Print actual status and data on TWI error
The contents of `TWSR` (TWI Status Register) and `TWDR` (TWI Data Register) are printed when an error occured.
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1 changed files with 14 additions and 0 deletions
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@ -336,6 +336,20 @@ static void lcd_splash(void) {
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static void twi_error(void) {
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lcd_fill(0xFF);
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for (uint8_t i = 0; i < 2; i++) {
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lcd_move_cursor(0, i);
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lcd_write_string_page("TW_STATUS:\0", i, true);
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lcd_write_kerning(2, true);
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lcd_write_integer_page(TW_STATUS, 3, i, true);
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}
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for (uint8_t i = 0; i < 2; i++) {
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lcd_move_cursor(0, i + 2);
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lcd_write_string_page("TW_DATA:\0", i, true);
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lcd_write_kerning(16, true);
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lcd_write_integer_page(TWDR, 3, i, true);
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}
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for (;;);
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}
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