Hi,

I was wondering if any one has experience using the L6219 with the 8051.

The data sheet for the L6219 is located at http://www.st.com/stonline/...s/1377.pdf

I am currently using the T89C51AC2. I have the hardware setup as per the data sheet.

I was wondering about recommendations on how to micro step my motor efficiently using the uP. Currently I have been able to implement half stepping and it works OK. However I am not too happy at how I implemented it:

for (i = 0 ; i < steps ; i++)
{
Rot_I11 = 1;
//_wait_ms(2);
Rot_PH1 = 1;
_wait_ms(2);
Rot_I11 = 0;
_wait_ms(2);
Rot_PH2 = 0;
//_wait_ms(2);
Rot_I12 = 1;
_wait_ms(2);
Rot_I12 = 0;
_wait_ms(2);
Rot_I11 = 1;
//_wait_ms(2);
Rot_PH1 = 0;
_wait_ms(2);
Rot_I11 = 0;
_wait_ms(2);
Rot_I12 = 1;
//_wait_ms(2);
Rot_PH2 = 1;
_wait_ms(2);
Rot_I12 = 0;
_wait_ms(2);
}

If anyone could please offer suggestions on a better way to control this and how to control it using micro stepping instead of half stepping I would appreciate it.

Thanks,
Roque