Stephen Dickey / C027-REVB

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Dependents:   C027_BootTest_revb C027_EthernetSniffTest C027_M3_SerialEcho C027_HelloWorld_revb ... more

Fork of C027 by u-blox

Files at this revision

API Documentation at this revision

Revision 22:2ab87e985526, committed 2013-12-15

Comitter:
dixter1
Date:
Sun Dec 15 21:17:22 2013 +0000
Parent:
21:db7c445289f5
Commit message:
Comment Updates

Changed in this revision

C027.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/C027.cpp	Fri Dec 13 23:32:11 2013 +0000
+++ b/C027.cpp	Sun Dec 15 21:17:22 2013 +0000
@@ -57,6 +57,11 @@
     wait_ms(3000);      
 }
 
+
+// this is a test function designed to turn on all hardware that
+//   might leak current into the LISA chip, while disabling the 
+//   LISA chip itself.  This is intended to be as harsh as possible,
+//   and is most relevant to REV B hardware.
 void C027::LeakageTest( void )
 {
     mdmEn = 0;      //disable
@@ -73,9 +78,9 @@
         mdmUsbDet = ( use_mdmuart? 0:1 ); // USBDET: 0=enable uart, 1=USB Only
         wait_ms(10); 
         mdmEn     = 1;  // LDOEN:  0=off -> 1=on
-        wait_ms(50);    //         RST line will come up as soon as 
+        wait_ms(50);    //         
         mdmPwrOn  = 0;  // PWRON:  0=turn on -> 1=idle
-        wait_ms(300);   //         power on sequence is triggered by keeping reset 50ms-300ms low
+        wait_ms(300);   //         power on is triggered by asserting PwrOn
         mdmPwrOn  = 1;  // PWRON:  0=turn on -> 1=idle
         mdmIsEnabled = true;
         wait_ms(1000);