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all interfaces works!

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This commit is contained in:
Edward Emelianov
2026-02-12 23:16:48 +03:00
parent e17058b2de
commit 2fa218f695
13 changed files with 55 additions and 25 deletions
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1
F1:F103/BISS_C_encoders/TODO Normal file
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@@ -0,0 +1 @@
fix error in USB_send (RB_write returns 0 in case of overflow!)

2
F3:F303/InterfaceBoard/Makefile
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@@ -2,7 +2,7 @@ BINARY := multiiface
# MCU code
MCU := F303xc
# change this linking script depending on particular MCU model,
LDSCRIPT := stm32f303xC.ld
LDSCRIPT := stm32f303xB.ld
DEFINES := -DUSB1_16
include ../makefile.f3

12
F3:F303/InterfaceBoard/main.c
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@@ -42,20 +42,26 @@ int main(void){
USB_setup();
//uint32_t ctr = Tms;
USBPU_ON();
int maxno = (Config_mode) ? ICFG : InterfacesAmount;
while(1){
// Put here code working WITOUT USB connected
if(!usbON) continue;
for(int i = 0; i < 6; ++i){ // just echo for first time
for(int i = 0; i < maxno; ++i){ // just echo for first time
if(!CDCready[i]) continue;
int l = USB_receive(i, (uint8_t*)inbuff, MAXSTRLEN);
if(l) USB_send(i, (uint8_t*)inbuff, l);
}
// and here is code what should run when USB connected
if(Config_mode){
if(Config_mode && CDCready[ICFG]){
/*if(Tms - ctr > 999){
ctr = Tms;
CFGWR("I'm alive\n");
}*/
int l = USB_receivestr(ICFG, inbuff, MAXSTRLEN);
if(l < 0) CFGWR("ERROR: USB buffer overflow or string was too long\n");
else if(l){
const char *ans = parse_cmd(inbuff);
if(ans) CFGWR(ans);
if(ans) CFGWRn(ans);
}
}
}

BIN
F3:F303/InterfaceBoard/multiiface.bin
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Binary file not shown.

1
F3:F303/InterfaceBoard/multiiface.config
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@@ -5,3 +5,4 @@
#define STM32F303xb
#define __thumb2__ 1
#define __ARM_ARCH_7M__
#define USB1_16

2
F3:F303/InterfaceBoard/multiiface.creator.user
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@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE QtCreatorProject>
<!-- Written by QtCreator 18.0.2, 2026-02-11T23:33:00. -->
<!-- Written by QtCreator 18.0.2, 2026-02-12T23:15:35. -->
<qtcreator>
<data>
<variable>EnvironmentId</variable>

8
F3:F303/InterfaceBoard/usb_descr.h
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@@ -57,15 +57,17 @@
// buffer sizes
// for USB FS EP0 buffers are from 8 to 64 bytes long
#define USB_EP0BUFSZ 64
#define USB_EP0BUFSZ 16
// virtual
#define USB_EP1BUFSZ 10
// Rx/Tx EPs (USB_BTABLE_SIZE-64-2*USB_EP0BUFSZ)/(2*InterfacesAmount) rounded to 8
// 534 / 112 -> 4
#define _RTBUFSZ8 (((USB_BTABLE_SIZE) - 64 - (2 * (USB_EP0BUFSZ)))/(16 * (InterfacesAmount)))
// ([btable size] - [registers] - [EP0 buffers])/([interfaces buffers (Rx/Tx)])/8 (for rounding by 8 later)
#define _RTBUFSZ8 (((USB_BTABLE_SIZE)/(ACCESSZ) - (LASTADDR_DEFAULT) - (2 * (USB_EP0BUFSZ)))/(16 * (InterfacesAmount)))
// 32 bytes; so we have free 86 bytes which can't be used
#define USB_RXBUFSZ (8 * (_RTBUFSZ8))
#define USB_TXBUFSZ (8 * (_RTBUFSZ8))
//#define USB_RXBUFSZ 8
//#define USB_TXBUFSZ 8
// string descriptors
enum{

