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fix opamps

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This commit is contained in:
Pavol Rusnak 2011-04-27 04:54:38 +02:00
parent 1e44b4c0ec
commit 5df11a171a
2 changed files with 43 additions and 47 deletions
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21
firmware/src/edubrm.c
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@ -61,26 +61,15 @@ void SetOutReport (uint8_t dst[], uint32_t length)
gain = dst[3];
if (which == 1) {
LPC_GPIO3->MASKED_ACCESS[1<<3] &= ((0<<3) | ~(1<<3)); // set chipselect to 0
} else {
LPC_GPIO3->MASKED_ACCESS[1<<2] &= ((0<<2) | ~(1<<2)); // set chipselect to 0
}
// set channel
SSPSend2(0x41, chan); // 000 - ch#1, 101 - ch#6
if (which == 1) {
SSPSend2(0x40, gain); // gain: 000 - 1, 111 - 32
LPC_GPIO3->MASKED_ACCESS[1<<3] |= (1<<3); // set chipselect to 1
} else {
LPC_GPIO3->MASKED_ACCESS[1<<2] &= ((0<<2) | ~(1<<2)); // set chipselect to 0
SSPSend2(0x41, chan); // chan: 000 - ch#1, 101 - ch#6
LPC_GPIO3->MASKED_ACCESS[1<<2] |= (1<<2); // set chipselect to 1
}
if (which == 1) {
LPC_GPIO3->MASKED_ACCESS[1<<3] &= ((0<<3) | ~(1<<3)); // set chipselect to 0
} else {
for (which = 0; which < 75; which++) {}
LPC_GPIO3->MASKED_ACCESS[1<<2] &= ((0<<2) | ~(1<<2)); // set chipselect to 0
}
// set gain
SSPSend2(0x40, gain); // 000 - 1, 111 - 32
if (which == 1) {
LPC_GPIO3->MASKED_ACCESS[1<<3] |= (1<<3); // set chipselect to 1
} else {
SSPSend2(0x40, gain); // gain: 000 - 1, 111 - 32
LPC_GPIO3->MASKED_ACCESS[1<<2] |= (1<<2); // set chipselect to 1
}
break;