these configurations affect the interrupt ADC?

蓝雨夜

Then check if the global interrupt is disabled?

Check if there are any resource conflicts.

Aaaaaoooo

Blue Rain Night posted on 2021-5-19 09:34 Then check if the global interrupt is turned off? Check if there are any other resource conflicts

Block sys_rffe_settxpower and you can enter the ADC interrupt. Why is this?