PixArt / Mbed OS 9125_referenceCode

Reference firmware for PixArt's PAT9125EL sensor and evaluation board. "Hello World" and "Library" contain the exact same files. Please import just one of the two into your mBed compiler as a new program and not as a library.

Welcome to the code repository for PixArt's PAT9125EL sensor and evaluation board.

For general information about this product, please visit this product's components page here:
https://os.mbed.com/components/PAT9125EL-Evaluation-Board/

For guides and tips on how to setup and evaluate the PAT9125EL sensor with the Nordic nRF52-DK microcontroller using this reference code, please visit this guide:
https://os.mbed.com/teams/PixArt/code/9125_referenceCode/wiki/Guide-for-nRF52-DK-Platform

For guides and tips on how to setup and evaluate the PAT9125EL sensor with any microcontroller using this reference code, please visit this guide:
https://os.mbed.com/teams/PixArt/code/9125_referenceCode/wiki/Guide-for-Any-Platform

Files at this revision

API Documentation at this revision

Revision 4:8f7d8ff001f8, committed 2018-07-23

Comitter:
PixArtVY
Date:
Mon Jul 23 22:14:06 2018 +0000
Parent:
3:979019410df2
Child:
5:577976dae20d
Commit message:
Fixed some SPI timing.

Changed in this revision

commHeaders/SPIcommFunctions.h Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/commHeaders/SPIcommFunctions.h	Wed Jul 18 18:33:38 2018 +0000
+++ b/commHeaders/SPIcommFunctions.h	Mon Jul 23 22:14:06 2018 +0000
@@ -47,7 +47,6 @@
     cs = 0;                                 //Set chip select low/active
     addr = addr & 0x7F;                     //Set MSB to 0 to indicate read operation
     spi.write(addr);                        //Write the given address
-    wait_us(1);                             //Add a tiny delay after sending address for some internal cycle timing.
     uint8_t data_read = spi.write(0x00);    //Throw dummy byte after sending address to receieve data
     cs = 1;                                 //Set chip select back to high/inactive
     return data_read;                       //Returns 8-bit data from register

--- a/main.cpp	Wed Jul 18 18:33:38 2018 +0000
+++ b/main.cpp	Mon Jul 23 22:14:06 2018 +0000
@@ -13,11 +13,15 @@
 //=======================
 //Revision History
 //=======================
+Version 1.2 -- 23 July 2018
+-Changed SPI frequency to 2MHz.
+-Changed SPI timing for the readRegister function.
+
 Version 1.1 -- 18 July 2018
-Added apache license notice.
+-Added apache license notice.
 
 Version 1.0 -- 16 Feb. 2018
-First release.
+-First release.
 */
 
 #include "mbed.h"
@@ -32,7 +36,7 @@
 
     #ifdef SPImode
     spi.format(8,3);                    // Set SPI to 8 bits with inverted polarity and phase-shifted to second edge.
-    spi.frequency(1000000);             // Set frequency for SPI communication.
+    spi.frequency(2000000);             // Set frequency for SPI communication.
     cs = 1;                             // Initialize chip select as inactive.
     #endif