Changes between Version 35 and Version 36 of gsc


Ignore:
Timestamp:
06/06/2019 04:57:15 PM (6 months ago)
Author:
Bobby Jones
Comment:

Add v54 release information. Updated battery read time for Newport.

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  • gsc

    v35 v36  
    245245The battery voltage rail (vdd_bat) is only able to be measured when the GSC is actually powered off of the battery.
    246246
    247 In some cases you can use the GSC to disable primary board power (referred to as 'GSC Sleep') for a few seconds in order to refresh the vdd_bat reading. In other cases some boards have a GSC_Backup regulator which powers the GSC from Vin even when the GSC has disabled the board's primary power to preserve the GSC battery life and those boards require the board's input power to be fully removed in order to read the GSC battery voltage.
     247In some cases you can use the GSC to disable primary board power (referred to as 'GSC Sleep') for a number of seconds in order to refresh the vdd_bat reading. Ventana only requires an off time of 3 seconds in order to read the battery. Newport however requires 35 seconds as it's lower power consumption is not guaranteed to consume the VCC capacitance until that time. In other cases some boards have a GSC_Backup regulator which powers the GSC from Vin even when the GSC has disabled the board's primary power to preserve the GSC battery life and those boards require the board's input power to be fully removed in order to read the GSC battery voltage.
    248248
    249249Boards with a GSC Backup regulator which require board power to be fully removed to re-fresh the GSC battery voltage reading are:
     
    12831283The following represents the revision history for externally released GSC firmware revisions:
    12841284- GSCv3 (Newport):
     1285 * v54: 20190605
     1286  - improve pushbutton timings
     1287  - fix i2c block writes
     1288  - add i2c consecutive byte reads
     1289  - improve battery read accuracy (now requires 35s after board power off)
     1290  - improve battery life
     1291  - add memory protection
     1292  - add non volatile backup of boot device default
     1293  - fix fan spinning at negative temperatures
     1294  - improved minimum voltage of replacement battery
    12851295 * v53: 20181107
    12861296  - fix pushbutton soft power down