I’m trying to use an WizFi250-H with an Arduino Mega 2560 through the SPI interface. I’m using logic level converters on all signals between the WizFi250-H and the Mega2560. For the circuit I followed the reference schematic: UART1_RXD and URT1_TXD pulled up to 3.3v through 10K resistors, BOOT pin floating, and FUNCTION pin pulled up to 3.3V.
I checked with a scope the level of the SPI signals at the WizFi250 pins. SCK, CS, MOSI have pulses, but MISO is always at 0 .
When I try to use any of the example sketches included in the official WizFi Arduino library, the code stops during the wifi.init() e don’t go further.
I bought a second WizFi250-h module, and the behaviour is the same.
- Surely I’m doing something wrong, but what? Can you help me?
- Does the WizFi250-H require the use of the UART1_RXD and UART_TXD signals, or can I just use SPI?
Thanks in advance