So, the last three weeks have been very programming oriented. I finally got the LED of the uC blinking one week ago and this week I have been trying to establish SPI communication between the MSP430 uC and the ADS1292 Analog front end.
I first tried following the SW package I used for an 8051 based uC in my masters thesis, but that naturally didnt work out so well, since the uC architectures are completely different. Today we approached to problem in a divided way together with Gerardo. We have now put aside the old code and we checked the SPI initialization routine from the MSP430 family guide (chapter 35 USCIBx SPI master mode).
So basically we just toggled one bit (UCWRST) of the UCBxCTL1 register, this resets the SPI communication and leaves the reset pin into low position to enable communication. This sounds farely simple task, but took a while to assure from the datasheets and uC libraries that we use correct registers. We quickly checked the function from the debugger interface register value (Code Composer Studio v5) and it seems to reset correctly and then settle to low. So now we should be able to communicate with the ADS 1292...