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< div class = "title" > DMAMUX: Direct Memory Access Multiplexer Driver< / div > < / div >
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< a name = "details" id = "details" > < / a > < h2 class = "groupheader" > Overview< / h2 >
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< p > The MCUXpresso SDK provides a peripheral driver for the Direct Memory Access Multiplexer (DMAMUX) of MCUXpresso SDK devices.< / p >
< h1 > < a class = "anchor" id = "DMAMUXTypicalUseCase" > < / a >
Typical use case< / h1 >
< h2 > < a class = "anchor" id = "DMAMUXOper" > < / a >
DMAMUX Operation< / h2 >
< p > Refer to the driver examples codes located at < SDK_ROOT> /boards/< BOARD> /driver_examples/dmamux < / p >
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< table class = "memberdecls" >
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< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "member-group" > < / a >
Driver version< / h2 > < / td > < / tr >
< tr class = "memitem:ga52b927e4f978ddf42faf0acf6de3df57" > < td class = "memItemLeft" align = "right" valign = "top" > #define  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#ga52b927e4f978ddf42faf0acf6de3df57" > FSL_DMAMUX_DRIVER_VERSION< / a >       (< a class = "el" href = "a00272.html#ga812138aa3315b0c6953c1a26130bcc37" > MAKE_VERSION< / a > (2, 1, 0))< / td > < / tr >
< tr class = "memdesc:ga52b927e4f978ddf42faf0acf6de3df57" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > DMAMUX driver version 2.1.0. < a href = "#ga52b927e4f978ddf42faf0acf6de3df57" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ga52b927e4f978ddf42faf0acf6de3df57" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table > < table class = "memberdecls" >
< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "member-group" > < / a >
DMAMUX Initialization and de-initialization< / h2 > < / td > < / tr >
< tr class = "memitem:ga850545ac61a004df8ca312db2ca9db73" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#ga850545ac61a004df8ca312db2ca9db73" > DMAMUX_Init< / a > (DMAMUX_Type *base)< / td > < / tr >
< tr class = "memdesc:ga850545ac61a004df8ca312db2ca9db73" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Initializes the DMAMUX peripheral. < a href = "#ga850545ac61a004df8ca312db2ca9db73" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ga850545ac61a004df8ca312db2ca9db73" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:gab663257d094b9b7b6fa1b894fbf8000b" > < td class = "memItemLeft" align = "right" valign = "top" > void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#gab663257d094b9b7b6fa1b894fbf8000b" > DMAMUX_Deinit< / a > (DMAMUX_Type *base)< / td > < / tr >
< tr class = "memdesc:gab663257d094b9b7b6fa1b894fbf8000b" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Deinitializes the DMAMUX peripheral. < a href = "#gab663257d094b9b7b6fa1b894fbf8000b" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:gab663257d094b9b7b6fa1b894fbf8000b" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< / table > < table class = "memberdecls" >
< tr class = "heading" > < td colspan = "2" > < h2 class = "groupheader" > < a name = "member-group" > < / a >
DMAMUX Channel Operation< / h2 > < / td > < / tr >
< tr class = "memitem:gaecac68802d961c31a06389caa97387f5" > < td class = "memItemLeft" align = "right" valign = "top" > static void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#gaecac68802d961c31a06389caa97387f5" > DMAMUX_EnableChannel< / a > (DMAMUX_Type *base, uint32_t channel)< / td > < / tr >
< tr class = "memdesc:gaecac68802d961c31a06389caa97387f5" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Enables the DMAMUX channel. < a href = "#gaecac68802d961c31a06389caa97387f5" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:gaecac68802d961c31a06389caa97387f5" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ga4d68cf7796e4a6a9cd0c4289712ca120" > < td class = "memItemLeft" align = "right" valign = "top" > static void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#ga4d68cf7796e4a6a9cd0c4289712ca120" > DMAMUX_DisableChannel< / a > (DMAMUX_Type *base, uint32_t channel)< / td > < / tr >
< tr class = "memdesc:ga4d68cf7796e4a6a9cd0c4289712ca120" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Disables the DMAMUX channel. < a href = "#ga4d68cf7796e4a6a9cd0c4289712ca120" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ga4d68cf7796e4a6a9cd0c4289712ca120" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:gab4cfa329d636dc52dffb7fedef84367e" > < td class = "memItemLeft" align = "right" valign = "top" > static void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#gab4cfa329d636dc52dffb7fedef84367e" > DMAMUX_SetSource< / a > (DMAMUX_Type *base, uint32_t channel, int32_t source)< / td > < / tr >
