nemunaire/waveshareteam-e-Paper
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Use static initialization for clear image

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This commit is contained in:
Jochen Keil 2021-05-05 12:29:57 +02:00
commit ea676de2c1
1 changed files with 21 additions and 7 deletions
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28
RaspberryPi_JetsonNano/c/lib/e-Paper/EPD_2in13_V2.c
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@ -88,6 +88,26 @@ const unsigned char EPD_2IN13_V2_lut_partial_update[]= { //20 bytes
0x15,0x41,0xA8,0x32,0x30,0x0A,
};
// EPD_2IN13_V2_WIDTH = 122
// EPD_2IN13_V2_HEIGHT = 250
// (122 + 1) * 250 = 30750
#define VAL_20(X) X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X
#define VAL_50(X) VAL_20(X), VAL_20(X), X, X, X, X, X, X, X, X, X, X
#define VAL_100(X) VAL_20(X), VAL_20(X), VAL_20(X), VAL_20(X), VAL_20(X)
#define VAL_200(X) VAL_100(X), VAL_100(X)
#define VAL_500(X) VAL_100(X), VAL_100(X), VAL_100(X), VAL_100(X), VAL_100(X)
#define VAL_2500(X) VAL_500(X), VAL_500(X), VAL_500(X), VAL_500(X), VAL_500(X)
#define VAL_5000(X) VAL_2500(X), VAL_2500(X)
#define VAL_12500(X) VAL_2500(X), VAL_2500(X), VAL_2500(X), VAL_2500(X), VAL_2500(X)
#define VAL_25000(X) VAL_12500(X), VAL_12500(X)
#define EPD_2IN13_V2_CLEAR_VAR 0xFF
const uint8_t EPD_2IN13_V2_clear_image[] = {
VAL_25000(EPD_2IN13_V2_CLEAR_VAR), VAL_5000(EPD_2IN13_V2_CLEAR_VAR),
VAL_500(EPD_2IN13_V2_CLEAR_VAR), VAL_200(EPD_2IN13_V2_CLEAR_VAR),
VAL_50(EPD_2IN13_V2_CLEAR_VAR)
};
/******************************************************************************
function : Software reset
parameter:
@ -289,15 +309,9 @@ void EPD_2IN13_V2_Clear(void)
UWORD Width, Height;
Width = (EPD_2IN13_V2_WIDTH % 8 == 0)? (EPD_2IN13_V2_WIDTH / 8 ): (EPD_2IN13_V2_WIDTH / 8 + 1);
Height = EPD_2IN13_V2_HEIGHT;
uint32_t len = Height * Width;
uint8_t data[len];
for (UWORD n = 0; n < len; n++) {
data[n] = 0xFF;
}
EPD_2IN13_V2_SendCommand(0x24);
EPD_2IN13_V2_SendData_nByte(&data[0], len);
EPD_2IN13_V2_SendData_nByte((uint8_t*)&EPD_2IN13_V2_clear_image[0], Width * Height);
EPD_2IN13_V2_TurnOnDisplay();
}