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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3 Comments:

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

There are 3 hidden features:
1) DYNAMIC PAYLOAD LENGTH
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 Charles said...

2) DYNAMIC AUTO ACK
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 Charles said...

3) PAYLOAD in AUTO ACK
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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