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This commit is contained in:
Edward Emelianov
2023-01-11 21:19:18 +03:00
parent a5e420ac51
commit e98aa11f72
29 changed files with 54 additions and 46 deletions
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5
G0:G070/i2c/usart.c
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@@ -19,7 +19,6 @@
#include <stm32g0.h>
#include <string.h>
#include "strfunc.h" // mymemcpy
#include "usart.h"
// RX/TX DMA->CCR without EN flag
@@ -84,7 +83,7 @@ int usart3_send(const char *str, int len){
int rest = UARTBUFSZ - txlen[tbufno];
if(rest == 0 && !u3txrdy) return 0; // buffer is full while transmission in process
if(len < rest) rest = len;
mymemcpy((char*)(tbuf[tbufno] + txlen[tbufno]), str, rest);
memcpy((char*)(tbuf[tbufno] + txlen[tbufno]), str, rest);
txlen[tbufno] += rest;
if(!u3txrdy) return rest;
if(txlen[tbufno] == UARTBUFSZ) usart3_sendbuf();
@@ -92,7 +91,7 @@ int usart3_send(const char *str, int len){
len -= rest;
// now fill another - empty - buffer
if(len > UARTBUFSZ) len = UARTBUFSZ;
mymemcpy((char*)tbuf[tbufno], str + rest, len);
memcpy((char*)tbuf[tbufno], str + rest, len);
txlen[tbufno] = len;
return rest + len;
}