[Bug] Updated Cirque Pinnacle SPI driver to read data correctly (#17074)
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58c37c0814
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c199514372
1 changed files with 5 additions and 4 deletions
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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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