Anyone using Progressive LLC FAT?

ljbeng · Joined: 10 Feb 2004 Posts: 205

I have an 18LF2620 connected to 256 MB SD card all on 3.3v. I can get the FAT file system program to read the directory and create directories. I get errors when trying to create a file or read an existing file or delete a file. I have CCS V3.230. Thanks.

Guest · Guest

I had a similar problem and you might want to look at you spi settings. I used the following three lines of code:

setup_spi(SPI_MASTER|SPI_H_TO_L|SPI_CLK_DIV_4);

*0x94 |= 0x40; // set CKE = 1 - clock idle low
*0x14 &= 0xEF; // set CKP = 0 - data valid on rising edge

The last two lines set the proper spi bus state. I think the default is something like idle low but read on falling edge.

asmallri · Joined: 12 Aug 2004 Posts: 1634 Location: Perth, Australia

Douglas Kennedy · Joined: 07 Sep 2003 Posts: 755 Location: Florida

Is this a little of topic? LLC is commercial software so shouldn't this issue be adressed by LLC and not this forum. My fear is that if we are off the CCS topic too frequently CCS will see this forum as benefitting other commercial ventures and not them. Fixing commercial software from LLC maybe crossing this line.

ljbeng · Joined: 10 Feb 2004 Posts: 205

Guest, That didn't seem to help. It will not even initilize with those lines. It looks like Progressive has a provision in there for the SPI functions as you suggested. Thanks.