MDK-ARM Keil, MDK-ARM Datasheet - Page 61

• Manufacturer Part Number: MDK-ARM
• Description: KIT REALVIEW MCU DEVELOPMENT
• Manufacturer: Keil
• Type: Compiler and IDEr

Specifications of MDK-ARM

• For Use With/related Products: ARM MCUs
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Getting Started: Building Applications with RL-ARM
From this point onwards, the file system API can be used as normal. However,
as we are communicating with an external memory card, which may have some
timing latencies, it may fail the finit() call. To ensure that the file system always
initializes correctly, it is advisable to allow for retries as shown below.
count = 3;
while (finit() != 0)
}
By default, the file system uses the FAT16 file format. It is possible to enable
FAT32 support for SD/MMC-based file systems. A memory card can be
formatted with a FAT32 file system as follows:
fformat ("M:SD_CARD / FAT32");
A full erase of the card can also be performed during a format as follows:
fformat ("M:SD_CARD / WIPE");
If your microcontroller does not have a dedicated MCI peripheral, then it is
possible to configure the file system library to communicate with the memory
card in SPI mode. SPI driver files are provided in the same file system drivers’
directory. You simply need to add the SPI driver in place of the MCI driver, in
order to configure your microcontroller to access the memory card in SPI mode.
Exercise: MMC-Based File System
This project demonstrates configuration of a memory-card-based file system,
using either a dedicated MCI peripheral or SPI interface.
if (!(count--))
}
errorflag = 1;
break;
{
{
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