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@ -7,6 +7,7 @@ |
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// Masks for Cirque Register Access Protocol (RAP) |
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#define WRITE_MASK 0x80 |
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#define READ_MASK 0xA0 |
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#define FILLER_BYTE 0xFC |
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extern bool touchpad_init; |
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@ -16,11 +17,11 @@ void RAP_ReadBytes(uint8_t address, uint8_t* data, uint8_t count) { |
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uint8_t cmdByte = READ_MASK | address; // Form the READ command byte |
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if (touchpad_init) { |
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if (spi_start(CIRQUE_PINNACLE_SPI_CS_PIN, CIRQUE_PINNACLE_SPI_LSBFIRST, CIRQUE_PINNACLE_SPI_MODE, CIRQUE_PINNACLE_SPI_DIVISOR)) { |
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spi_write(cmdByte); |
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spi_read(); // filler |
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spi_read(); // filler |
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spi_write(cmdByte); // write command byte, receive filler |
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spi_write(FILLER_BYTE); // write & receive filler |
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spi_write(FILLER_BYTE); // write & receive filler |
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for (uint8_t i = 0; i < count; i++) { |
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data[i] = spi_read(); // each sepsequent read gets another register's contents |
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data[i] = spi_write(FILLER_BYTE); // write filler, receive data on the third filler send |
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} |
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} else { |
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#ifdef CONSOLE_ENABLE |
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