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-rw-r--r--ports/stm32f4/common-hal/microcontroller/Processor.c98
-rw-r--r--ports/stm32f4/mphalport.c21
-rw-r--r--ports/stm32f4/mphalport.h28
3 files changed, 75 insertions, 72 deletions
diff --git a/ports/stm32f4/common-hal/microcontroller/Processor.c b/ports/stm32f4/common-hal/microcontroller/Processor.c
index 0f8824ee5..324659cef 100644
--- a/ports/stm32f4/common-hal/microcontroller/Processor.c
+++ b/ports/stm32f4/common-hal/microcontroller/Processor.c
@@ -37,12 +37,26 @@
#define ADC_CAL_ADDRESS (0x1fff7a2a)
#define ADC_CAL1 ((uint16_t*)(ADC_CAL_ADDRESS + 2))
#define ADC_CAL2 ((uint16_t*)(ADC_CAL_ADDRESS + 4))
+#define VREFIN_CAL ((uint16_t *)ADC_CAL_ADDRESS)
// correction factor for reference value
STATIC volatile float adc_refcor = 1.0f;
-#define CORE_TEMP_V25 (943) /* (0.76v/3.3v)*(2^ADC resoultion) */
-#define CORE_TEMP_AVG_SLOPE (3) /* (2.5mv/3.3v)*(2^ADC resoultion) */
+STATIC void set_adc_params(ADC_HandleTypeDef *AdcHandle) {
+ AdcHandle->Instance = ADC1;
+ AdcHandle->Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
+ AdcHandle->Init.Resolution = ADC_RESOLUTION_12B;
+ AdcHandle->Init.ScanConvMode = DISABLE;
+ AdcHandle->Init.ContinuousConvMode = DISABLE;
+ AdcHandle->Init.DiscontinuousConvMode = DISABLE;
+ AdcHandle->Init.NbrOfDiscConversion = 0;
+ AdcHandle->Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
+ AdcHandle->Init.ExternalTrigConv = ADC_SOFTWARE_START;
+ AdcHandle->Init.DataAlign = ADC_DATAALIGN_RIGHT;
+ AdcHandle->Init.NbrOfConversion = 1;
+ AdcHandle->Init.DMAContinuousRequests = DISABLE;
+ AdcHandle->Init.EOCSelection = ADC_EOC_SINGLE_CONV;
+}
float common_hal_mcu_processor_get_temperature(void) {
__HAL_RCC_ADC1_CLK_ENABLE();
@@ -50,20 +64,7 @@ float common_hal_mcu_processor_get_temperature(void) {
//HAL Implementation
ADC_HandleTypeDef AdcHandle;
ADC_ChannelConfTypeDef sConfig;
-
- AdcHandle.Instance = ADC1;
- AdcHandle.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
- AdcHandle.Init.Resolution = ADC_RESOLUTION_12B;
- AdcHandle.Init.ScanConvMode = DISABLE;
- AdcHandle.Init.ContinuousConvMode = DISABLE;
- AdcHandle.Init.DiscontinuousConvMode = DISABLE;
- AdcHandle.Init.NbrOfDiscConversion = 0;
- AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
- AdcHandle.Init.ExternalTrigConv = ADC_SOFTWARE_START;
- AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
- AdcHandle.Init.NbrOfConversion = 1;
- AdcHandle.Init.DMAContinuousRequests = DISABLE;
- AdcHandle.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
+ set_adc_params(&AdcHandle);
HAL_ADC_Init(&AdcHandle);
ADC->CCR |= ADC_CCR_TSVREFE;
@@ -71,7 +72,7 @@ float common_hal_mcu_processor_get_temperature(void) {
sConfig.Channel = ADC_CHANNEL_TEMPSENSOR; //either 16 or 18, depending on chip
sConfig.Rank = 1;
- sConfig.SamplingTime = ADC_SAMPLETIME_480CYCLES; //Taken from micropython