< tr class = "memdesc:gab4cfa329d636dc52dffb7fedef84367e" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Configures the DMAMUX channel source. < a href = "#gab4cfa329d636dc52dffb7fedef84367e" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:gab4cfa329d636dc52dffb7fedef84367e" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ga9b873510e45bcc998b5cede12ed359d0" > < td class = "memItemLeft" align = "right" valign = "top" > static void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#ga9b873510e45bcc998b5cede12ed359d0" > DMAMUX_EnablePeriodTrigger< / a > (DMAMUX_Type *base, uint32_t channel)< / td > < / tr >
< tr class = "memdesc:ga9b873510e45bcc998b5cede12ed359d0" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Enables the DMAMUX period trigger. < a href = "#ga9b873510e45bcc998b5cede12ed359d0" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ga9b873510e45bcc998b5cede12ed359d0" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ga7a632ca1a6bd05a936a4f4ba1295e158" > < td class = "memItemLeft" align = "right" valign = "top" > static void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#ga7a632ca1a6bd05a936a4f4ba1295e158" > DMAMUX_DisablePeriodTrigger< / a > (DMAMUX_Type *base, uint32_t channel)< / td > < / tr >
< tr class = "memdesc:ga7a632ca1a6bd05a936a4f4ba1295e158" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Disables the DMAMUX period trigger. < a href = "#ga7a632ca1a6bd05a936a4f4ba1295e158" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ga7a632ca1a6bd05a936a4f4ba1295e158" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
< tr class = "memitem:ga70912895b0619dcfb911663501cb03f5" > < td class = "memItemLeft" align = "right" valign = "top" > static void  < / td > < td class = "memItemRight" valign = "bottom" > < a class = "el" href = "a00275.html#ga70912895b0619dcfb911663501cb03f5" > DMAMUX_EnableAlwaysOn< / a > (DMAMUX_Type *base, uint32_t channel, bool enable)< / td > < / tr >
< tr class = "memdesc:ga70912895b0619dcfb911663501cb03f5" > < td class = "mdescLeft" >   < / td > < td class = "mdescRight" > Enables the DMA channel to be always ON. < a href = "#ga70912895b0619dcfb911663501cb03f5" > More...< / a > < br / > < / td > < / tr >
< tr class = "separator:ga70912895b0619dcfb911663501cb03f5" > < td class = "memSeparator" colspan = "2" >   < / td > < / tr >
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< / table >
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< h2 class = "groupheader" > Macro Definition Documentation< / h2 >
< a class = "anchor" id = "ga52b927e4f978ddf42faf0acf6de3df57" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > #define FSL_DMAMUX_DRIVER_VERSION      (< a class = "el" href = "a00272.html#ga812138aa3315b0c6953c1a26130bcc37" > MAKE_VERSION< / a > (2, 1, 0))< / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< / div >
< / div >
< h2 class = "groupheader" > Function Documentation< / h2 >
< a class = "anchor" id = "ga850545ac61a004df8ca312db2ca9db73" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void DMAMUX_Init < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > This function ungates the DMAMUX clock.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
< a class = "anchor" id = "gab663257d094b9b7b6fa1b894fbf8000b" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "memname" >
< tr >
< td class = "memname" > void DMAMUX_Deinit < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > < / td > < td > )< / td >
< td > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > This function gates the DMAMUX clock.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
< a class = "anchor" id = "gaecac68802d961c31a06389caa97387f5" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
< tr >
< td class = "memname" > static void DMAMUX_EnableChannel < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > uint32_t  < / td >
< td class = "paramname" > < em > channel< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > inline< / span > < span class = "mlabel" > static< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > This function enables the DMAMUX channel.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< tr > < td class = "paramname" > channel< / td > < td > DMAMUX channel number. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
< a class = "anchor" id = "ga4d68cf7796e4a6a9cd0c4289712ca120" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
< tr >
< td class = "memname" > static void DMAMUX_DisableChannel < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > uint32_t  < / td >
