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minor cleanups

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This commit is contained in:
marshmellow42 2015-10-31 23:12:42 -04:00
commit 9f669cb26f
8 changed files with 80 additions and 67 deletions
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16
armsrc/lfsampling.c
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@ -255,7 +255,7 @@ uint32_t SnoopLF()
**/
void doT55x7Acquisition(size_t sample_size) {
#define T55xx_READ_UPPER_THRESHOLD 128+40 // 50
#define T55xx_READ_UPPER_THRESHOLD 128+40 // 40 grph
#define T55xx_READ_TOL 5
uint8_t *dest = BigBuf_get_addr();
@ -264,8 +264,6 @@ void doT55x7Acquisition(size_t sample_size) {
if ( bufsize > sample_size )
bufsize = sample_size;
//memset(dest, 0, bufsize);
uint16_t i = 0;
bool startFound = false;
bool highFound = false;
@ -282,7 +280,7 @@ void doT55x7Acquisition(size_t sample_size) {
curSample = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
LED_D_OFF();
// find first high sample
// skip until the first high sample above threshold
if (!startFound && curSample > T55xx_READ_UPPER_THRESHOLD) {
if (curSample > firstSample)
firstSample = curSample;
@ -292,15 +290,17 @@ void doT55x7Acquisition(size_t sample_size) {
continue;
}
// skip until samples begin to change
// skip until first high samples begin to change
if (startFound || curSample < firstSample-T55xx_READ_TOL){
if (!startFound)
// if just found start - recover last sample
if (!startFound) {
dest[i++] = firstSample;
startFound = true;
startFound = true;
}
// collect samples
dest[i++] = curSample;
if (i >= bufsize-1) break;
}
}
//skipCnt++;
}
}