Arduino for STM32

Pito

I think the NEO module sends a message every second by default. So I would not expect NEO's TX will continual lit. BPills Serial1 TX shall blink when your code sends something out (otherwise LED is off). PS: remove both delay() in your loop() code.. PPS: as I wrote above your LEDs have to be wired t...

Pito

I've been sending binary packets to the NEO7 via Serial1 (9600).
I think you have to switch it to the NMEA instead (unless it is done in your driver).
How?? Hmm..

Pito

I've been using bluepill with NEO7M.
Different code however (it writes directly in binary some settings).

Put 470-1kohm resistors in series with Rx/Tx lines to be safe.

Troubleshooting serial is always a mess

Pito

Fastest way - you may add LEDs (via 1k resistors) on the RX and TX lines of the Serial1.
Active is low with serial.
Vcc--[1k]--|>|----RX/TX
You will see blinks when data on Rx or Tx

Btw is your NEO6 5V or 3.3V??

Pito

Doublecheck Rx/Tx lines (I always put 470ohm resistors in series with both rx/tx in case I messed up the wiring, btw).
Also doubleckeck whether Neo6 is in binary mode (there are two modes afaik, text and binary).

Pito

Add the test for Serial (usb)..

Code: Select all

void setup() {
    Serial1.begin(9600);
    Serial.begin(115200);
    delay(2000);
    Serial.println("GPS NEO6N starts..");
}

What do you get now?

Pito

http://docs.leaflabs.com/static.leaflab ... /iwdg.html
http://docs.leaflabs.com/static.leaflab ... /iwdg.html

Pito

This is one of the best RTOSes you may get for F407:

http://chibios.org/dokuwiki/doku.php

Best way to start is with ChibiStudio:

http://chibios.org/dokuwiki/doku.php?id ... udio:start

The author of Chibios works for STM, afaik.

Pito

That description of your problem is not enough to help you.
Porting existing libraries into an Rtos is not easy - you have to create tasks which interacts, etc.
Best you will publish your entire code and it could be somebody helps you then..

Pito

Those pins have some limitation - speed and fanout (they are weaker). It was discussed how to enable them on the old forum many times. https://stm32duinoforum.com/forum/index_php.html I think the pins with 32kHz resonator should work when oscillator disabled. Mind there are capacitors to the ground,...

Arduino for STM32

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