Arduino for STM32

stevestrong

You use Arduino_STM32 or STM32duino?
Please post the complete flashing process output.

stevestrong

The error message is clear: you have to cast the second parameters of the function calls to

byte error = eep.write( 0, (byte*)test, sizeof(test));

and

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eep.read( 0, (byte*)bufer, sizeof(test));

In addition, you have to change the size of buffer to:

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char buffer[sizeof(test)+1];

stevestrong

Try this one:

STM32_SPIFlash.zip: (1.37 KiB) Downloaded 552 times

This is set to use SPI1 and chip select pin PA4.

stevestrong

Have a look into these files: https://github.com/adafruit/Adafruit_SPIFlash/tree/master/src/spi or here: http://www.rinkydinkelectronics.com/download.php?f=SPIflash.zip or here: https://github.com/nimaltd/w25qxx (in this case you have to replace the HAL function calls to corresponding libmaple funct...

stevestrong

Juraj wrote: ↑Wed May 26, 2021 5:16 am @stevestrong the code doesn't use the WebServer library

Well, then what about this sentence:

exdes wrote: ↑Tue May 25, 2021 5:00 pm I am using the libraries EthernetWebServer_SSL_STM32 & SdFat.

stevestrong

I think you should post an issue on the github page of khoih.

stevestrong

A DTR pulse is not enough, a magic sequence should be also transmitted over USB serial.
You can try to manually reset the board short before you upload the code.

stevestrong

I wonder which type of eeprom do you use, is it the same device with two addresses? It is not common... Have you tried to access the 0x50 address? The smaller value the pull-up resistor the better, so leave it 3.3k or 2.7k. But I do not think that this really matters as long as the scanner finds it....

stevestrong

For slow mode you just leave I2C_FAST_MODE away:

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TwoWire WIRE2 (2);
#define Wire WIRE2

Be sure that you connect to PB10/11 pins.

stevestrong

Have you tried to run the I2C scanner with the second I2C port?
Does it recognize your EEPROM? On which address?

Arduino for STM32

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Re: Multiple i2c port drive & Multiple SPI port drive