VSDSP Forum

Thank you Pasi!

All the best,

Ed

Hi, I'm using the VS1000's SCISTF_REGU_POWERLOW flag to detect a low battery condition. When asserted, our device flashes the LEDs that illuminate it during normal operation and then shuts down. This works really well but the voltage threshold is a bit too low. According to the VS1000 manual, the fl...

Thank you Pasi,

I'll adjust VS1000 behaviour based on the bypass capacitors.

Best regards,

Ed

Hello Pasi, Thank you for the detailed reply, it's much appreciated. This application works a 4 ohm speaker pretty hard on a limited power source and even though I'm trying everything to keep electrical spikes out, the VS1000 supply is still a bit noisy. An occasional reset would be acceptable but a...

Hello, Wondering what the recommended value is for the capacitor to ground on the VS1000's XRESET line when using the suggested 100K pull-up resistor? I've seen example schematics with a 0.1 uF capacitor or no capacitor at all. One VS1000 datasheet recommends a 10uF capacitor but without either a cu...

Hi, Turns out I was updating the IO supply voltage register but then setting the USB voltage. Corrected code that's working is below: #ifdef USE_POWERBUTTON if (PERIP(SCI_STATUS) & SCISTF_REGU_POWERBUT) { volumeReg = 0xC0C0;; SetVolume(); voltages[voltIoPlayer] = 0; /*1.7V*/ PowerSetVoltages(&am...

Hello, I've designed a custom board using the VS1000D for a consumer product under development. It's working well except at power off there's a large transient on the audio outputs and it causes a large current spike from the audio power amplifier, triggering our lithium battery overcurrent protecti...

Hi Pasi,

Many thanks!

All the best,

Ed

Hello Pasi, Success! I had been working with the GPIO controlled, 4 button player version of the Audio Module, "VS1000AudioModuleButVolStopPower-20140624" downloaded from the VLSI website, but found "#define DISABLE_SD" doesn't exist in that version. So I tried the parent version...

Hello Pasi, Here's a couple of other bits of information that might be helpful - In addition to a couple of other source code examples, I've also tried the VSIDE, VS1000 solution template, "VS1000 SPIUSB". Compiling that, and uploading the resulting image file with VSIDE's Prommer/Flasher ...