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espressif / esp-hosted

Hosted Solution (Linux/MCU) with ESP32 (Wi-Fi + BT + BLE)
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esp32 and esp32c6 sdio register addresses are different #417

Closed dxzzxb closed 3 months ago

dxzzxb commented 3 months ago

For example, ESP_SLAVE_SLCHOST_BASE is 0x3FF55000 in the esp32 manual, but in my esp32c6 manual it is 0x60018000, but in esp_hosted_fg\host\linux\host_driver\esp32\sdio\esp_sdio_decl.h I only see #define ESP_SLAVE_SLCHOST_BASE 0x3FF55 000, this is on esp32c6 Can it work? I want to know why.

Snipaste_2024-06-28_11-35-53

SohKamYung-Espressif commented 3 months ago

@dxzzxb The ESP SDIO slave driver only cares about the lower 10 bits when the host wants to access the SDIO registers.

If you check esp_hosted_fg/host/linux/host_driver/esp32/sdio/esp_sdio_api.c, we apply ESP_ADDRESS_MASK (0x3FF) to the register value in esp_read_reg() and esp_write_reg().

We may do some clean-up in the header file to make this clearer.

dxzzxb commented 3 months ago

@dxzzxb The ESP SDIO slave driver only cares about the lower 10 bits when the host wants to access the SDIO registers.

If you check esp_hosted_fg/host/linux/host_driver/esp32/sdio/esp_sdio_api.c, we apply ESP_ADDRESS_MASK (0x3FF) to the register value in esp_read_reg() and esp_write_reg().

We may do some clean-up in the header file to make this clearer.

ok ,I got it! thanks for your reply