Posted on October 11, 2017 at 19:02 Hi
cabarbaye.Aur_lien
,
With the help of RM0390 'STM32F446xx advanced ARM®-based 32-bit MCUs' document, I have set up the use-case for 'Triple combined regular simultaneous + inject simultaneous mode' with 2 regular channels per ADC and one channel for injected with ADC1.
'Scan Conversion Mode' is set to 'Enabled'.
'End Of Conversion Selection' is set to 'EOC flag at end of all conversions', i.e. the EOC bit is set at the end of each sequence of regular conversions. Overrun detection is enabled only if DMA=1. 'DMA Continuous Requests' set to 'Enabled', i.e. DMA requests are issued as long as data are converted and DMA=1.
'Sampling Time' is set the same value for each channel.
'DMA Request' is added for ADC1 as master in 'DMA Settings', with corresponding interrupt handler function, i.e. 'DMA2 stream0 global interrupt' in 'NVIC Settings' for 'ADC1 Configuration'.
DMA 'Mode' is set to 'Circular' for 'Peripheral' to Memory with 'Data Width' set to Word (32bits). For ADC1 for example, a channel is added in 'ADC_Injected_Conversion Mode' and 'ADC1, ADC2 and ADC3 interrupts' is 'Enabled' in 'NVIC Settings'
The ADC1 is master in 'Triple combined regular simultaneous + inject simultaneous mode' use case
and the following user-code sequence is needed:
#define ADC_REGULAR_CONVERTERTED_NUMBER_OF_CHANNEL (uint32_t)6
static volatile uint32_t adcRegularConvertedValue[ADC_REGULAR_CONVERTERTED_NUMBER_OF_CHANNEL] /*__attribute__ ((aligned (4)))*/;
...
HAL_ADC_Start(&hadc3)
HAL_ADC_Start(&hadc2)
HAL_ADCEx_MultiModeStart_DMA(&hadc1, (uint32_t*)&adcRegularConvertedValue[0], ADC_REGULAR_CONVERTERTED_NUMBER_OF_CHANNEL)
...
HAL_ADCEx_InjectedStart_IT(&hadc1)
...
HAL_ADC_Stop(&hadc3)
HAL_ADC_Stop(&hadc2)
HAL_ADC_Stop(&hadc1)
with
void HAL_ADC_ConvCpltCallback(ADC_HandleTypeDef* AdcHandle){
if(ADC1 == AdcHandle->Instance){
LoggerSetMessage('R-ADC1-E\n');
}
}
void HAL_ADC_ConvHalfCpltCallback(ADC_HandleTypeDef* AdcHandle){
if(ADC1 == AdcHandle->Instance){
LoggerSetMessage('R-ADC1-H\n');
}
}
void HAL_ADCEx_InjectedConvCpltCallback(ADC_HandleTypeDef* AdcHandle){
if(ADC1 == AdcHandle->Instance){
adcInjectedConvertedValue_0 = HAL_ADCEx_InjectedGetValue(AdcHandle, ADC_INJECTED_RANK_1);
LoggerSetMessage('I-ADC1\n');
}
}
void AdcPrintRegularConvertedValue(void){
for(uint8_t i = 0; i < sizeof(adcRegularConvertedValue)/sizeof(adcRegularConvertedValue[0]); i++) {
printf('R-%d: %08lx ', i, adcRegularConvertedValue[i]);
}
printf('\n\n');
}
A log for execution of the use-case.
