| 전자부품 데이터시트 검색엔진 |
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RM0319 데이터시트(PDF) 49 Page - STMicroelectronics |
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RM0319 데이터시트(HTML) 49 Page - STMicroelectronics |
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49 / 368 page ![]() RM0319 BootROM Doc ID 022640 Rev 3 49/368 Figure 12. USB boot System initialization to Normal mode Initialize UDC controller Initialize USB state machine (GET_CMD) Wait for command on BULK out End point 2 from USB host Decode the command Change state machine (GET_DATA) Wait for expected number of bytes from Host. Receive DDR driver and change state to Exec Execute DDR driver and jump back to BootROM Change state machine (GET_CMD) Wait for command on BULK out End point 2 from USB host Decode the command Change state machine (GET_DATA) Wait for expected number of bytes from Host. Receive firmware and jump to firmware in DDR Receiving DDR driver Receiving Firmware |
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