Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

DMA Issue ,please help me,PLEASE

I have a program about DMA , The functions is send data from RS232 to SDRAM, SDRAM can receive data ,but when i check this data whther rightly, find the data that it's not send from uart . the probl...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hi!

In my project I use the CPU/f and I have a istruction and data cache. My program works only I use uncached memory:

alt_u8 *buffer; // buffer of chars -> unsigned 8 bit

buffer = alt_uncached_malloc(BUFF_SIZE * sizeof (alt_u8));

Regards