26
F3:F303/InterfaceBoard/usb_dev.c
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@@ -95,21 +95,21 @@ static void send_next(uint8_t ifno){
// data IN/OUT handler
static void rxtx_handler(){
uint8_t ifno = (USB->ISTR & USB_ISTR_EPID) - 1;
uint8_t epno = (USB->ISTR & USB_ISTR_EPID), ifno = epno - 1;
if(ifno > InterfacesAmount-1){
return;
}
uint16_t epstatus = KEEP_DTOG(USB->EPnR[1+ifno]);
uint16_t epstatus = KEEP_DTOG(USB->EPnR[epno]);
if(RX_FLAG(epstatus)){ // receive data
if(rcvbuflen[ifno]){
bufovrfl[ifno] = 1; // lost last data
rcvbuflen[ifno] = 0;
}
rcvbuflen[ifno] = EP_Read(1+ifno, (uint8_t*)rcvbuf[ifno]);
USB->EPnR[1+ifno] = epstatus & ~(USB_EPnR_CTR_RX | USB_EPnR_STAT_RX | USB_EPnR_STAT_TX); // keep RX in STALL state until read data
rcvbuflen[ifno] = EP_Read(epno, (uint8_t*)rcvbuf[ifno]);
USB->EPnR[epno] = epstatus & ~(USB_EPnR_CTR_RX | USB_EPnR_STAT_RX | USB_EPnR_STAT_TX); // keep RX in STALL state until read data
chkin(ifno); // try to write current data into RXbuf if it's not busy
}else{ // tx successfull
USB->EPnR[1+ifno] = (epstatus & ~(USB_EPnR_CTR_TX | USB_EPnR_STAT_TX)) ^ USB_EPnR_STAT_RX;
USB->EPnR[epno] = (epstatus & ~(USB_EPnR_CTR_TX | USB_EPnR_STAT_TX)) ^ USB_EPnR_STAT_RX;
send_next(ifno);
}
}
@@ -200,7 +200,7 @@ int USB_sendall(uint8_t ifno){
uint32_t T0 = Tms;
while(lastdsz[ifno] > 0){
if(Tms - T0 > DISCONN_TMOUT){
break_handler(ifno);
//break_handler(ifno);
return FALSE;
}
if(!CDCready[ifno]) return FALSE;
@@ -215,12 +215,20 @@ int USB_send(uint8_t ifno, const uint8_t *buf, int len){
uint32_t T0 = Tms;
while(len){
if(Tms - T0 > DISCONN_TMOUT){
break_handler(ifno);
//break_handler(ifno);
return FALSE;
}
if(!CDCready[ifno]) return FALSE;
IWDG->KR = IWDG_REFRESH;
int a = RB_write((ringbuffer*)&rbout[ifno], buf, len);
int l = RB_datalen((ringbuffer*)&rbout[ifno]);
if(l < 0) continue;
int portion = rbout[ifno].length - 1 - l;
if(portion < 1){
if(lastdsz[ifno] < 0) send_next(ifno);
continue;
}
if(portion > len) portion = len;
int a = RB_write((ringbuffer*)&rbout[ifno], buf, portion);
if(a > 0){
len -= a;
buf += a;
@@ -238,7 +246,7 @@ int USB_putbyte(uint8_t ifno, uint8_t byte){
uint32_t T0 = Tms;
while((l = RB_write((ringbuffer*)&rbout[ifno], &byte, 1)) != 1){
if(Tms - T0 > DISCONN_TMOUT){
break_handler(ifno);
//break_handler(ifno);
return FALSE;
}
if(!CDCready[ifno]) return FALSE;

4
F3:F303/InterfaceBoard/usb_dev.h
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@@ -41,8 +41,8 @@ void break_handler(uint8_t ifno);
void clstate_handler(uint8_t ifno, uint16_t val);
void linecoding_handler(uint8_t ifno, usb_LineCoding *lc);
// as ugly CDC have no BREAK after disconnected client in non-canonical mode, we should use timeout - more than 2ms
#define DISCONN_TMOUT (2)
// as ugly CDC have no BREAK after disconnected client in non-canonical mode, we should use timeout - near 2s
#define DISCONN_TMOUT (2000)
// sizes of ringbuffers for outgoing and incoming data
#define RBOUTSZ (256)

4
F3:F303/InterfaceBoard/usb_lib.c
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@@ -80,7 +80,7 @@ void WEAK usb_standard_request(){
}
break;
case REQ_RECIPIENT_ENDPOINT:
if(setup_packet->bRequest == CLEAR_FEATURE){
if(setup_packet->bRequest == CLEAR_FEATURE){ /* what to do here? */
}else{ /* wrong */ }
break;
default:
@@ -138,7 +138,7 @@ static void EP0_Handler(){
case REQ_TYPE_STANDARD:
if(SETUP_FLAG(epstatus)){
usb_standard_request();
}else{ }
}else{ /* ??? */ }
break;
case REQ_TYPE_CLASS:
usb_class_request(setup_packet, ep0databuf, ep0dbuflen);

5
F3:F303/InterfaceBoard/usb_lib.h
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@@ -63,7 +63,7 @@
#if defined STM32F0
#define USB_BTABLE_SIZE 1024
#elif defined STM32F3
#define USB_BTABLE_SIZE 726
#define USB_BTABLE_SIZE 1024
//#warning "Please, check real buffer size due to docs"
#else
#error "define STM32F0 or STM32F3"
@@ -72,7 +72,8 @@
#if defined STM32F0
#define USB_BTABLE_SIZE 768
#elif defined STM32F3
#define USB_BTABLE_SIZE 726
// 1024 bytes for USB and 256 from them are for CAN (on lower F303 with half-addr ACCESSZ=2 !!!)
#define USB_BTABLE_SIZE 768
//#warning "Please, check real buffer size due to docs"
#else // STM32F103: 1024 bytes but with 32-bit addressing
#define USB_BTABLE_SIZE 1024

4
F3:F303/InterfaceBoard/version.inc
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@@ -1,2 +1,2 @@
#define BUILD_NUMBER "20"
#define BUILD_DATE "2026-02-11"
#define BUILD_NUMBER "41"
#define BUILD_DATE "2026-02-12"

11
F3:F303/inc/ld/stm32f303xC.ld Normal file
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@@ -0,0 +1,11 @@
MEMORY
{
rom (rx) : ORIGIN = 0x08000000, LENGTH = 256K
ram (rwx) : ORIGIN = 0x20000000, LENGTH = 40K
ccmram (rwx) : ORIGIN = 0x10000000, LENGTH = 8K
}
PROVIDE(_BLOCKSIZE = 2048);
/* Include the common ld script. */
INCLUDE stm32f3.ld