Firmware Update from Host#

This section provides a reference to the APIs used to perform firmware updates from the host.

Functions#

sl_status_t

sl_si91x_fwup_start(uint8_t *rps_header)

Send the RPS header content of firmware file.This is a blocking API.

sl_status_t

sl_si91x_fwup_load(uint8_t *content, uint16_t length)

Send the firmware file content.This is a blocking API.

sl_status_t

sl_si91x_fwup_abort()

This API is used to abort the firmware update process on the SiWx91x device.

sl_status_t

sl_si91x_bl_upgrade_firmware(uint8_t *firmware_image, uint32_t fw_image_size, uint8_t flags)

Flashes firmware to Wi-Fi module via bootloader.

sl_status_t

sl_si91x_set_fast_fw_up(void)

Set fast firmware upgrade.

Function Documentation#

sl_si91x_fwup_start#

sl_status_t sl_si91x_fwup_start (uint8_t * rps_header)

Send the RPS header content of firmware file.This is a blocking API.

Parameters

Type	Direction	Argument Name	Description
uint8_t *	[in]	rps_header	Pointer to the RPS header content.

Returns

sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.

sl_si91x_fwup_load#

sl_status_t sl_si91x_fwup_load (uint8_t * content, uint16_t length)

Send the firmware file content.This is a blocking API.

Parameters

Type	Direction	Argument Name	Description
uint8_t *	[in]	content	Pointer to the firmware file content.
uint16_t	[in]	length	Length of the content

Returns

sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.

sl_si91x_fwup_abort#

sl_status_t sl_si91x_fwup_abort ()

This API is used to abort the firmware update process on the SiWx91x device.

This is a blocking API.

Pre-conditions:
- sl_si91x_fwup_load should be called before this API.

Returns

sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.

Note

Only after successful completion of firmware download using sl_si91x_fwup_load API, the user can call the sl_si91x_fwup_abort API.
Ensure to call this abort API before performing a Soft / Hard reset of the SiWx91x device. if not called before soft/hard reset firmware update process won't be aborted.

sl_si91x_bl_upgrade_firmware#

sl_status_t sl_si91x_bl_upgrade_firmware (uint8_t * firmware_image, uint32_t fw_image_size, uint8_t flags)

Flashes firmware to Wi-Fi module via bootloader.

Parameters

Type	Direction	Argument Name	Description
uint8_t *	[in]	firmware_image	Pointer to firmware.
uint32_t	[in]	fw_image_size	Size of firmware image..
uint8_t	[in]	flags	Flags indicating chuck position in file 0 = Middle of file 1 = Start of file 2 = End of file

Returns

sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.

sl_si91x_set_fast_fw_up#

sl_status_t sl_si91x_set_fast_fw_up (void )

Set fast firmware upgrade.

Parameters

Type	Direction	Argument Name	Description
void	[in]

Returns

sl_status_t. See https://docs.silabs.com/gecko-platform/4.1/common/api/group-status for details.