ST STM32F105 series

AN2662 DFU bootloader
Doc ID 14156 Rev 1 71/83
Figure 53. DFU_UPLOAD request: Device side
Figure 54. DFU_UPLOAD request: Host side
DFU_UPLOAD request
No
Ye s
Send the supported
wBlockNum == 0 ?
ROP Active?
No
Ye s
Status = errVENDOR
Send the requested
number of data bytes
No
Ye s
wBlockNum > 1?
command codes
Stall
State = dfuERROR
Current status is
dfuIDLE or dfuUPLOAD-IDLE
Stall
No
Acknowledge
the request
Ye s
DFU_UPLOAD request
No
Ye s
Get Device Status
Request acknowledged?
Read Protection
Read the requested
number of data bytes
No
Status == errVENDOR
?
Is active
Error