Dear Team,
We are using MIMX8MM6CVTKZAA in our design and we are able to bring up LCD and working fine. But we observed there is a flickering in intial/Fresh bootup for few times (2-3 times) and working fine. We have seen all our configrations and and every thing checked looks fine. Can you please suggest is there any other thing which need to take care in HW point of view.
Below is the table for trace lengths we have incorporated in our design and our SI analysis also looks very good. Also Schematic snippet of our design.
| Name | Signal Length (mil) | Remarks |
| | | |
| DSI_CLK_N | 3566.108 | |
| DSI_CLK_P | 3568.456 | |
| DSI_D0_N | 3563.781 | |
| DSI_D0_P | 3564.624 | |
| DSI_D1_N | 3561.638 | |
| DSI_D1_P | 3562.257 | |
| DSI_D2_N | 3563.954 | |
| DSI_D2_P | 3564.383 | |
| DSI_D3_N | 3583.876 | |
| DSI_D3_P | 3583.889 | |
| | | |
| | | |
| Name | Signal Length (mil) | Res MIPI DSI BRIDGE Resistor |
| | | |
| DSI_CLK_R_N | 263.995 | |
| DSI_CLK_R_P | 265.951 | |
| DSI_D2_R_N | 271.587 | |
| DSI_D2_R_P | 270.446 | |
| DSI_D1_R_N | 260.855 | |
| DSI_D0_R_N | 258.267 | |
| DSI_D1_R_P | 268.853 | |
| DSI_D3_R_N | 269.574 | |
| DSI_D0_R_P | 260.524 | |
| DSI_D3_R_P | 258.306 | |
| | | |
| | | |
| Name | Signal Length (mil) | MIPI DSI BRIDGE to ESD |
| | | |
| DSI_RX0_N | 225.1 | |
| DSI_RX0_P | 225.885 | |
| DSI_RX1_N | 204.917 | |
| DSI_RX1_P | 206.333 | |
| DSI_RX2_N | 190.808 | |
| DSI_RX2_P | 199.356 | |
| DSI_RX3_N | 235.738 | |
| DSI_RX3_P | 240.009 | |
| DSI_RXCLK_N | 206.467 | |
| DSI_RXCLK_P | 209.941 | |
| | | |
| Name | Signal Length (mil) | ESD to connector |
| | | |
| DSI_RXIN0_N | 915.32 | |
| DSI_RXIN0_P | 914.957 | |
| DSI_RXIN1_N | 930.358 | |
| DSI_RXIN1_P | 933.344 | |
| DSI_RXIN2_N | 925.658 | |
| DSI_RXIN2_P | 923.591 | |
| DSI_RXIN3_N | 923.954 | |
| DSI_RXIN3_P | 923.079 | |
| DSI_RXCLKIN_N | 948.173 | |
| DSI_RXCLKIN_P | 944.166 | |
