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cc2540 mini DK additional accelerometer

Flor
Intellectual 260 points

Other Parts Discussed in Thread: CC2540

Hi, 
I am using CC2540 mini DK v1.1

I have some questions regarding the hardware pin connections and the accelerometer connections.

1. In the schematic of the SoC debug/flash header on the keyfob it says that pin 8 is connected to P0_3/MISO 
and pin10 to P0_2/MOSI. That seems inconsistent to what is stated in page 79/299 of the users guide swru191b.pdf

Which one is the correct one?

2. In keyfob board, test pines, are directly connected to same pins as the accelerometer. I would like to connect a second accelerometer (same part number accelerometer cma3000/d01 that is in the keyfob) and I was planing to use this pins.
I have the accelerometer soldered in a protoboard so I can have access to all the pins and I am connecting them to the test pins P1_3 through P1_5 in the same way the on board accelerometer is done.
In the file cma30000d.c I am changing the chip select from:
CS=P1_2 to CS=P0_6 (one pin of the test header)
and the P0DIR |=x40
keeping the rest of the code the same, I am trying to access the external accelerometer instead of the on board one but I am not able to read from it.

3. I would also like to know if I can connect a second accelerometer and be able to read from both at the same time (the one on board and the external one).
What I am trying to do is keep the accelerometer on board and have access to it through USART0 SPI alt2 location as it is by default and in addition connect an external accelerometer in the debug header pins and have access to this accelerometer through USART1 SPI alt1 location.
That is:
P0_5 (pin 6 debug header) --- MISO accelerometer pin
P0_4 (pin 5 debug header) --- MOSI accelerometer pin
P0_3 (pin 8 debug header) --- CSB  accelerometer pin
P0_2  (pin 10 debug header)--- SS accelerometer pin
P0_6 (pin 1 test header) --- INT accelerometer pin.

Thank you very much for your help