thunderdog
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Hi, I am using an ISD17xx sound record/playback chip in SPI mode (using a microcontroller). I am looking for a method for downloading .wav files from my PC computer to the ISD device. I have connected a cable between my sound card and Pin9 (Aud IN) of the sound chip and can successfully download files by playing the file (using Audacity) and simultaneosly pressing the REC button on the board with the ISD17xx device.
I would like to be able to download a large .wav file with embedded EOM markers to the ISD that indicates that each file (between EOM markers) is separate. Does anyone have experience with this ? The ISD1700 data sheets and app notes that I've read mention that EOM markers are placed (i.e. when using SET_RECORD), but don't indicate what the EOM is. My goal is to be able to program multiple copies of the chip, so downloading one file at a time will not work. I've seen a commercial eval board that can program, but they seem to be in the $150+ range.
Any ideas how I can develop a good process to download multiple files (60-90 seconds worth) separated by the EOM markers ?
Thanks.
I would like to be able to download a large .wav file with embedded EOM markers to the ISD that indicates that each file (between EOM markers) is separate. Does anyone have experience with this ? The ISD1700 data sheets and app notes that I've read mention that EOM markers are placed (i.e. when using SET_RECORD), but don't indicate what the EOM is. My goal is to be able to program multiple copies of the chip, so downloading one file at a time will not work. I've seen a commercial eval board that can program, but they seem to be in the $150+ range.
Any ideas how I can develop a good process to download multiple files (60-90 seconds worth) separated by the EOM markers ?
Thanks.