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annotate touch.h @ 85:18b154c447bb

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Add note about 1-wire wiring
author Daniel O'Connor <darius@dons.net.au>
date Thu, 12 Mar 2015 23:22:11 +1030
parents 58d76cf522ff
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1 /* Touch controller (TSC2046N) defines */
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2 /* Mode/channel select defines */
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3 #define TP_READ_SEL(chan, mode, ref, pd) (0x80 | (((chan) & 0x07) << 4) | (((mode) & 0x01) << 3) | (((ref) & 0x01) << 2) | ((pd) & 0x03))
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5 /* Channel select */
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6 #define TP_CHAN_TEMP0 0
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7 #define TP_CHAN_Y 1
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8 #define TP_CHAN_VBAT 2
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9 #define TP_CHAN_Z1 3
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10 #define TP_CHAN_Z2 4
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11 #define TP_CHAN_X 5
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12 #define TP_CHAN_AUX 6
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13 #define TP_CHAN_TEMP1 7
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14
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15 /* Mode select */
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16 #define TP_MODE_12 0
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17 #define TP_MODE_8 1
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18
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19 /* Reference type */
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20 #define TP_REF_DIFF 0
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21 #define TP_REF_SER 1
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23 /* Power down mode */
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24 #define TP_PD_AUTO 0
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25 #define TP_PD_REF_OFF 1
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26 #define TP_PD_REF_ON 2
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27 #define TP_PD_ON 3
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29 uint16_t tp_read(uint8_t type);
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30 void tp_getcoords(uint16_t *x, uint16_t *y, uint16_t *z1, uint16_t *z2, float *t, float *t2);
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