UART on sabreauto is not working

anuragbiradar — Wed, 11 Sep 2013 11:34:51 GMT

hi,

I am using imx6q sabreauto board, till yesterday uart was working fine, but now it's not, is there any other option to get uart output???.

Re: UART on sabreauto is not working

Rita_Wang — Mon, 16 Sep 2013 09:35:05 GMT

Hi Anurag,

I advise you to retry it again, if can't, you can modify the settings for UART in serial.h.

Best Regards

Dan

Re: UART on sabreauto is not working

anuragbiradar — Wed, 18 Sep 2013 09:09:52 GMT

Hi Dan,

uart cable is working fine for other board. but only when i plug it to one particular device it's giving some junk value, is there any other way so that i can uart output??

what i need to change serial.h???

Here is code which is there

/* UART 1 configuration */

/*!

* This specifies the threshold at which the CTS pin is deasserted by the

* RXFIFO. Set this value in Decimal to anything from 0 to 32 for

* hardware-driven hardware flow control. Read the HW spec while specifying

* this value. When using interrupt-driven software controlled hardware

* flow control set this option to -1.

#define UART1_UCR4_CTSTL 16

/*!

* Specify the size of the DMA receive buffer. The minimum buffer size is 512

* bytes. The buffer size should be a multiple of 256.

#define UART1_DMA_RXBUFSIZE 1024

/*!

* Specify the MXC UART's Receive Trigger Level. This controls the threshold at

* which a maskable interrupt is generated by the RxFIFO. Set this value in

* Decimal to anything from 0 to 32. Read the HW spec while specifying this

* value.

#define UART1_UFCR_RXTL 16

/*!

* Specify the MXC UART's Transmit Trigger Level. This controls the threshold at

* which a maskable interrupt is generated by the TxFIFO. Set this value in

* Decimal to anything from 0 to 32. Read the HW spec while specifying this

* value.

#define UART1_UFCR_TXTL 16

#define UART1_DMA_ENABLE 0

/* UART 2 configuration */

#define UART2_UCR4_CTSTL -1

#define UART2_DMA_ENABLE 1

#define UART2_DMA_RXBUFSIZE 512

#define UART2_UFCR_RXTL 16

#define UART2_UFCR_TXTL 16

/* UART 3 configuration */

#define UART3_UCR4_CTSTL 16

#define UART3_DMA_ENABLE 0

#define UART3_DMA_RXBUFSIZE 1024

#define UART3_UFCR_RXTL 16

#define UART3_UFCR_TXTL 16

/* UART 4 configuration */

#define UART4_UCR4_CTSTL -1

#define UART4_DMA_ENABLE 0

#define UART4_DMA_RXBUFSIZE 512

#define UART4_UFCR_RXTL 16

#define UART4_UFCR_TXTL 16

/* UART 5 configuration */

#define UART5_UCR4_CTSTL -1

#define UART5_DMA_ENABLE 0

#define UART5_DMA_RXBUFSIZE 512

#define UART5_UFCR_RXTL 16

#define UART5_UFCR_TXTL 16

#endif

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