MALLOC Problem

Question

Hello, I wrote the simple program below. But always return ERROR. What am I doing wrong? Thanks! (I’m using WizWiki-7500P with lastes sources from github) #include #include #include "W7500x_uart.h" int main() { SystemInit(); SysTick_Config((GetSystemClock()/1000)); S_UART_Init(9600); printf("System frequency: %d Hz ", GetSystemClock()); uint8_t * cnt = malloc(sizeof(uint8_t)); if (NULL == cnt) { printf("ERROR"); } else { printf("OK"); } while(1) { } }

becky · Answer

Hello, I apologize for the delay. I modified the following and confirmed that it works well. I moved the malloc declaration to the front and changed the uart baudrate to 115200. Thankyou. int main() { uint8_t *cnt=malloc(sizeof(uint8_t)); SystemInit(); SysTick_Config((GetSystemClock()/1000)); S_UART_Init(115200); printf("System frequency: %d Hz
", GetSystemClock()); if (NULL == cnt) { printf("ERROR"); } else { printf("OK"); } while(1) { } }