msp430f5529 and anaren AIR boosterpack on different spi port

[ilpaso 0]

Hi,

 

I'd like to connect the anaren AIR boosterpack to the launchpad msp430f5529 but not on the standard SPI port.

 

what should I change in the code in order to use a different port?

For example: 

4_0 CS

4_1 MOSI

4_2 MISO

4_3 SCK

 

thank you

 

[nickn 5]

You can use just about any set of pins you want to use if you are willing to bit-bang (looking right now to see if there is a software spi library to do it for you.) I don't have an MSP430F5529 board myself but I looked it up and found this on GitHub:

 

https://github.com/energia/Energia/issues/298

 

Looks like they are working on it.

[abecedarian 330]

Nothing in the code will let you use different pins since the booster pack is hard wired to use certain pins.

You are limited to using those pins unless you choose to cut traces and re-route signals elsewhere.

[nickn 5]

I should have been a bit more clear (don't know if the response was directed at the op or me.) I was referring to spi in general about what pins can be used on the micrcontroller's side; you usually can't change what pins a slave device uses.  

[spirilis 1,265]

Most MSP430's use a hardware peripheral called USCI (Universal Serial Communications Interface) to offload SPI interfacing a bit. There are 2 flavors of USCI - USCI_A (SPI & RS232-style UART) and USCI_B (SPI & I2C). You should study the chip's datasheet to determine which pins are mapped to what available USCI instances. There can be multiple of each flavor, e.g. USCI_A0 vs USCI_A1, or USCI_B0 vs USCI_B1. Fwiw, the CS pin doesn't matter since from the master side it's just a GPIO that gets toggled by your library or application.

 

Sent from my Galaxy Note II with Tapatalk 4

[ilpaso 0]

Thank you for the answers.

I'll re-route the the pins.

The problem is understand what change in the code in order to use a different SPI port.

For example: 

4_0 CS

4_1 MOSI

4_2 MISO

4_3 SCK

Please see the msp pinout: http://energia.nu/img/LaunchPadMSP430F5529.jpg

 

I'll try the code discussed here: https://github.com/energia/Energia/issues/298 (thank you @nickn)

 

Thank you.

[CorB 64]

Nothing in the code will let you use different pins since the booster pack is hard wired to use certain pins.

You are limited to using those pins unless you choose to cut traces and re-route signals elsewhere.

You could also simply wire the whole boosterpack to the launchpad, then you have the freedom to connect. It only needs SPI, an interrupt PIN and plus/minus I think.

 

cheers

CorB