CPCd 4.7.1

Changed in release 4.7.1

• Added option to disable Multicast; applications attempting to open a Multicast endpoint will now fail as expected.

CPCd 4.6.2

Changed in release 4.6.2

• CPCd now defaults the SPI bitrate to 1 MHz when unspecified.

Fixed in release 4.6.2

• Fixed issue in cpcd where applications with "reset on disconnect" (e.g., Wi-SUN RCP) caused it to enter an assert loop if stopped during restart.

Compatibility

• sisdk version 2024.6

CPCd 4.7.0

Fixes & Improvements 4.7.0

• SPI Bitrate Configuration

  • Made SPI bitrate configuration optional.
  • Default bitrate is now set to 1 MHz when unspecified.

• CPC Protocol Update

  • Fixed an issue with nonce overflow detection logic.
  • Protocol version bump required due to this change.

• UART Bootloader (XMODEM) Fix

  • Resolved a problem where XMODEM bootloader detection could cause CPCd to hang.

Compatibility

• sisdk version 2024.6 and later
• gsdk version 4.4 and later

CPCd 4.5.3

Fixed in release 4.5.3

• Guaranteed that driver_kill() is called only once during teardown to avoid concurrent or multiple invocations.
• Fixed potential overflow by preventing data transmission beyond the tx_buffer when the received length
  exceeds 4 kB.
• After timeout, the system now verifies GPIO interrupt state to handle cases where OS scheduling delays
  cause missed interrupt detection.
• Fixed an issue with the firmware upgrade where some Linux SPI drivers would skip over a transfer of 0 bytes.
• Fixed a rare race condition in the SPI driver on systems with high interrupt latency which could lead to CPC system
  losing communication with the host.
• Set the default SPI bitrate to 1 MHz when it is unspecified.

CPCd 4.4.6

Fixed in release 4.4.6

• Fixed a bug where CPC daemon incorrectly believed the interrupt was not asserted in time.

CPCd 4.6.1

Fixed in release 4.6.1

• A security issue has been identified and fixed in the SPI interface, preventing a data leak vulnerability that could have allowed an attacker to receive information stored on the stack.
• Fixed the CPC version reported and displayed by CPCd.

CPCd 4.6.0

Changed in release 4.6.0

• Introduced experimental support for NETLINK-SDIO on the SiWx917m platform.
• Increased the maximum supported SPI USART bitrate, allowing the Host to configure higher data transfer speeds for improved
  performance.
• Enhanced CPCd error handling for improved management of invalid packets received
• Refined the error messages printed by CPCd for improved clarity.

Fixed in release 4.6.0

• Fixed an issue where some Linux SPI drivers would skip over a transfer of 0 bytes. This caused CPCd and secondary
  to lose synchronization and cause a “The IRQ it stuck abnormally long in the de-asserted state."
• Fixed a rare race condition in the SPI driver on systems with high interrupt latency which could lead to CPC system
  losing communication with the host.
• Resolved an issue in CPC Journal where the ID and timestamp were displayed incorrectly, ensuring accurate data
  representation.

CPCd 4.4.5

Fixed in release 4.4.5

• Fixed a rare race condition in the SPI driver on systems with high interrupt latency
  which could lead to CPC system loosing communication with the host.
• Fixed an issue where some Linux SPI drivers would skip over a transfer of 0 bytes.
  This caused the primary and secondary to lose synchronization and cause a
  "The IRQ it stuck abnormally long in the de-asserted state.".

CPCd 4.5.2

Fixed in release 4.5.2

• Removed limitation on socket buffer when writing to endpoint using libcpc.
• Improved various warning message displayed

CPCd 4.5.1

Fixed in release 4.5.1

• Resolved the issue with the CPCd version in the Debian package.
• Fixed an issue where the value of errno was overwritten resulting in an endpoint being closed.