michaelh/zephyr
1
0
Fork 0
Code Releases Activity

boards: mimxrt1020_evk: Enable lpuart2 for bluetooth hci

Browse source 
Enables instance 2 of the lpuart driver and configures pinmuxes to use
bluetooth hci on the mimxrt1020_evk board. Updates board documentation
accordingly.

Tested with samples/bluetooth/peripheral_hr, with frdm_kw41z attached as
an arduino shield running the nxp hci controller application.

Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
This commit is contained in:
Maureen Helm 2019-01-14 15:14:37 -06:00
commit 2ec2ac16d5
4 changed files with 27 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

16
boards/arm/mimxrt1020_evk/pinmux.c
View file

@ -41,6 +41,22 @@ static int mimxrt1020_evk_init(struct device *dev)
IOMUXC_SW_PAD_CTL_PAD_DSE(6));
#endif
#ifdef CONFIG_UART_MCUX_LPUART_2
/* LPUART2 TX/RX */
IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B1_08_LPUART2_TX, 0);
IOMUXC_SetPinMux(IOMUXC_GPIO_AD_B1_09_LPUART2_RX, 0);
IOMUXC_SetPinConfig(IOMUXC_GPIO_AD_B1_08_LPUART2_TX,
IOMUXC_SW_PAD_CTL_PAD_PKE_MASK |
IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |
IOMUXC_SW_PAD_CTL_PAD_DSE(6));
IOMUXC_SetPinConfig(IOMUXC_GPIO_AD_B1_09_LPUART2_RX,
IOMUXC_SW_PAD_CTL_PAD_PKE_MASK |
IOMUXC_SW_PAD_CTL_PAD_SPEED(2) |
IOMUXC_SW_PAD_CTL_PAD_DSE(6));
#endif
return 0;
}