No serial output

[goran-mahovlic]

This simple example does not return serial

void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(19200); }

void loop() { Serial.print("1"); Serial.print("2"); Serial.print("3"); Serial.print("4"); Serial.println("5"); }

and this one is working

// initialize serial communication at 9600 bits per second: Serial.begin(19200); }

void loop() { Serial.print("1"); Serial.print("2"); Serial.print("3"); Serial.println("4"); }

[emard]

Both examples work on ulx2s You probably use HEX protocol (blind upload, no CRC) and noisy serial port which.

It is essential to get BIN protocol in ujprog working on your board because it has CRC and assures clean upload.

ujprog is tested only on 115200, and may require tweaking the timeouts for 19200

[goran-mahovlic]

and now with 115200 and with binary CRC upload serial is still not working good

when I try example

void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(115200); }

void loop() { Serial.print("1"); Serial.print("2"); Serial.print("3"); Serial.print("4"); Serial.println("5"); }

I got only one response from serial and it breaks and stops sending

[emard]

On Thu, Aug 13, 2015 at 09:35:16AM -0700, Goran Mahovlic wrote:

and now with 115200 and with binary CRC upload serial is still not working good

when I try example

void setup() { // initialize serial communication at 9600 bits per second: Serial.begin(115200); }

if this with delay is working then f32c is probably OK, but usbserial firmware has problems keeping up with "high" speed of 115200 baud

void loop() { Serial.print("1"); delay(1000); Serial.print("2"); delay(1000); Serial.print("3"); delay(1000); Serial.print("4"); delay(1000); Serial.println("5"); delay(1000); }

I got only one response from serial and it breaks and stops sending

---

Reply to this email directly or view it on GitHub: https://github.com/f32c/arduino/issues/6#issuecomment-130752599

[goran-mahovlic]

I have tested, and serial is working normaly under linux, but on windows it is not working, I have talked with emard and he sugested to refresh USB to serial after loading sketch. I have found microsoft tool that do this from console it is called devcon after disabling and enabling USB serial is working... It is hard to get this tool

http://www.robvanderwoude.com/devcon.php http://techlikes.com/2010/09/25/devcon-problem-in-windows-7-solved.html http://karuppuswamy.com/wordpress/2010/06/05/how-to-plug-in-and-plug-out-usb-device-through-command-line-in-windows/

after I did this serial started to work https://yadi.sk/i/2S0jrrtVkvvak

Is there any way that we automatize two commands ...

[emard]

Goran

Please note that this issue is probably due to your numato usb-serial onboard PIC firmware is buggy.

You might like to connect standard ftdi 3.3 usbserial to PMOD connector and you will see all usbserial issues will be gone.

If it is so, you can send to numato bug report on the PIC firmware serial problem