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USB CDC on STM32G0B1 works

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This commit is contained in:
Edward Emelianov
2026-03-04 23:02:47 +03:00
parent 8f6a80e2c7
commit b5a4a21f51
46 changed files with 4407 additions and 20 deletions
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13
G0:G070,G0B1/g0b1/ringbuffer.c
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@@ -119,14 +119,19 @@ static int readto(ringbuffer *b, uint8_t byte, uint8_t *s, int len){
* @brief RB_readto fill array `s` with data until byte `byte` (with it)
* @param b - ringbuffer
* @param byte - check byte
* @param s - buffer to write data
* @param len - length of `s`
* @param s - buffer to write data or NULL to clear data
* @param len - length of `s` or 0 to clear data
* @return amount of bytes written (negative, if len<data in buffer or buffer is busy)
*/
int RB_readto(ringbuffer *b, uint8_t byte, uint8_t *s, int len){
if(!b || b->busy || !s || len < 1) return -1;
if(!b || b->busy) return -1;
b->busy = 1;
int n = readto(b, byte, s, len);
int n = 0;
if(s && len > 0){
n = readto(b, byte, s, len);
}else{
incr(b, &b->head, lento(b, byte)); // just throw data out
}
b->busy = 0;
return n;
}