Revision as of 16:30, 17 June 2014

Unit Testing

Introduction

Variscite VAR-DVK-AM33 LCD signals are 16 by default. To change board to support 24bit LCD remove resistor net RN109 and install RN108. The pinmux is also configured by default to 16bit. Use the below pinmux example to change from 16bit to 24bit configuration.

Pin-muxing

               lcd_pins_default: lcd_pins_default {
                        pinctrl-single,pins = <
                                0xa0 0x00       /* lcd_data0.lcd_data0, OUTPUT | MODE0 */
                                0xa4 0x00       /* lcd_data1.lcd_data1, OUTPUT | MODE0 */
                                0xa8 0x00       /* lcd_data2.lcd_data2, OUTPUT | MODE0 */
                                0xac 0x00       /* lcd_data3.lcd_data3, OUTPUT | MODE0 */
                                0xb0 0x00       /* lcd_data4.lcd_data4, OUTPUT | MODE0 */
                                0xb4 0x00       /* lcd_data5.lcd_data5, OUTPUT | MODE0 */
                                0xb8 0x00       /* lcd_data6.lcd_data6, OUTPUT | MODE0 */
                                0xbc 0x00       /* lcd_data7.lcd_data7, OUTPUT | MODE0 */
                                0xc0 0x00       /* lcd_data8.lcd_data8, OUTPUT | MODE0 */
                                0xc4 0x00       /* lcd_data9.lcd_data9, OUTPUT | MODE0 */
                                0xc8 0x00       /* lcd_data10.lcd_data10, OUTPUT | MODE0 */
                                0xcc 0x00       /* lcd_data11.lcd_data11, OUTPUT | MODE0 */
                                0xd0 0x00       /* lcd_data12.lcd_data12, OUTPUT | MODE0 */
                                0xd4 0x00       /* lcd_data13.lcd_data13, OUTPUT | MODE0 */
                                0xd8 0x00       /* lcd_data14.lcd_data14, OUTPUT | MODE0 */
                                0xdc 0x00       /* lcd_data15.lcd_data15, OUTPUT | MODE0 */
                                0xe0 0x00       /* lcd_vsync.lcd_vsync, OUTPUT | MODE0 */
                                0xe4 0x00       /* lcd_hsync.lcd_hsync, OUTPUT | MODE0 */
                                0xe8 0x00       /* lcd_pclk.lcd_pclk, OUTPUT | MODE0 */
                                0xec 0x00       /* lcd_ac_bias_en.lcd_ac_bias_en, OUTPUT | MODE0 */
                        >;
                };

@@ Line 3: / Line 3: @@
 __toc__
-= CPU info =
+= Introduction =
-<pre>
+Variscite VAR-DVK-AM33 LCD signals are 16 by default.
-root@am335x-evm:~# cat /proc/cpuinfo
+To change board to support 24bit LCD remove resistor net RN109 and install RN108.
-Processor       : ARMv7 Processor rev 2 (v7l)
+The pinmux is also configured by default to 16bit.
-BogoMIPS        : 598.35
+Use the below pinmux example to change from 16bit to 24bit configuration.
-Features        : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls
-CPU implementer : 0x41
-CPU architecture: 7
-CPU variant     : 0x3
-CPU part        : 0xc08
-CPU revision    : 2
-Hardware        : VAR-SOM-AM33
-Revision        : 0000
-Serial          : 0000000000000000
-root@am335x-evm:~# cat /proc/version
-Linux version 3.2.0-AM335XPSP_04.06.00.11.VAR_R13 (uri@pluto) (gcc version 4.7.3 20130226
-(prerelease) (crosstool-NG linaro-1.13.1-4.7-2013.03-20130313 - Linaro GCC 2013.03) ) #1 T
-ue Oct 15 10:06:14 IST 2013
-</pre>
-= RTC<br>  =
-To set the RTC first set the date from Linux shell, type:<br>
-<pre>$ date 2013.08.27-15:43
-</pre>
-Then set the real time clock from Linux shell, type:<br>
-<pre>$ hwclock --systohc
-</pre>
-Power down your board wait 15 seconds and power up. Check your system with date and the time should be up to date.<br>
-= Audio record/play  =
-<pre>
-$ aplay /usr/share/sounds/alsa/Front_Center.wav
-$ arecord -f cd -d 10 -D hw:0,0 test.wav
-$ aplay test.wav
-</pre>
-= WLAN  =
-List SSIDs, from Linux shell type:
-<pre>$&nbsp;ifconfig wlan0 up
-$&nbsp;iwlist wlan0 scan
-</pre>
-Connecting to an encrypted network<br>
-Find your network from the above scan command.<br>
+= Pin-muxing =
-<pre>$ wpa_passphrase &lt;YourAP&gt; &lt;YourPassword&gt; &gt;wpa.conf
-$ ps | grep wpa_supplicant
-*kill the wpa_supplicant process if exist.
-$ wpa_supplicant -Dwext -iwlan0 -c./wpa.conf -B
-$ udhcpc -iwlan0
-$ ifconfig
-</pre>
-= OpenGL demo (supported CPUs) =
-Run the demo script at Linux command prompt after the VAR-DVK-AM33 EVB boots up
 <pre>
-/etc/init.d/335x-demo
+               lcd_pins_default: lcd_pins_default {
+                        pinctrl-single,pins = <
+xa0 0x00       /* lcd_data0.lcd_data0, OUTPUT | MODE0 */
+xa4 0x00       /* lcd_data1.lcd_data1, OUTPUT | MODE0 */
+xa8 0x00       /* lcd_data2.lcd_data2, OUTPUT | MODE0 */
+xac 0x00       /* lcd_data3.lcd_data3, OUTPUT | MODE0 */
+xb0 0x00       /* lcd_data4.lcd_data4, OUTPUT | MODE0 */
+xb4 0x00       /* lcd_data5.lcd_data5, OUTPUT | MODE0 */
+xb8 0x00       /* lcd_data6.lcd_data6, OUTPUT | MODE0 */
+xbc 0x00       /* lcd_data7.lcd_data7, OUTPUT | MODE0 */
+xc0 0x00       /* lcd_data8.lcd_data8, OUTPUT | MODE0 */
+xc4 0x00       /* lcd_data9.lcd_data9, OUTPUT | MODE0 */
+xc8 0x00       /* lcd_data10.lcd_data10, OUTPUT | MODE0 */
+xcc 0x00       /* lcd_data11.lcd_data11, OUTPUT | MODE0 */
+xd0 0x00       /* lcd_data12.lcd_data12, OUTPUT | MODE0 */
+xd4 0x00       /* lcd_data13.lcd_data13, OUTPUT | MODE0 */
+xd8 0x00       /* lcd_data14.lcd_data14, OUTPUT | MODE0 */
+xdc 0x00       /* lcd_data15.lcd_data15, OUTPUT | MODE0 */
+xe0 0x00       /* lcd_vsync.lcd_vsync, OUTPUT | MODE0 */
+xe4 0x00       /* lcd_hsync.lcd_hsync, OUTPUT | MODE0 */
+xe8 0x00       /* lcd_pclk.lcd_pclk, OUTPUT | MODE0 */
+xec 0x00       /* lcd_ac_bias_en.lcd_ac_bias_en, OUTPUT | MODE0 */
+                        >;
+                };
 </pre>
-= ADC controller =
-please follow TI wiki pages:
-http://processors.wiki.ti.com/index.php/AM335x_ADC_Driver%27s_Guide

VAR-SOM-AM33 Linux Unit Testing: Difference between revisions

Revision as of 16:30, 17 June 2014

Contents

Introduction

Pin-muxing