ALPAKA/driver-w25qxxx
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Fixed the binary search

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This commit is contained in:
dario 2024-05-25 14:23:46 +02:00
parent aea0b1c262
commit 0de96367af
1 changed files with 29 additions and 11 deletions
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40
src/w25qxx.cpp
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@ -81,22 +81,26 @@ namespace sta
while (left < right) while (left < right)
{ {
middle = (left + right) / 2; middle = (left + right) / 2;
STA_DEBUG_PRINTF("left=%d, middle=%d, right=%d", left, middle, right);
readData(middle * bytes, buffer, bytes); readData(middle * bytes, buffer, bytes);
STA_DEBUG_PRINTF("Left %d Middle %d Right %d\n", left, middle, right);
if (criterion(buffer)) if (criterion(buffer))
{ {
left = middle+1; left = middle + 1;
} }
else else
{ {
right = middle-1; right = middle - 1;
} }
} }
middle = (left + right) / 2;
readData(middle * bytes, buffer, bytes); readData(middle * bytes, buffer, bytes);
if (!criterion(buffer)) if (criterion(buffer))
middle -= 1; {
middle += 1;
}
delete[] buffer; delete[] buffer;
@ -189,13 +193,27 @@ namespace sta
} }
else else
{ {
uint8_t addrBuffer[3] = { if (fast)
(uint8_t) (address >> 16), {
(uint8_t) (address >> 8), uint8_t addrBuffer[4] = {
(uint8_t) (address) (uint8_t) (address >> 16),
}; (uint8_t) (address >> 8),
(uint8_t) (address),
0x00 // Dummy byte for fast mode
};
return busRead(instruction, buffer, length, addrBuffer, 3); return busRead(instruction, buffer, length, addrBuffer, 4);
}
else
{
uint8_t addrBuffer[3] = {
(uint8_t) (address >> 16),
(uint8_t) (address >> 8),
(uint8_t) (address)
};
return busRead(instruction, buffer, length, addrBuffer, 3);
}
} }
} }