I have a question about STM32 & Kiel.
in my project i can change the ADC analog watchdog HTR & LTR registers with direct number same as below:
ADC1->HTR =(500);
but when i try to assign a variable to this register same as below:
ADC1->HTR = (ADC_HVAL);
i have error:
../Src/main.c(120): error: #513: a value of type "uint32_t *" cannot be assigned to an entity of type "uint32_t"
I change the variable type but the error remain.
please help me
thanks
You need type-casting to set the variable. Just assign the value of the pointer.
ADC1->HTR = (*ADC_HVAL);
Related
I have a data flow and my requirement is to capture the error details into a variable when it fails and assign this variable to a parameter in the next data flow. I tried to achieve this until the second stage(With help) as below, but I'm unable to get this variable assigned to a parameter in the next data flow. The error I get is - Expression cannot be parsed
What do I do later?
This parameter is assigned to a column in the data flow and I use this column to update the table in the dedicated pool with the relevant error message.
I tried to reproduce the same in my environment and I got the same error
The above scenario fails, because dataflow fails to parse ' ' and / in your error message.
To resolve above error,please follow below steps:
I just create the error fail1 with message containing a different character.
Go to set variable : Create a variable and added dynamic content to the value.
#replace(replace(string(activity('Fail1').output.message),pipeline().parameters.quote,'"'),'\','/')
Output:
Updated:
Parameter
I have checked stm32f4xx_hal_gpio.c or .h, but I can't find out by Alternate is 0 defualtly
Alternate is not 0 defualtly
Armandas has explained what the value will be if you do not assign to it.
The legal values that can be assigned to the member Alternate are listed under GPIO_Alternate_function_selection in the file stm32f4xx_hal_gpio_ex.h, for example GPIO_AF9_TIM12.
If you are not using alternate function mode, leave the value undefined or set it to zero.
The struct itself does not have a default value. I'm going to assume that you're askign about the value of hh as shown in your code.
As your code is currently written, hh is a stack variable and is, therefore, uninitialized.
To initialize hh to all-zeros, you should write:
GPIO_InitTypeDef hh = {0};
In a real-world code, you should manually set all the necessary fields of the struct.
See this page for more information on struct initialization.
when we can not determine which variable will be determine by a constant，i use a list use a list to store variables ,but the BooleanPolynomialRing do not support change the BooleanPolynomial by variables in list, It seems that it can only be changed by using the variable name; but when we encounter this situation ,is there another way to solve this problem
from sage.crypto.boolean_function import BooleanFunction
R=BooleanPolynomialRing(4,"a,b,c,d")
R.inject_variables()
S=R.gens()
print(S)
f=a*b+b*c
print(f(a=1))
print(f(S[0]=1))
enter image description here
I have variable group variable as given below
opp453.Name = "Raj"
pqr325.Name = "Shyam"
I know can I retrieve the variable group as below
$(opp453.Name) or $(pqr325.Name)
If I have another variable
$ptrref=opp453 or
$ptrref=pqr325
Then how can I refer to this variable inside the first variable
$($ptrref.Name)
to retrieve the original value
I think this is impossible to achieve at present because Nested variables are not supported yet in build pipeline/variable group.You can check this similar thread for some more details.
We could also use the same workaround, using InlinePowershell task to determine the value of ptrref, and set the value of opp453.Name/ pqr325.Name according to the value of ptrref.
I have a Simulink model, the controller part of which I'm trying to code onto an embedded controller. Following the example here I can toggle any specific pin, but appropriately setting the Pin number parameter of the Arduino Digital Output block.
However, I would like to set this parameter to a variable name which is available in the workspace (for example myPinNumber), doing so in the example works as expected, i.e. if I set myPinNumber = 13 in the workspace, and set the Pin number parameter of the block to myPinNumber it behaves the same as if I'd directly written 13 in the block, all good.
However, it does not work when I try to set the Pin Number parameter to an element of an array. For example if I define myPinNumbers = [12 13 14], and try to set the Pin Number parameter of the Digital Output block to pinNumber(2) I get the following error:
Error in 'model_folder/model_name/Digital Output1': Initialization commands cannot be evaluated.
Caused by:
Digital Output block parameter Pin number must be an integer between 0 and 53.
Component: Simulink | Category: Block error
Most other blocks in Simulink would allow setting a parameter value to a particular element of a work-space array in this way. Does anyone know of a fix/work-around?