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How to set up UART2 in J990

1,079 bytes added, 17:56, 25 January 2012

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Log with root user via SSH or Serial cable.<br>

Go to /sys/kernel/debug/omap_mux/

'''Disable Bluethoot:'''

root@localhost:/sys/class/gpio#

</pre>

'''Disable Bluethoot UART2 wires:'''Go to /sys/kernel/debug/omap_mux/Type:<pre>echo 0x007 > &gt; uart2_ctsecho 0x007 > &gt; uart2_rtsecho 0x007 > &gt; uart2_rxecho 0x007 &gt; uart2_tx </pre> Check that:<pre>root@localhost:/sys/kernel/debug/omap_mux# cat uart2_cts name: uart2_cts.safe_mode (0x48002174/0x144 = 0x0007), b ab26, t NAmode: OMAP_PIN_OUTPUT | OMAP_MUX_MODE7signals: uart2_cts | mcbsp3_dx | gpt9_pwm_evt | NA | gpio_144 | NA | NA | safe_moderoot@localhost:/sys/kernel/debug/omap_mux# cat uart2_rts name: uart2_rts.safe_mode (0x48002176/0x146 = 0x0007), b ab25, t NAmode: OMAP_PIN_OUTPUT | OMAP_MUX_MODE7signals: uart2_rts | mcbsp3_dr | gpt10_pwm_evt | NA | gpio_145 | NA | NA | safe_moderoot@localhost:/sys/kernel/debug/omap_mux# cat uart2_rx name: uart2_rx.safe_mode (0x4800217a/0x14a = 0x0007), b ad25, t NAmode: OMAP_PIN_OUTPUT | OMAP_MUX_MODE7signals: uart2_rx | mcbsp3_fsx | gpt8_pwm_evt | NA | gpio_147 | NA | NA | safe_moderoot@localhost:/sys/kernel/debug/omap_mux# cat uart2_txname: uart2_tx.safe_mode (0x48002178/0x148 = 0x0007), b aa25, t NAmode: OMAP_PIN_OUTPUT | OMAP_MUX_MODE7signals: uart2_tx | mcbsp3_clkx | gpt11_pwm_evt | NA | gpio_146 | NA | NA | safe_moderoot@localhost:/sys/kernel/debug/omap_mux# </pre>p

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