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ESP32 AudioOutputULP fixes #579

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ESP32 AudioOutputULP fixes #579

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b4e135d
Fix ULP on ESP32
FedericoBusero Oct 16, 2022
550ab78
AudioOutputULP: Fix DAC2 stereo in case of DAC1+DAC2
FedericoBusero Oct 16, 2022
9bfee38
Merge branch 'earlephilhower:master' into FedericoBusero-patch-ULP
FedericoBusero Apr 25, 2023
d3e18fd
ULP - no ESP32S2 / S3
FedericoBusero Apr 25, 2023
a0baa36
Merge branch 'master' into FedericoBusero-patch-ULP
earlephilhower Oct 8, 2024
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8 changes: 6 additions & 2 deletions src/AudioOutputULP.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,12 @@
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/

#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3
#ifdef ESP32

#include "AudioOutputULP.h"

#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3

#include <esp32/ulp.h>
#include <driver/rtc_io.h>
#include <driver/dac.h>
Expand Down Expand Up @@ -166,7 +169,7 @@ bool AudioOutputULP::begin()
{
RTC_SLOW_MEM[dacTableStart1 + i * 2] = create_I_WR_REG(RTC_IO_PAD_DAC1_REG,19,26,i); //dac1: 0x1D4C0121 | (i << 10)
RTC_SLOW_MEM[dacTableStart1 + 1 + i * 2] = create_I_BXI(retAddress1); // 0x80000000 + retAddress1 * 4
RTC_SLOW_MEM[dacTableStart2 + i * 2] = create_I_WR_REG(RTC_IO_PAD_DAC1_REG,19,26,i); //dac2: 0x1D4C0122 | (i << 10)
RTC_SLOW_MEM[dacTableStart2 + i * 2] = create_I_WR_REG(RTC_IO_PAD_DAC2_REG,19,26,i); //dac2: 0x1D4C0122 | (i << 10)
RTC_SLOW_MEM[dacTableStart2 + 1 + i * 2] = create_I_BXI(retAddress2); // 0x80000000 + retAddress2 * 4
}
break;
Expand Down Expand Up @@ -260,3 +263,4 @@ bool AudioOutputULP::stop()
}

#endif
#endif