ESP32 Forum

mzimmers

I figured it out with help from the tools example -- I needed to have my ack settings as follows: err = (i2c_master_start(i2cCommand)); err = (i2c_master_write_byte(i2cCommand, I2C_MCP7940_W, ACK_CHECK_EN)); err = (i2c_master_write_byte(i2cCommand, 0x00, ACK_CHECK_EN)); err = (i2c_master_start(i2cCo...

mzimmers

Hi all - I'm porting some code to the ESP32. The app connects to an external RTC https://www.mouser.com/datasheet/2/268/25010A-71550.pdf . I'm trying to convert its primitive functions to the IDF. This is the existing sequence for a register read: // uint8_t result = 0; // SI2C_Start(); // SI2C_Writ...

mzimmers

Hi Sprite - I'm not ruling out the error occurring somewhere else, but...it only manifests when I enable that function. EDIT: I've done some more looking at this, and the problem doesn't occur if I disconnect all the peripherals (LEDs, buttons, etc.) How these connections could result in a WDT trigg...

mzimmers

Hi all - I've been fighting this problem for days, and am out of ideas. I am porting an app that is currently running, when a certain code passage looks like this: #if 0 // mzimmers MCP7940_Init(); (I use the #if 0 to disable sections that I haven't finished yet.) But if I enable this function, like...

mzimmers

Oh, that's perfect:

Code: Select all

#include "rom/ets_sys.h"
void delay_milliseconds(uint64_t ms) {
    uint64_t us = ms * 1000;
    if (ms < 1000) {
            ets_delay_us(us);
    } else {
        vTaskDelay((ms) / portTICK_PERIOD_MS);
    }
}

Thanks, chegewara.

mzimmers

Hi all - The app I'm porting to the ESP32 needs relatively short (<1ms) delays. Clearly the vTaskDelay() function won't work for this. I was looking at the docs regarding General Purpose Timers. 1. is this the right component to use? 2. from the docs (and the example), it's not clear to me how I spe...

mzimmers

Hi bignacio -

Yes, I have a launch.json file. I'm only opening one project.

The behavior has changed -- now when I press F5, I get an error "The preLaunchTask 'C/C++: arm-none-eabi-g++ build active file' terminated with exit code -1.

Not sure what I've done to introduce this behavior...

mzimmers

Hi bignacio - sorry for the late reply; lots of unrelated tasks going on right now. My current issue with the debugger is when I get to the step where I press F5, it prompts me to select an environment, and the only choices are: C++ (GDB/LLDB) C++ (Windows) I imagine this is something to do with a c...

mzimmers

Hi all - I thought I had my IDE set up properly, but now I'm not so sure. I configured it according to the instructions, and can now build and flash my app. I wanted to try an example project, so I opened that folder, and to my surprise, the system couldn't find the header files within the IDF. Doin...

mzimmers

Hi all - I'm porting an app to the ESP32. It currently stores all of its configuration settings in a struct, which it reads and writes in its entirety. I can read and write the blob from the app, using NVS calls. What I need to do is figure out how to initialize it. My original idea is to write a se...

Search found 643 matches

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