Difference between revisions of "Unit QEMUVersatilePB"
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=== Function declarations === | === Function declarations === | ||
Revision as of 02:18, 7 August 2017
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Description
Ultibo QEMU VersatilePB unit
This unit serves to include all units relevant to the QEMU VersatilePB and to register the drivers that are appropriate to the configuration.
This includes standard interfaces such as network, filesystem and storage as well as drivers that are specific to the VersatilePB and may or may not be included by anything else.
The unit also provides a very simple clock device driver for the 24MHz clock included in the Verstile PB System Control registers. This clock is 32bit only, runs at a fixed rate of 24MHz and cannot be stopped or reset.
Additional units can be included anywhere within a program and they will be linked during the compile process. This unit simply provides a convenient way to ensure all relevant units have been included and the standard drivers registered.
Constants
QEMUVersatilePB specific constants
NAME_* VERSATILEPB_CLOCK_DESCRIPTION = 'VersatilePB 24MHz Clock';
|
Description of 24MHz clock device |
Type definitions
None defined
Public variables
None defined
Function declarations
Initialization functions
procedure QEMUVersatilePBInit;
Description: Initialize the QEMUVersatilePB unit and parameters
| Note | Called only during system startup |
|---|
QEMUVersatilePB MMCI functions
function MMCIGetCardDetect(MMC:PMMCDevice):LongWord;
Description: Implementation of MMCDeviceGetCardDetect API for QEMUVPB MMCI
| Note | Not intended to be called directly by applications, use MMCDeviceGetCardDetect instead
Not currently used as the VERSATILEPB_SYS_MCI register is not connected in QEMUVPB |
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function MMCIGetWriteProtect(MMC:PMMCDevice):LongWord;
Description: Implementation of MMCDeviceGetWriteProtect API for QEMUVPB MMCI
| Note | Not intended to be called directly by applications, use MMCDeviceGetWriteProtect instead
Not currently used as the VERSATILEPB_SYS_MCI register is not connected in QEMUVPB |
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QEMUVersatilePB clock functions
function VersatilePBClockRead(Clock:PClockDevice):LongWord;
Description: Implementation of ClockDeviceRead API for the 24MHz Clock
| Note | Not intended to be called directly by applications, use ClockDeviceRead instead |
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function VersatilePBClockRead64(Clock:PClockDevice):Int64;
Description: Implementation of ClockDeviceRead64 API for the 24MHz Clock
| Note | Not intended to be called directly by applications, use ClockDeviceRead64 instead |
|---|
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