I'm using a PSoC 4 BLE (CY8C4248LQI-BL583), and I'd like to copy the output of a Shift Register (v2.30) to RAM via DMA.
The ShiftRegister does not provide a "tr_out" DMA pulse, and instead only has a level-sensitive interrupt out. The interrupt appears to only be cleared by ShiftReg_GetIntStatus(). As such, it does not seem usable by the DMA, because the DMA event cannot clear the interrupt.
Can a ShiftRegister be hooked up to a DMA component? The ShiftRegister documentation says yes, but I don't see how to throttle the requests without a pulsed interrupt. Is there a ShiftRegister to DMA example out there?