+ sConfig.SamplingTime = ADC_SAMPLETIME_480CYCLES; // Temp sensor likes 10us minimum
HAL_ADC_ConfigChannel(&AdcHandle, &sConfig);
HAL_ADC_Start(&AdcHandle);
@@ -84,50 +85,35 @@ float common_hal_mcu_processor_get_temperature(void) {
//There's no F4 specific appnote for this but it works the same as the L1 in AN3964
float core_temp_avg_slope = (*ADC_CAL2 - *ADC_CAL1) / 80.0;
return (((float)value * adc_refcor - *ADC_CAL1) / core_temp_avg_slope) + 30.0f;
-
- // STATIC uint32_t adc_config_and_read_channel(ADC_HandleTypeDef *adcHandle, uint32_t channel) {
- // adc_config_channel(adcHandle, channel);
- // uint32_t raw_value = adc_read_channel(adcHandle);
-
- // #if defined(STM32F4) || defined(STM32F7)
- // // ST docs say that (at least on STM32F42x and STM32F43x), VBATE must
- // // be disabled when TSVREFE is enabled for TEMPSENSOR and VREFINT
- // // conversions to work. VBATE is enabled by the above call to read
- // // the channel, and here we disable VBATE so a subsequent call for
- // // TEMPSENSOR or VREFINT works correctly.
- // if (channel == ADC_CHANNEL_VBAT) {
- // ADC->CCR &= ~ADC_CCR_VBATE;
- // }
- // #endif
-
- // return raw_value;
-
- // int adc_read_core_temp(ADC_HandleTypeDef *adcHandle) {
- // int32_t raw_value = adc_config_and_read_ref(adcHandle, ADC_CHANNEL_TEMPSENSOR);
- // return ((raw_value - CORE_TEMP_V25) / CORE_TEMP_AVG_SLOPE) + 25;
- // }
-
- // #if MICROPY_PY_BUILTINS_FLOAT
- // // correction factor for reference value
- // STATIC volatile float adc_refcor = 1.0f;
-
- // float adc_read_core_temp_float(ADC_HandleTypeDef *adcHandle) {
- // int32_t raw_value = adc_config_and_read_ref(adcHandle, ADC_CHANNEL_TEMPSENSOR);
- // float core_temp_avg_slope = (*ADC_CAL2 - *ADC_CAL1) / 80.0;
- // return (((float)raw_value * adc_refcor - *ADC_CAL1) / core_temp_avg_slope) + 30.0f;
- // }
}
float common_hal_mcu_processor_get_voltage(void) {
-// float adc_read_core_vref(ADC_HandleTypeDef *adcHandle) {
-// uint32_t raw_value = adc_config_and_read_ref(adcHandle, ADC_CHANNEL_VREFINT);
+ __HAL_RCC_ADC1_CLK_ENABLE();
+
+ //HAL Implementation
+ ADC_HandleTypeDef AdcHandle;
+ ADC_ChannelConfTypeDef sConfig;
+ set_adc_params(&AdcHandle);
+ HAL_ADC_Init(&AdcHandle);
+
+ ADC->CCR |= ADC_CCR_TSVREFE;
+
+ sConfig.Channel = ADC_CHANNEL_VREFINT;
+ sConfig.Rank = 1;
+ sConfig.SamplingTime = ADC_SAMPLETIME_480CYCLES;
+ HAL_ADC_ConfigChannel(&AdcHandle, &sConfig);
+
+ HAL_ADC_Start(&AdcHandle);
+ if (HAL_ADC_PollForConversion(&AdcHandle,1) != HAL_OK) {
+ mp_raise_RuntimeError(translate("Voltage read timed out"));
+ }
+ uint32_t value = (uint32_t)HAL_ADC_GetValue(&AdcHandle);
+ HAL_ADC_Stop(&AdcHandle);
-// // update the reference correction factor
-// adc_refcor = ((float)(*VREFIN_CAL)) / ((float)raw_value);
+ //This value could be used to actively correct ADC values.
