eddy/stm32samples
1
0
Fork 0
mirror of https://github.com/eddyem/stm32samples.git synced 2026-02-28 11:54:30 +03:00
Code Issues Packages Projects Releases Wiki Activity

fixed some problems with USB

Browse Source
This commit is contained in:
Edward Emelianov
2025-04-02 16:09:27 +03:00
parent e5b3edeffa
commit c449cb7108
4 changed files with 17 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
F1:F103/USB_New_concept/USB_NEW_concept_CDC/usb_dev.c
View File

@@ -183,6 +183,7 @@ void usb_class_request(config_pack_t *req, uint8_t *data, uint16_t datalen){
int USB_sendall(){
while(lastdsz > 0){
if(!CDCready) return FALSE;
IWDG->KR = IWDG_REFRESH;
}
return TRUE;
}
@@ -192,12 +193,13 @@ int USB_send(const uint8_t *buf, int len){
if(!buf || !CDCready || !len) return FALSE;
DBG("USB_send");
while(len){
IWDG->KR = IWDG_REFRESH;
int a = RB_write((ringbuffer*)&rbout, buf, len);
if(lastdsz == 0) send_next(); // need to run manually - all data sent, so no IRQ on IN
if(a > 0){
len -= a;
buf += a;
} else if (a < 0) continue; // do nothing if buffer is in reading state
if(lastdsz == 0) send_next(); // need to run manually - all data sent, so no IRQ on IN
}
return TRUE;
}
@@ -206,9 +208,10 @@ int USB_putbyte(uint8_t byte){
if(!CDCready) return FALSE;
int l = 0;
while((l = RB_write((ringbuffer*)&rbout, &byte, 1)) != 1){
IWDG->KR = IWDG_REFRESH;
if(lastdsz == 0) send_next(); // need to run manually - all data sent, so no IRQ on IN
if(l < 0) continue;
}
if(lastdsz == 0) send_next(); // need to run manually - all data sent, so no IRQ on IN
return TRUE;
}