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hi3516ev200/sc2235: repeat DVP pad setup after stream start #233

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Merged
openipc-ai merged 1 commit into from
Sep 28, 2026
Merged

hi3516ev200/sc2235: repeat DVP pad setup after stream start #233

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10 changes: 10 additions & 0 deletions libraries/sensor/hi3516ev200/smart_sc2235/sc2235_sensor_ctl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -331,6 +331,16 @@ void sc2235_linear_1080p30_init(VI_PIPE ViPipe)
delay_ms(20);
sc2235_write_register(ViPipe, 0x0100, 0x01);

// On the Imou Cue 2 (IPC-C22EN) the sequence above alone leaves the
// SoC with no pixel clock. Its vendor (Dahua) firmware repeats the DVP
// pad setup once the sensor is streaming, with stronger drive, and
// then starts streaming again.
delay_ms(20);
sc2235_write_register(ViPipe, 0x3d08, 0x01);
sc2235_write_register(ViPipe, 0x3640, 0x01);
sc2235_write_register(ViPipe, 0x3641, 0x02);
sc2235_write_register(ViPipe, 0x0100, 0x01);

printf("=== Smart SC2235_1080P_30FPS_10BIT_LINE_Init_OK!===\n");

return;
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