+ adc_refcor = ((float)(*VREFIN_CAL)) / ((float)value);
-// return (*VREFIN_CAL) * ADC_SCALE;
-// }
- return NAN;
+ return adc_refcor * 3.3f;
}
uint32_t common_hal_mcu_processor_get_frequency(void) {
diff --git a/ports/stm32f4/mphalport.c b/ports/stm32f4/mphalport.c
index f78e9c750..47ff493e2 100644
--- a/ports/stm32f4/mphalport.c
+++ b/ports/stm32f4/mphalport.c
@@ -31,18 +31,15 @@
#include "py/mpstate.h"
#include "py/gc.h"
+#include "shared-bindings/microcontroller/__init__.h"
#include "supervisor/shared/tick.h"
+#include "stm32f4xx_hal.h"
-/*------------------------------------------------------------------*/
-/* delay
- *------------------------------------------------------------------*/
void mp_hal_delay_ms(mp_uint_t delay) {
uint64_t start_tick = supervisor_ticks_ms64();
uint64_t duration = 0;
while (duration < delay) {
- #ifdef MICROPY_VM_HOOK_LOOP
- MICROPY_VM_HOOK_LOOP
- #endif
+ RUN_BACKGROUND_TASKS;
// Check to see if we've been CTRL-Ced by autoreload or the user.
if(MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_kbd_exception)) ||
MP_STATE_VM(mp_pending_exception) == MP_OBJ_FROM_PTR(&MP_STATE_VM(mp_reload_exception))) {
@@ -52,3 +49,15 @@ void mp_hal_delay_ms(mp_uint_t delay) {
// TODO(tannewt): Go to sleep for a little while while we wait.
}
}
+
+void mp_hal_delay_us(mp_uint_t delay) {
+ common_hal_mcu_delay_us();
+}
+
+void mp_hal_disable_all_interrupts(void) {
+ common_hal_mcu_disable_interrupts();
+}
+
+void mp_hal_enable_all_interrupts(void) {
+ common_hal_mcu_enable_interrupts();
+}
diff --git a/ports/stm32f4/mphalport.h b/ports/stm32f4/mphalport.h
index df2f0ca65..b392cb0f8 100644
--- a/ports/stm32f4/mphalport.h
+++ b/ports/stm32f4/mphalport.h
@@ -24,20 +24,28 @@
* THE SOFTWARE.
*/
-#ifndef __STM32F4_HAL
-#define __STM32F4_HAL
+#ifndef MICROPY_INCLUDED_STM32F4_MPHALPORT_H
+#define MICROPY_INCLUDED_STM32F4_MPHALPORT_H
-#include <stdbool.h>
-#include <stdint.h>
+#include "py/obj.h"
+
+#include "lib/oofatfs/ff.h"
-#include "lib/utils/interrupt_char.h"
-#include "py/mpconfig.h"
#include "supervisor/shared/tick.h"
+// Global millisecond tick count (driven by SysTick interrupt).
+static inline mp_uint_t mp_hal_ticks_ms(void) {
+ return supervisor_ticks_ms32();
+}
+// Number of bytes in receive buffer
+volatile uint8_t usb_rx_count;
+volatile bool mp_cdc_enabled;
+
+int receive_usb(void);
-#define mp_hal_ticks_ms() ((mp_uint_t) supervisor_ticks_ms32())
-//#define mp_hal_delay_us(us) NRFX_DELAY_US((uint32_t) (us))
+void mp_hal_set_interrupt_char(int c);
-bool mp_hal_stdin_any(void);
+void mp_hal_disable_all_interrupts(void);
+void mp_hal_enable_all_interrupts(void);
-#endif
+#endif // MICROPY_INCLUDED_STM32F4_MPHALPORT_H
generated by cgit v1.2.3 (git 2.39.1) at 2026-08-08 17:45:27 +0000