test DAC

2019-05-06 14:58:27 +08:00
parent db9d36046a
commit c9872a6ce9
1 changed files with 3 additions and 0 deletions
@@ -273,6 +273,9 @@ static void DAC_outputV(uint16_t DACin) {
        spi_DACtxbuf[i] = 0;
    }

+    spi_DACtxbuf[0] = DACin;
+    spi_DACtxbuf[1] = (DACin << 8) & 0xFF00;
+
    PIN_setOutputValue(pin_handle, DAC_CS, 0);  // DAC_CS LOW
    ZM_spi_transaction(SPI_DAC_SIZE, spi_DACtxbuf, spi_rxbuf);
    PIN_setOutputValue(pin_handle, DAC_CS, 1);  // DAC_CS HIGH