calculating checksum of struct

[VYoun]

Hello,

I need to calculate checksum over a struct I have defined. Can anyone please help me with this?

The data is structured as below:

typedef struct eeprom_struct {
 
//	char serial_number[5];
	float detector_comp_ch0;
	float detector_comp_ch1;
	float detector_comp_ch2;
	float detector_comp_ch3;
	float detector_comp_ch4;
	float detector_comp_ch5;
	float detector_comp_ch6;
	float detector_comp_ch7;
	char serial_number[14];
	uint checksum;
 
 
} eeprom_struct;
 

I know this is not directly related to STM32 MCUs, but I really need to solve this, and could not get an answer anywhere else.

Thank you in advance for your help.

Best regards,

Vouria

[Tesla DeLorean · Accepted solution]

This all seems like mundane C coding,

uint sum32(int size, uint8_t *ptr)

{

uint sum = 0;

while(size--) sum += *ptr++; // sum bytes over buffer

return(sum);

}