Actually it should be:
Pins.GPIO_PIN_D0
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There have been 29 items by orange (Search limited from 30-June 24)
#20859 SPI (with ADXL345)
Posted by
on 22 November 2011 - 03:52 PM
in
General Discussion
Correct. It compiles fine.
#20858 SPI (with ADXL345)
Posted by
on 22 November 2011 - 03:46 PM
in
General Discussion
Thanks for looking into this. Below was a typo.
NO, the original wiring is correct and it matches all documents (two above) and what you say below.
NO, the original wiring is correct and it matches all documents (two above) and what you say below.
When reading http://www.sparkfun....ter/ADXL345.pdf page 8 Figure 4. 4, I see:
/CS (pin 7 on the ADXL345, which must to a random GPIO for Netduino indeed)
SDI (also known as SDA/SDIO, pin 13 on the ADXL345, which must go to netduino MOSI; Netduino pin D11)
SDO (also known as ALT ADDRESS, pin 12 on the ADXL345, which must go to netduino MISO; Netduino pin D12)
SCLK (also known as SCL, pin 14 on the ADXL345, which must go to netduino SPCK; Netduino pin D13)
So you switched pins 11 and 12.
#20854 SPI (with ADXL345)
Posted by
on 22 November 2011 - 03:05 PM
in
General Discussion
Thanks for the reply. Both seem to be acting the same. Both compile and both are available in auto complete. Both randomly fail Device ID between each compile.
I changed it to suggested
but the same issues exist.
It's safer to use your suggestion due to my original reference to Wiki page: http://wiki.netduino...figuration.ashx and http://wiki.netduino...SPI.ashx?HL=spi
I changed it to suggested
Pins.GPIO_Pin0since it matches documentation to be on safe side.
but the same issues exist.
It's safer to use your suggestion due to my original reference to Wiki page: http://wiki.netduino...figuration.ashx and http://wiki.netduino...SPI.ashx?HL=spi
Orange, to solve one problem, just change:
Cpu.Pin.GPIO_Pin0To:
Pins.GPIO_Pin0Basically, the Pins enumeration is a Netduino remapping of the abstract Cpu.Pin set exposed by the Micro Frameowrk.
I know, it's confusing...
Cheers
#20853 SPI (with ADXL345)
Posted by
on 22 November 2011 - 02:59 PM
in
General Discussion
Hi,
Connections are similar in Netduino and Arduino (as demonstrated in above article).
To be more specific:
ND 13 SCL, ND 12 SDA, ND 11 SD0, ND Digital 0 (GPIO 0, also tried 1,2 and 10 and matched the SPI.config) to CS, ND 3V3 to VS, ND 3V3 to VIO, ND Gnd to Gnd
It's probably not an issue with physical connections. It randomly changes on multiple compiles and also hack of connecting CS to VCC then Gnd works for passing the initial Device ID check. Not helpful for X/Y/Z reads.
Connections are similar in Netduino and Arduino (as demonstrated in above article).
To be more specific:
ND 13 SCL, ND 12 SDA, ND 11 SD0, ND Digital 0 (GPIO 0, also tried 1,2 and 10 and matched the SPI.config) to CS, ND 3V3 to VS, ND 3V3 to VIO, ND Gnd to Gnd
It's probably not an issue with physical connections. It randomly changes on multiple compiles and also hack of connecting CS to VCC then Gnd works for passing the initial Device ID check. Not helpful for X/Y/Z reads.
Hi Orange,
When using SPI mode, can you tell us how you've got it connected? To which pins on the netduino?
