diff options
| author | Kevin O'Connor <kevin@koconnor.net> | 2020-10-07 11:44:58 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2020-10-29 11:55:06 -0400 |
| commit | 9142200b3ac63dc757e8e4fbfb4b1f8d177457b2 (patch) | |
| tree | a7a2305e0207c3a7a0d3ae6e49a709e37a0bb32c /src | |
| parent | a8069e9ba80346e66285eb03fd6435b4ca61cd01 (diff) | |
| download | kutter-9142200b3ac63dc757e8e4fbfb4b1f8d177457b2.tar.gz kutter-9142200b3ac63dc757e8e4fbfb4b1f8d177457b2.tar.xz kutter-9142200b3ac63dc757e8e4fbfb4b1f8d177457b2.zip | |
stm32: Support reading chip based temperature sensor on stm32f0
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src')
| -rw-r--r-- | src/stm32/stm32f0_adc.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/stm32/stm32f0_adc.c b/src/stm32/stm32f0_adc.c index 3561c08d..aeb32bcb 100644 --- a/src/stm32/stm32f0_adc.c +++ b/src/stm32/stm32f0_adc.c @@ -1,6 +1,6 @@ // ADC functions on STM32 // -// Copyright (C) 2019 Kevin O'Connor <kevin@koconnor.net> +// Copyright (C) 2019-2020 Kevin O'Connor <kevin@koconnor.net> // // This file may be distributed under the terms of the GNU GPLv3 license. @@ -15,11 +15,15 @@ DECL_CONSTANT("ADC_MAX", 4095); +#define ADC_TEMPERATURE_PIN 0xfe +DECL_ENUMERATION("pin", "ADC_TEMPERATURE", ADC_TEMPERATURE_PIN); + static const uint8_t adc_pins[] = { GPIO('A', 0), GPIO('A', 1), GPIO('A', 2), GPIO('A', 3), GPIO('A', 4), GPIO('A', 5), GPIO('A', 6), GPIO('A', 7), GPIO('B', 0), GPIO('B', 1), GPIO('C', 0), GPIO('C', 1), GPIO('C', 2), GPIO('C', 3), GPIO('C', 4), GPIO('C', 5), + ADC_TEMPERATURE_PIN }; struct gpio_adc @@ -68,7 +72,11 @@ gpio_adc_setup(uint32_t pin) } } - gpio_peripheral(pin, GPIO_ANALOG, 0); + if (pin == ADC_TEMPERATURE_PIN) { + ADC1_COMMON->CCR = ADC_CCR_TSEN; + } else { + gpio_peripheral(pin, GPIO_ANALOG, 0); + } return (struct gpio_adc){ .adc = adc, .chan = 1 << chan }; } |