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koendv / SerialWireOutput

Serial Wire Output (SWO) library for STM32duino arm Arduinos
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STM32F407VG Serial Monitor Not Working #3

Closed Sobhit25 closed 4 years ago

Sobhit25 commented 4 years ago

I tried serial print on my board STM32F407VG, it was blank. I installed your package and tried, still its blank, but the led blink program executes.

I also tried different baud rates. I want to complete a project but my stm32duino doesn't let me debug it, the serial monitor is blank.

My upload method is stm32cubeprogrammer(SWD). Other are Serial and DFU but they fail to upload. I need a FTDI for that, but I wanted to know if there is a solution in this way(Usind SWD)

koendv commented 4 years ago

On Sat, 03 Oct 2020 19:54:56 -0700 Sobhit25 notifications@github.com wrote:

I tried serial print on my board STM32F407VG, it was blank. I installed your package and tried, still its blank, but the led blink program executes.

I also tried different baud rates. I want to complete a project but my stm32duino doesn't let me debug it, the serial monitor is blank.

My upload method is stm32cubeprogrammer(SWD). Other are Serial and DFU but they fail to upload. I need a FTDI for that, but I wanted to know if there is a solution in this way

What debugger probe are you using?

There are at least three ways to print debugging output:

Sobhit25 commented 4 years ago

I am only using USB A TO MINI B. But I have an onboard debugger, STlinkV2

Sobhit25 commented 4 years ago

If this won't do, could you please explain to me the steps and if any probe required. Please. ThankYou

koendv commented 4 years ago

On Sun, 04 Oct 2020 21:46:42 -0700 Sobhit25 notifications@github.com wrote:

If this won't do, could you please explain to me the steps and if any probe required. Please. ThankYou

There are three ways to print debug output:

SWO requires that a connection between the SWO output pin of the target, and the SWO input pin of the on-board ST-Link. Also, you need to configure the baudrate on in target source and debugger.

Unless you are certain this connection is on your board, I would forget it.

Segger RTT only works on German "Segger J-Link" debuggers, not on ST-Link. I would forget it.

Semihosting needs the same connection your ST-Link uses to download firmware to the board. This ought to work. If you are using arduino, try the examples in https://github.com/koendv/STM32duino-Semihosting

koen