diff options
| author | Vegard Storheil Eriksen <zyp@jvnv.net> | 2015-02-28 06:29:07 +0100 |
|---|---|---|
| committer | Vegard Storheil Eriksen <zyp@jvnv.net> | 2015-02-28 06:29:07 +0100 |
| commit | cd8a8277bc31148673f9094cd0c64fd75778d989 (patch) | |
| tree | f0d0c4ac1663499e8ec52b57855e0bd14fbabdd3 | |
| parent | ee44eb71b2d2366fa9928d3c754e4a1acd4a9922 (diff) | |
Lower ADC sample rate.
| -rw-r--r-- | arcin/main.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arcin/main.cpp b/arcin/main.cpp index 549ea35..538b6c1 100644 --- a/arcin/main.cpp +++ b/arcin/main.cpp @@ -210,6 +210,7 @@ class AnalogAxis : public Axis { // Configure continous capture on one channel. adc.CFGR = (1 << 13) | (1 << 12) | (1 << 5); // CONT, OVRMOD, ALIGN adc.SQR1 = (ch << 6); + adc.SMPR1 = (7 << (ch * 3)); // 72 MHz / 64 / 614 = apx. 1.8 kHz // Enable ADC. adc.CR |= 1 << 0; // ADEN @@ -231,8 +232,8 @@ AnalogAxis axis_ana2(ADC2, 4); int main() { rcc_init(); - // Set ADC12PRES to /1. - RCC.CFGR2 |= (0x10 << 4); + // Set ADC12PRES to /64. + RCC.CFGR2 |= (0x19 << 4); // Initialize system timer. STK.LOAD = 72000000 / 8 / 1000; // 1000 Hz. |