$ stty -F /dev/ttyS17 115200 && cat /dev/ttyS17
main()> Oct 11 2017 18:31:25
@ Looping 0
@ Just started regular
0 R-ADC1-H
1 R-ADC1-E
R-0: 00000415 R-1: 00000308 R-2: 000002dd R-3: 000002ea R-4: 000002be R-5: 000001f5
@ Just started injected
2 I-ADC1
@ I-0: 000003a5
@ Just stopped all
@ Looping 1
@ Just started regular
3 R-ADC1-H
4 R-ADC1-E
R-0: 00000387 R-1: 000001fc R-2: 000001cb R-3: 00000308 R-4: 000002c6 R-5: 000001f6
@ Just started injected
5 I-ADC1
@ I-0: 000003a1
@ Just stopped all
@ Looping 2
@ Just started regular
6 R-ADC1-H
7 R-ADC1-E
R-0: 00000391 R-1: 000001fc R-2: 000001dd R-3: 0000032a R-4: 000002df R-5: 0000022b
@ Just started injected
8 I-ADC1
@ I-0: 0000039c
@ Just stopped all
Some debug elements:
NUCLEO-F446RE-ADC Debug [Ac6 STM32 Debugging]
NUCLEO-F446RE-ADC.elf
Thread #1 (Suspended : Breakpoint)
HAL_ADC_ConvHalfCpltCallback() at main.c:187 0x80004e6
ADC_MultiModeDMAHalfConvCplt() at stm32f4xx_hal_adc_ex.c:1,085 0x800160c
HAL_DMA_IRQHandler() at stm32f4xx_hal_dma.c:850 0x80023e2
DMA2_Stream0_IRQHandler() at stm32f4xx_it.c:214 0x8000cdc
<signal handler called>() at 0xfffffff9
UART_WaitOnFlagUntilTimeout() at stm32f4xx_hal_uart.c:2,113 0x800354a
HAL_UART_Transmit() at stm32f4xx_hal_uart.c:672 0x8003736
_write() at main.c:280 0x8000642
_write_r() at 0x80045d0
__sflush_r() at 0x8003b36
__swbuf_r() at 0x800394e
_puts_r() at 0x800388c
main() at main.c:367 0x80009e4 ---> printf('@ Just started regular\n');
openocd
gdb
NUCLEO-F446RE-ADC Debug [Ac6 STM32 Debugging]
NUCLEO-F446RE-ADC.elf
Thread #1 (Suspended : Breakpoint)
HAL_ADC_ConvCpltCallback() at main.c:167 0x8000492
ADC_MultiModeDMAConvCplt() at stm32f4xx_hal_adc_ex.c:1,066 0x8001668
HAL_DMA_IRQHandler() at stm32f4xx_hal_dma.c:929 0x8002492
DMA2_Stream0_IRQHandler() at stm32f4xx_it.c:214 0x8000cdc
<signal handler called>() at 0xfffffff9
UART_WaitOnFlagUntilTimeout() at stm32f4xx_hal_uart.c:2,113 0x800354a
HAL_UART_Transmit() at stm32f4xx_hal_uart.c:672 0x8003736
_write() at main.c:280 0x8000642
_write_r() at 0x80045d0
__sflush_r() at 0x8003b36
__swbuf_r() at 0x800394e
_puts_r() at 0x800388c
main() at main.c:367 0x80009e4 ---> printf('@ Just started regular\n');
openocd
gdb
NUCLEO-F446RE-ADC Debug [Ac6 STM32 Debugging]
NUCLEO-F446RE-ADC.elf
Thread #1 (Suspended : Breakpoint)
HAL_ADCEx_InjectedConvCpltCallback() at main.c:207 0x800053a
HAL_ADC_IRQHandler() at stm32f4xx_hal_adc.c:970 0x80013b0
ADC_IRQHandler() at stm32f4xx_it.c:198 0x8000cb8
<signal handler called>() at 0xfffffff9
UART_WaitOnFlagUntilTimeout() at stm32f4xx_hal_uart.c:2,113 0x800354e
HAL_UART_Transmit() at stm32f4xx_hal_uart.c:672 0x8003736
_write() at main.c:280 0x8000642
_write_r() at 0x80045d0
__sflush_r() at 0x8003b36
__swbuf_r() at 0x800394e
_puts_r() at 0x800388c
main() at main.c:379 0x8000a0a ---> printf('@ Just started injected\n');
openocd
gdb
Note also that CubeMx in 4.1 version is currently available and it is recommended to upgrade to new version.
Hopping it helps understanding the use-case.
Regards.
Cyril
