Release Content

This document provides the Release Notes for HCM511SAB. The current version includes the following software version information.

Matters Needing Attention

1. SN 1: HCM511SAB is a 512KB flash version of the HCM511S series.
2. SN 2: This RN instruction only includes the change points from HCM511SABR01A02K05 to HCM511SABR01A03K05.
3. SN 3: According to the latest naming rule, a size term for Flash partitions has been added to the naming, where K05 indicates that this is a 512KB Flash module.
4. SN 4: For the latest version of HCM511SABR01A03K05, the query result for AT+QSUB should be V04.

Release History

Firmware Release History

New Features

HCM511SABR01A03K05 — New Features

• ADV CONFIG — Add AT+QBLEADVCHL command to set broadcast channel.

Improved Features

HCM511SABR01A03K05 — Improved Features

• CMD — Regarding the notify or CMD command for characters "?": the problem of not being able to send, in the character parsing function for char "?" restrictions on parameter transmission have been added.
• PIN CODE — In response to the Bluetooth compatibility issue of PIN code in iOS system, the security level of PIN code has been enhanced and PIN code encryption connection has been set.
• ADV — Sort the ADV channel selection cmd before the adv cmd in the cmd table.
• STACK — Increase the size of the memory pre allocated stack and optimize the use of stack space in Bluetooth events.
• IOS — Fix the issue of iOS system Bluetooth unable to display the modified device name.
• GATT — Add a fourth optional parameter to the QBLEGATTCNTFCFG instruction to be compatible with the notify process of different protocol stacks.
• MAC — Add scan mode MAC deduplication function.

Known Issues

• [1] HCM511S adopts an PCB antenna with a maximum transmission power of 6 dBm.

Functions List