FreeCalypso > hg > fc-tourmaline
view src/cs/drivers/drv_app/r2d/lcds/PC_CSAMPLE/R2D_pc_csample_lcd_i.h @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | 4e78acac3d88 |
children |
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/******************************* LCD DESCRIPTION *******************************/ // Size of the LCD in pixels #define R2D_WIDTH 84 #define R2D_HEIGHT 48 // Dithering ON/OFF #define R2D_DITHERING R2D_ON // Kind of display #define R2D_LCD_DISPLAY R2D_MONOCHROME // Refresh mode of LCD #define R2D_REFRESH R2D_VERTICAL // ln2 of the number of bits to code a pixel value // (color depth) #define R2D_PIXEL_DEPTH 1 // ln2 of previous value #define R2D_PIXEL_POS_TO_BIT_POS 0 // ln2 of the number of pixels in one memory word // (Number of pixels MUST BE A POWER OF TWO // for optimization reasons since to compute the address of a pixel // in memory one would like to avoid division and would prefer // to use shifts) // 2^0 = 1 pixel #define R2D_PIXELS_PER_MEMORY_WORD 5