Difference between revisions of "Unit MMC"

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<pre style="border: 0; padding-bottom:0px;">procedure MMCAsyncStart(SDHCI:PSDHCIHost);</pre>
 
<pre style="border: 0; padding-bottom:0px;">procedure MMCAsyncStart(SDHCI:PSDHCIHost);</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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'''MMC functions'''
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<pre style="border: 0; padding-bottom:0px;">function MMCDeviceReadBlocks(MMC:PMMCDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;</pre>
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<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
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<pre style="border: 0; padding-bottom:0px;">function MMCDeviceWriteBlocks(MMC:PMMCDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;</pre>
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<pre style="border: 0; padding-bottom:0px;">function MMCDeviceEraseBlocks(MMC:PMMCDevice; const Start,Count:Int64):LongWord;</pre>
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<pre style="border: 0; padding-bottom:0px;">function MMCDeviceGoIdle(MMC:PMMCDevice):LongWord;</pre>
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<pre style="border: 0; padding-bottom:0px;">function MMCDeviceSetClock(MMC:PMMCDevice; Clock:LongWord):LongWord;</pre>
 
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 
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Revision as of 06:13, 12 October 2016

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Description

This unit implements the standards based part of the SD/MMC specification including the standard SDHCI interfaces.

For each platform a SDHCI module needs to be provided that implements the platform specific parts of the SDHCI interface.

This is similar in model to USB and other interfaces in Ultibo, where the generic interface unit requires a platform specific module to register with it in order to communicate with platform specific devices.

The SD/MMC interfaces are 2 tier (ie Host and Device) whereas the USB interface is 3 tier (Host, Device and Driver).

Constants

To be documented

Type definitions

To be documented

Public variables

To be documented

Function declarations


Initialization functions 

procedure MMCInit;
Description: To be documented
Note None documented 


function MMCStart:LongWord;
Description: To be documented
Note None documented 


function MMCStop:LongWord;
Description: To be documented
Note None documented 


procedure MMCAsyncStart(SDHCI:PSDHCIHost);
Description: To be documented
Note None documented


MMC functions 

function MMCDeviceReadBlocks(MMC:PMMCDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;
Description: To be documented
Note None documented 


function MMCDeviceWriteBlocks(MMC:PMMCDevice; const Start,Count:Int64; Buffer:Pointer):LongWord;
Description: To be documented
Note None documented 


function MMCDeviceEraseBlocks(MMC:PMMCDevice; const Start,Count:Int64):LongWord;
Description: To be documented
Note None documented 


function MMCDeviceGoIdle(MMC:PMMCDevice):LongWord;
Description: To be documented
Note None documented 


function MMCDeviceSetClock(MMC:PMMCDevice; Clock:LongWord):LongWord;
Description: To be documented
Note None documented



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