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| author | Fabien Poussin <fabien.poussin@gmail.com> | 2019-10-29 13:46:56 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-10-29 13:46:56 +0100 |
| commit | 63bc192217dace785a3606fb8a762e723ec3aa4c (patch) | |
| tree | 01234e4ede5acf666f310e98d424832fdb61d680 /testhal/STM32/STM32L0xx/COMP/main.c | |
| parent | 1c59f6aff73462d7c72cb27ed5bf3a33f8ea3eaf (diff) | |
| parent | 9b38f5482d2efe3de4b0561332dc79f9d35f8319 (diff) | |
| download | ChibiOS-Contrib-63bc192217dace785a3606fb8a762e723ec3aa4c.tar.gz ChibiOS-Contrib-63bc192217dace785a3606fb8a762e723ec3aa4c.tar.bz2 ChibiOS-Contrib-63bc192217dace785a3606fb8a762e723ec3aa4c.zip | |
Merge pull request #204 from ChibiOS/comp-l0
Comp driver update for F0 and L0
Diffstat (limited to 'testhal/STM32/STM32L0xx/COMP/main.c')
| -rw-r--r-- | testhal/STM32/STM32L0xx/COMP/main.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/testhal/STM32/STM32L0xx/COMP/main.c b/testhal/STM32/STM32L0xx/COMP/main.c new file mode 100644 index 0000000..a9d88b4 --- /dev/null +++ b/testhal/STM32/STM32L0xx/COMP/main.c @@ -0,0 +1,73 @@ +/*
+ ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+#include "ch.h"
+#include "hal.h"
+
+
+void comp2_cb(COMPDriver *comp) {
+
+ /* Check if output is high (rising) */
+ if (comp->reg->CSR & COMP_CSR_COMPxOUTVALUE) {
+
+ palToggleLine(LINE_LED_RED);
+ }
+
+}
+
+static const COMPConfig comp2_conf = {
+ COMP_OUTPUT_NORMAL,
+ COMP_IRQ_RISING,
+ comp2_cb,
+ STM32_COMP_InvertingInput_VREFINT // CSR
+};
+
+/*
+ * Application entry point.
+ */
+int main(void) {
+
+ halInit();
+ chSysInit();
+
+ /*
+ * Set PA3 to Analog (COMP2_INP)
+ * Callback will trigger when voltage rises above VREFINT
+ */
+ palSetPadMode(GPIOA, 3, PAL_MODE_INPUT_ANALOG);
+
+ /*
+ * Set PA2 to alternate 8 (COMP2_OUT)
+ * You can connect this to an oscilloscope along with PA4 to compare input/output.
+ */
+ palSetPadMode(GPIOA, 2, PAL_MODE_ALTERNATE(8));
+
+ /*
+ * Start peripherals
+ */
+ compStart(&COMPD2, &comp2_conf);
+ compEnable(&COMPD2);
+
+ /*
+ * Normal main() thread activity.
+ */
+ while (true) {
+
+ chThdSleepMilliseconds(500);
+ palToggleLine(LINE_LED_GREEN);
+ }
+ return 0;
+}
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