Friday, August 10, 2007

Status update and new 24L01 data sheet released

I promise that I haven't fallen off the face of the Earth. I haven't been able to work on tutorials for the last month or so because I started work right in crunch time of a product cycle. Blah. I am still around to help if you guys email me, though (and a few of you have). I'm going to try to finish up that ARC4 tutorial. I also sampled some Wolfson WM8737 ADC chips so I can try to chase after my DIY wireless guitar transmitter. If I can get something going, I'll let you guys check it out.

In 24L01 news, Nordic has now (after over a year of secrecy) revealed that there are hidden features on the 24L01. I kinda knew that there was a reason that they still had a draft spec out, but now they have released a new one which can be found here. They have released functionality for dynamic payload length, selective acknowledge, and payload on auto-ack. These are some great features that would have been even better had they have been released from the get-go. I suppose now I get to write a new version of Tutorial 0 and the include library...

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At August 28, 2007 at 10:51 PM , Anonymous Anonymous said...

There are 3 hidden features:
PTX: nRF24L01 automatically builds packets with payload length (1-32 bytes) according to how many bytes are loaded from MCU.
PRX: nRF24L01 automatically detects payload lengths and informs MCU for each received packet.

At August 28, 2007 at 10:52 PM , Anonymous Anonymous said...

When using enhanced ShockBurst PTX MCU can specify whether it wants acknowledge or not on each packet sent.

At August 28, 2007 at 10:52 PM , Anonymous Anonymous said...

When using enhanced ShockBurst the MCU in PRX can load data destined for any of the up to 6 PTX units (the 6 MultiCeiver pipes) ‘connected’.
Once the PTX sends data to the PRX, the payload is automatically included in the acknowledge sent back to PTX.


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