ESP32 Forum

Posted: **Tue Mar 22, 2022 10:10 am**

Hello,

Using the ADC DMA example (https://github.com/espressif/esp-idf/tr ... c/dma_read)

I am trying to get the output (within the ESP-IDF Monitor) to display on the same line i.e. no output on a new line.

I have tried using the \r carriage return format specifier, but output happens.

Code: [Select all] [Expand/Collapse]

for (int i = 0; i < ret_num; i += ADC_RESULT_BYTE)
            {
                adc_digi_output_data_t *p = (void *)&result[i];
                printf("value %d\r", p->type1.data);
                fflush(stdout)

GeSHi © Codebox Plus Extension

Thank you in advance
George Stefanovski

Posted: **Tue Mar 22, 2022 8:06 pm**

Its annoying, but for some reason print requires "\n" to flush to console.
You could use uart_write_bytes instead, but that requires to init and install UART port.

Posted: **Wed Mar 23, 2022 1:11 am**

I think that's standard posix behaviour... you may be able to use fflush(stdout) to flush the line, or use setvbuf() to make stdout unbuffered.

Posted: **Wed Mar 23, 2022 5:47 am**

Thank you

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