STM32W108B-SK STMicroelectronics, STM32W108B-SK Datasheet - Page 13

• Manufacturer Part Number: STM32W108B-SK
• Description: STARTER KIT FOR STM32W108
• Manufacturer: STMicroelectronics
• Series: STM32r
• Type: MCUr

Specifications of STM32W108B-SK

• Featured Product: STM32 Cortex-M3 Companion Products
• Contents: Board
• Silicon Manufacturer: ST Micro
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: STM32
• Silicon Family Name: STM32W108xx
• Kit Contents: Board
• Features: IEEE
• Mfg Application Notes: STM32W108 Adjacent Channel Rejection Measurements
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: *
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

AN3262
Figure 15. G
3.4
R
The R
memory and the information block (System memory or option byte areas).
When the bootloader receives the R
application. After sending the ACK byte, the bootloader waits for an address (4 bytes, where
Byte 1 is the address MSB and Byte 4 is the LSB) and a checksum byte. Then it checks the
received address. If the address is valid and the checksum is correct, the bootloader
transmits an ACK byte, otherwise it transmits a NACK byte and aborts the command.
When the address is valid and the checksum is correct, the bootloader waits for the number
of bytes to be transmitted – 1 (N bytes) and for its complemented byte (checksum). If the
checksum is correct, it then transmits the needed data ((N + 1) bytes) to the application,
starting from the received address. If the checksum is not correct, it sends a NACK before
aborting the command.
The host sends bytes to the STM32 as follows:
ET
EAD
ID packet example (broadcast)
Bytes 1-2:
Wait for ACK
Bytes 3 to 6:
Byte 7:
Wait for ACK
Byte 8:
Byte 9:
EAD
M
M
EMORY
EMORY
command reads data from any valid memory address in RAM, Flash
command
0x11+0xEE
Start address (Byte 3 is MSB and Byte 6 is LSB)
Checksum (XOR value of Bytes 3 to 6)
The number of bytes to be read – 1 (0 < N ≤ 95);
Checksum (XOR value (complement) of Byte 8)
Doc ID 17845 Rev 2
EAD
M
EMORY
command, it transmits the ACK byte to the
Bootloader command set
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