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The implementation uses the LPUARTx devices. Up to 8 UARTs can be used,
given that the pins are accessible. E.g. 8 on Teensy 4.1, 5 on
MIMXRT1020_EVK.
For Tennsy 4.0 and 4.1 the UART numbers are as printed on the pinout 1..N.
The MIMXRT10xx-EVK boards have only one UART named, which gets the number
1. All other UART are assigned to different Pins:
MIMXRT1010-EVK:
D0/D1 UART 1
D6/D7 UART 2
A0/D4 UART 3
MIMXRT1020-EVK:
D0/D1 UART 1
D6/D9 UART 2
D10/D12 UART 3
D14/D15 UART 4
A0/A1 UART 5
MIMXRT1050-EVK, MIMXRT1060-EVK, MIMXRT1064-EVK:
D0/D1 UART 1
D7/D6 UART 2
D8/D9 UART 3
A1/A0 UART 4
525 B
525 B
| 1 | D0 | GPIO_09 |
|---|---|---|
| 2 | D1 | GPIO_10 |
| 3 | D2 | GPIO_AD_05 |
| 4 | D3 | GPIO_AD_06 |
| 5 | D4 | GPIO_08 |
| 6 | D5 | GPIO_01 |
| 7 | D6 | GPIO_AD_01 |
| 8 | D7 | GPIO_AD_02 |
| 9 | D8 | GPIO_SD_02 |
| 10 | D9 | GPIO_03 |
| 11 | D10 | GPIO_AD_05 |
| 12 | D11 | GPIO_AD_04 |
| 13 | D12 | GPIO_AD_03 |
| 14 | D13 | GPIO_AD_06 |
| 15 | D14 | GPIO_01 |
| 16 | D15 | GPIO_02 |
| 17 | CUR_A | GPIO_AD_01 |
| 18 | CUR_B | GPIO_AD_02 |
| 19 | CUR_C | GPIO_AD_07 |
| 20 | VOLT_DCB | GPIO_AD_09 |
| 21 | CUR_DCB | GPIO_AD_10 |
| 22 | A0 | GPIO_AD_07 |
| 23 | A1 | GPIO_AD_09 |
| 24 | A2 | GPIO_AD_10 |
| 25 | A3 | GPIO_AD_14 |
| 26 | A4 | GPIO_AD_01 |
| 27 | A5 | GPIO_AD_02 |
| 28 | PWM_AT | GPIO_02 |
| 29 | PWM_AB | GPIO_01 |
| 30 | PWM_BT | GPIO_04 |
| 31 | PWM_BB | GPIO_03 |
| 32 | PWM_CT | GPIO_06 |
| 33 | PWM_CB | GPIO_05 |
| 34 | ENC_A | GPIO_AD_05 |
| 35 | ENC_B | GPIO_AD_06 |
| 36 | LED_GREEN | GPIO_11 |