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feature: state controlled by received data on CDC

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Derisis13
2022-12-12 17:11:37 +01:00
parent 3731265cde
commit ac391abcb0
3 changed files with 100 additions and 8 deletions
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60
USB_DEVICE/App/usbd_cdc_if.c
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@@ -22,7 +22,7 @@
#include "usbd_cdc_if.h"
/* USER CODE BEGIN INCLUDE */
#include <stdio.h>
/* USER CODE END INCLUDE */
/* Private typedef -----------------------------------------------------------*/
@@ -31,7 +31,9 @@
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
extern state st;
extern uint16_t i2c_address;
extern uint32_t limit_address;
/* USER CODE END PV */
/** @addtogroup STM32_USB_OTG_DEVICE_LIBRARY
@@ -261,6 +263,60 @@ static int8_t CDC_Receive_FS(uint8_t* Buf, uint32_t *Len)
/* USER CODE BEGIN 6 */
USBD_CDC_SetRxBuffer(&hUsbDeviceFS, &Buf[0]);
USBD_CDC_ReceivePacket(&hUsbDeviceFS);
if (st == run) {
if (Buf[0] == 'r') {
switch (Buf[1]) {
case 'i':
st = read_i2c;
break;
case 's':
st = read_spi;
break;
case '2':
st = read_d28;
break;
case '3':
st = read_d32;
break;
default:
st = invalid;
return (USBD_OK);
}
}
else if (Buf[0] == 'w') {
switch (Buf[1]) {
case 'i':
st = write_i2c;
break;
case 's':
st = write_spi;
break;
case '2':
st = write_d28;
break;
case '3':
st = write_d32;
break;
default:
st = invalid;
return (USBD_OK);
}
}
else {
st = invalid;
return (USBD_OK);
}
if (sscanf((char *)Buf + 2, "%lx", &limit_address) != 1) {
st = invalid;
return (USBD_OK);
}
if (st == read_i2c || st == write_i2c) {
if (sscanf((char *)Buf + 2, "%*lx %hx", &i2c_address) != 1) {
st = invalid;
return (USBD_OK);
}
}
}
return (USBD_OK);
/* USER CODE END 6 */
}