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AP_CANManager: Integrate methods for converting hexadecimal characters to numbers

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muramura 2023-10-09 14:15:44 +09:00 committed by Peter Barker
parent 62a106bd4c
commit e4ca54b2e4
1 changed files with 1 additions and 18 deletions
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19
libraries/AP_CANManager/AP_SLCANIface.cpp
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@ -82,24 +82,7 @@ static uint8_t nibble2hex(uint8_t x)
static uint8_t hex2nibble(char c)
{
// Must go into RAM, not flash, because flash is slow
static uint8_t NumConversionTable[] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
};
static uint8_t AlphaConversionTable[] = {
10, 11, 12, 13, 14, 15
};
uint8_t out = 255;
if (c >= '0' && c <= '9') {
out = NumConversionTable[int(c) - int('0')];
} else if (c >= 'a' && c <= 'f') {
out = AlphaConversionTable[int(c) - int('a')];
} else if (c >= 'A' && c <= 'F') {
out = AlphaConversionTable[int(c) - int('A')];
}
uint8_t out = char_to_hex(c);
if (out == 255) {
hex2nibble_error = true;