< td class = "paramname" > < em > channel< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > inline< / span > < span class = "mlabel" > static< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > This function disables the DMAMUX channel.< / p >
< dl class = "section note" > < dt > Note< / dt > < dd > The user must disable the DMAMUX channel before configuring it. < / dd > < / dl >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< tr > < td class = "paramname" > channel< / td > < td > DMAMUX channel number. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
< a class = "anchor" id = "gab4cfa329d636dc52dffb7fedef84367e" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
< tr >
< td class = "memname" > static void DMAMUX_SetSource < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > uint32_t  < / td >
< td class = "paramname" > < em > channel< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > int32_t  < / td >
< td class = "paramname" > < em > source< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > inline< / span > < span class = "mlabel" > static< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< tr > < td class = "paramname" > channel< / td > < td > DMAMUX channel number. < / td > < / tr >
< tr > < td class = "paramname" > source< / td > < td > Channel source, which is used to trigger the DMA transfer.User need to use the dma_request_source_t type as the input parameter. < / td > < / tr >
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< a class = "anchor" id = "ga9b873510e45bcc998b5cede12ed359d0" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
< tr >
< td class = "memname" > static void DMAMUX_EnablePeriodTrigger < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > uint32_t  < / td >
< td class = "paramname" > < em > channel< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > inline< / span > < span class = "mlabel" > static< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > This function enables the DMAMUX period trigger feature.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< tr > < td class = "paramname" > channel< / td > < td > DMAMUX channel number. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
< a class = "anchor" id = "ga7a632ca1a6bd05a936a4f4ba1295e158" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
< tr >
< td class = "memname" > static void DMAMUX_DisablePeriodTrigger < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > uint32_t  < / td >
< td class = "paramname" > < em > channel< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > inline< / span > < span class = "mlabel" > static< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > This function disables the DMAMUX period trigger.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< tr > < td class = "paramname" > channel< / td > < td > DMAMUX channel number. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
< a class = "anchor" id = "ga70912895b0619dcfb911663501cb03f5" > < / a >
< div class = "memitem" >
< div class = "memproto" >
< table class = "mlabels" >
< tr >
< td class = "mlabels-left" >
< table class = "memname" >
< tr >
< td class = "memname" > static void DMAMUX_EnableAlwaysOn < / td >
< td > (< / td >
< td class = "paramtype" > DMAMUX_Type *  < / td >
< td class = "paramname" > < em > base< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > uint32_t  < / td >
< td class = "paramname" > < em > channel< / em > , < / td >
< / tr >
< tr >
< td class = "paramkey" > < / td >
< td > < / td >
< td class = "paramtype" > bool  < / td >
< td class = "paramname" > < em > enable< / em >   < / td >
< / tr >
< tr >
< td > < / td >
< td > )< / td >
< td > < / td > < td > < / td >
< / tr >
< / table >
< / td >
< td class = "mlabels-right" >
< span class = "mlabels" > < span class = "mlabel" > inline< / span > < span class = "mlabel" > static< / span > < / span > < / td >
< / tr >
< / table >
< / div > < div class = "memdoc" >
< p > This function enables the DMAMUX channel always ON feature.< / p >
< dl class = "params" > < dt > Parameters< / dt > < dd >
< table class = "params" >
< tr > < td class = "paramname" > base< / td > < td > DMAMUX peripheral base address. < / td > < / tr >
< tr > < td class = "paramname" > channel< / td > < td > DMAMUX channel number. < / td > < / tr >
< tr > < td class = "paramname" > enable< / td > < td > Switcher of the always ON feature. "true" means enabled, "false" means disabled. < / td > < / tr >
< / table >
< / dd >
< / dl >
< / div >
< / div >
2023-01-26 01:35:56 +00:00
< / div > <!-- contents -->
2022-04-08 14:46:35 +00:00
< / div > <!-- doc - content -->
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