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STV82X7 データシート(PDF) 53 Page - STMicroelectronics |
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STV82X7 データシート(HTML) 53 Page - STMicroelectronics |
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53 / 156 page  53/156 STV82x7 I²C Interface 11.3 Process Flow during Patch Loading and DSP Initialization Patch loading and DSP firmware initialization are shown in Figure 32 Figure 32: Patch Loading and DSP Initialization HW_RESET bit = 0 Firmware Initialization Patch Loading Load patch file in memory Firmware Init phase Write patch version (reg FFh = xxh) Firmware Initialization finished (INIT_MEM = 1) (Software launch patch loading) (This action is included in the Patch load file) NOTE 1 NOTE 1: The customer can also set HW_RESET = 1 here. (bit 2 in HOST_CMD register) (Duration of Firmware initialization is less than 1ms) (Firmware set INIT_MEM = 1 (done inside patch file) (bit 0 in DSP_STATUS register)) (Software must test INIT_MEM = 1 before continuing) (bit 2 in HOST_CMD register) (DSP STOP) HW_RESET bit = 1 (bit 2 in HOST_CMD register) |
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