i.MX ProcessorsのトピックRe: Configuration ESAI for GPIO

Configuration ESAI for GPIO

luongnguyen — Thu, 11 Sep 2014 07:20:56 GMT

now i'm working with I.MX6, With Enhanced Serial Audio Interface (ESAI), could you help me configure ESAI for GPIO by terminal or code,

Thank you so much,

Re: Configuration ESAI for GPIO

igorpadykov — Thu, 11 Sep 2014 09:38:38 GMT

Hi Luong

probably you can use memtool, for usage one can look at

p.39 http://www.freescale.com/files/32bit/doc/app_note/AN4576.pdf

and change IOMUX registers for ESAI pads, check:

Chapter 4 External Signals and Pin Multiplexing

Chapter 28 General Purpose Input/Output (GPIO)

Chapter 36 IOMUX Controller (IOMUXC)

IMX6DQRM i.MX 6Dual/6Quad Applications Processor Reference Manual

Best regards

igor

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Re: Configuration ESAI for GPIO

luongnguyen — Fri, 12 Sep 2014 01:53:45 GMT

Hello Igorpadykov,

Thank you very much, your reply is really helpful for me,

i'm a new guide for ARM A9 and linux, last night, i spent more time to read for understand the document of GPIO and IOMUX, but i don't know the Memtool, could you help a Memtool for I.MX6Q, and my OS is debian,

Thanks and regards,

Luong Nguyen,

P/s: Thank you again for the time,

Re: Configuration ESAI for GPIO

igorpadykov — Fri, 12 Sep 2014 02:05:30 GMT

Hi Luong

you can find it in Demo images or after building Linux sources

L3.0.35_4.1.0_DEMO_IMAGE_BSP : i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Linux Binary Demo Files.

L3.0.35_4.1.0_ER_SOURCE_BSP : i.MX 6Quad, i.MX 6Dual, i.MX 6DualLite, i.MX 6Solo and i.MX 6Sololite Linux BSP Source Code Files.

http://svn.slimdevices.com/repos/jive/7.8/trunk/squeezeos/src/jivetest/memtool.c

Best regards

igor

Re: Configuration ESAI for GPIO

luongnguyen — Sat, 13 Sep 2014 04:11:28 GMT

Dear Igorpadykov,

i use iomux_tool_v3.4.0.3 for creat library and code for change mode of GPIO1_IO2 and GPIO1_IO09, i choose device is I.M6DQ,

the function gpio1_iomux_config():

HW_IOMUXC_SW_MUX_CTL_PAD_GPIO02_WR(

BF_IOMUXC_SW_MUX_CTL_PAD_GPIO02_SION_V(DISABLED) |

BF_IOMUXC_SW_MUX_CTL_PAD_GPIO02_MUX_MODE_V(ALT5));

HW_IOMUXC_SW_PAD_CTL_PAD_GPIO02_WR(

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_HYS_V(ENABLED) |

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_PUS_V(100K_OHM_PU) |

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_PUE_V(PULL) |

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_PKE_V(ENABLED) |

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_ODE_V(DISABLED) |

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_SPEED_V(100MHZ) |

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_DSE_V(40_OHM) |

BF_IOMUXC_SW_PAD_CTL_PAD_GPIO02_SRE_V(SLOW));

all of my test project in a link http://www.mediafire.com/download/4912tz975u06s10/GPIO29.rar, i use eclipse,

but when i runt it, the notification is: Segmentation fault

could you help me?

Thanks and regard,

Luong Nguyen,

Re: Configuration ESAI for GPIO

igorpadykov — Sun, 14 Sep 2014 14:44:56 GMT

Hi Luong

for bare metal tests please try SDK

i.MX 6Series Platform SDK : Bare-metal SDK for the i.MX 6 series

~igor