djsundog/circuitpython
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Key off len, not buf, to decide if anything to DMA

Browse Source
This commit is contained in:
Jeff Epler 2022-05-06 14:22:07 -05:00
parent 1a9034ff7c
commit f776749ca3
No known key found for this signature in database
GPG Key ID: D5BF15AB975AB4DE
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
ports/raspberrypi/common-hal/rp2pio/StateMachine.c
View File

@ -894,8 +894,8 @@ bool common_hal_rp2pio_statemachine_background_write(rp2pio_statemachine_obj_t *
uint8_t pio_index = pio_get_index(self->pio); uint8_t pio_index = pio_get_index(self->pio);
uint8_t sm = self->state_machine; uint8_t sm = self->state_machine;
int pending_buffers = (once->info.buf != NULL) + (loop->info.buf != NULL); int pending_buffers = (once->info.len != 0) + (loop->info.len != 0);
if (!once->info.buf) { if (!once->info.len) {
once = loop; once = loop;
} }