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This commit is contained in:
Edward Emelianov
2025-09-16 22:53:15 +03:00
parent ec8d56c4ae
commit 3e701f147f
25 changed files with 1345 additions and 982 deletions
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21
F3:F303/I2C_scan/main.c
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@@ -20,7 +20,7 @@
#include "hardware.h"
#include "proto.h"
#include "strfunc.h"
#include "usb.h"
#include "usb_dev.h"
#define MAXSTRLEN RBINSZ
@@ -38,18 +38,19 @@ int main(void){
StartHSI();
SysTick_Config((uint32_t)48000); // 1ms
}
USBPU_OFF();
hw_setup();
i2c_setup(I2C_SPEED_10K); // start from lowest speed
USB_setup();
USBPU_ON();
uint32_t ctr = Tms;
while(1){
if(Tms - ctr > 499){
ctr = Tms;
pin_toggle(GPIOB, 1 << 1 | 1 << 0); // toggle LED @ PB0
}
USB_proc();
int l = USB_receivestr(inbuff, MAXSTRLEN);
if(l < 0) USND("ERROR: USB buffer overflow or string was too long\n");
if(l < 0) USND("ERROR: USB buffer overflow or string was too long");
else if(l){
const char *ans = parse_cmd(inbuff);
if(ans) USND(ans);
@@ -57,16 +58,14 @@ int main(void){
if(i2c_scanmode){
uint8_t addr;
int ok = i2c_scan_next_addr(&addr);
if(addr == I2C_ADDREND) USND("Scan ends\n");
if(addr == I2C_ADDREND) USND("Scan ends");
else if(ok){
USND(uhex2str(addr));
USND(" ("); USND(u2str(addr));
USND(") - found device\n");
U(uhex2str(addr));
U(" ("); U(u2str(addr));
U(") - found device\n");
}
}
if(i2c_got_DMA){
i2c_bufdudump();
i2c_got_DMA = 0;
}
if(i2cdma_haderr()) USND("Error reading I2C using DMA");
if(i2cdma_getbuf(NULL)) i2c_bufdudump();
}
}