LPCXpresso IDEのトピックRe: LPC1769 i2s sample rate

LPC1769 i2s sample rate

lpcware — Thu, 16 Jun 2016 01:48:32 GMT

Content originally posted in LPCWare by furkan.yuksel on Tue Jul 19 01:55:04 MST 2011
Hi,

I'M using LPC1769 and I'm trying to set i2s bus. user manual says that LPC i2s bus can use sampling frequency between 16 to 96 kHz, however I want to use 11.025 kHz. Does anyone know whether 11.025 ksps works for LPC17xx i2s or not?

Best Regards,

Furkan

Re: LPC1769 i2s sample rate

lpcware — Thu, 16 Jun 2016 01:48:34 GMT

Content originally posted in LPCWare by NXP_Europe on Wed Jul 20 12:01:19 MST 2011
Hello furkan.yuksel,

should be possible ... use e.g. the proper value in the 'I2STXBITRATE'.
The mentioned i2s-Clk-values are coming out of the 'audio-world'. Slower values do have their impact on the quality of sound. But I suppose you use it for an other application.

(...)

Re: LPC1769 i2s sample rate

lpcware — Thu, 16 Jun 2016 01:48:34 GMT

Content originally posted in LPCWare by furkan.yuksel on Thu Jul 21 05:42:19 MST 2011
hi,

First of all, thanks for the reply, actually I'll use it for audio but I'll transmit only voice signal so I think 11.025 kHz will be enough for me. The codec IC which I'm using can be configured to work at 11.025 kHz so I think it should work :)

Best Regards,

Furkan