MCP23S17 lib not working

[aeropagz]

The issue

It is not possible to configure the MCP23S17 chip. Writes are ignored.

    ESP_ERROR_CHECK(mcp23x17_port_set_mode(&dev, 0xFFFF));
    ESP_ERROR_CHECK(mcp23x17_port_get_mode(&dev, &val));

    ESP_LOGI(TAG, "Mode %d\n", val);

val is 0x7FFF which is unexpected. Tested with different MCP23S17 chips.

Which SDK are you using?

esp-idf

Which version of SDK are you using?

4.4

Which build target have you used?

• [X] esp32
• [ ] esp32s2
• [ ] esp32s3
• [ ] esp32c2
• [ ] esp8266
• [ ] other

Component causing the issue

mcp23S17

Anything in the logs that might be useful for us?

No response

Additional information or context

No response

Confirmation

• [X] This report is not a question nor a request for drivers.

[aeropagz]

Solved the issue by lower the SPi Frequency to SPI_MASTER_FREQ_8M