Following the code snippet is to initialize the four pads/pins as UART5 pins, I am just wondering if there are something wrong? such as the initializing sequence for each pin, and values for the relative registers? Those that I am not quite sure are the Select Input Registers setting. Such as in lines 5 & 11, 17 & 23. I mean why the same value is used to set Select Input Register? Could please someone have a comment on this?
Thanks,
Yang
1. // Config uart5.UART5_CTS_B to pad KEY_ROW4
2. (int *)020e_0268 = 4;
3. // ENABLED, 100K_OHM_PU, PULL, ENABLED, DISABLED, 100MHZ, 40_OHM, SLOW
4. (int *)020e_0650 = 0x0001B0B0;
5. (int *)020e_0918 = 2;
6.
7. // Config uart5.UART5_RTS_B to pad KEY_COL4
8. (int *)020e_0254 = 4;
9. // ENABLED, 100K_OHM_PU, PULL, ENABLED, DISABLED, 100MHZ, 40_OHM, SLOW
10. (int *)020e_063c = 0x000130B0;
11. (int *)020e_0918 = 2;
12.
13. // Config uart5.UART5_RX_DATA to pad KEY_ROW1
14. (int *)020e_025c = 4;
15. // ENABLED, 100K_OHM_PU, PULL, ENABLED, DISABLED, 100MHZ, 40_OHM, SLOW
16. (int *)020e_0644 = 0x0001B0B0;
17. (int *)020e_091c = 3; // KEY_ROW1_ALT4
18.
19. // Config uart5.UART5_TX_DATA to pad KEY_COL1
20. (int *)020e_0248 = 4;
21. // ENABLED, 100K_OHM_PU, PULL, ENABLED, DISABLED, 100MHZ, 40_OHM, SLOW
22. (int *)020e_0630 = 0x0001B0B0;
23. (int *)020e_091c = 3; // KEY_ROW1_ALT4
