Write Protect Command; Figure 43. Erase Memory Command Via Can: Device Side - ST STM32F105 Series Application Note

System memory boot mode

Hide thumbs Also See for STM32F105 Series:

Table of Contents

CAN bootloader

The STM32F105xx and STM32F107xx sends the messages as follows:

ACK message: Std ID = 0x43, DLC = 1, data[0] = ACK if content of the command is correct

and ROP is not active else data[0] = NACK

3.12

Write Protect command

The Write Protect command is used to enable the write protection for some or all Flash

memory sectors. When the bootloader receives the Write Protect command, it transmits the

ACK message to the host if ROP is disabled else it transmits NACK.

After the transmission of the ACK byte, the bootloader waits to receive the Flash memory

sector codes from the user.

At the end of the Write Protect command, the bootloader transmits the ACK message and

generates a system Reset to take into account the new configuration of the option byte.

Note:

On the STM32F105xx and STM32F107xx , the sector size is 4 Kbytes (2 pages) for the

Write Protect command.

58/83

Doc ID 14156 Rev 1

AN2662

Table of Contents

Show Quick Links

Table of Contents

Do you have a question about the STM32F105 Series and is the answer not in the manual?

Stm32f107 series