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Fix PDITarget_ReceiveByte() not discarding the start bit properly, and reading in the bits inverted and in the wrong order.

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Dean Camera 2009-12-10 00:54:08 +00:00
parent 1e3513ed70
commit 7aecda6fda
1 changed files with 6 additions and 4 deletions
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8
Projects/AVRISP/Lib/PDITarget.c
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@ -99,13 +99,15 @@ uint8_t PDITarget_ReceiveByte(void)
while (PDIDATA_LINE_PIN & PDIDATA_LINE_MASK); while (PDIDATA_LINE_PIN & PDIDATA_LINE_MASK);
TOGGLE_PDI_CLOCK; TOGGLE_PDI_CLOCK;
TOGGLE_PDI_CLOCK;
// Eight Data Bits // Eight Data Bits
for (uint8_t i = 0; i < 8; i++) for (uint8_t i = 0; i < 8; i++)
{ {
if (PDIDATA_LINE_PIN & PDIDATA_LINE_MASK) if (!(PDIDATA_LINE_PIN & PDIDATA_LINE_MASK))
ReceivedByte |= 0x01; ReceivedByte |= 0x80;
ReceivedByte <<= 1; ReceivedByte >>= 1;
TOGGLE_PDI_CLOCK; TOGGLE_PDI_CLOCK;
} }