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Merge pull request #10063 from ejtagle/bugfix-2.0.x

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[2.0.x] DUE - add programming capability to native port
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Bob-the-Kuhn 2018-03-13 22:07:21 -05:00 committed by GitHub
commit c4467da53a
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1 changed files with 17 additions and 3 deletions
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20
Marlin/src/HAL/HAL_DUE/usb/usb_task.c
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@ -48,6 +48,7 @@
#include "conf_usb.h" #include "conf_usb.h"
#include "udc.h" #include "udc.h"
#include <Arduino.h> #include <Arduino.h>
#include <Reset.h>
static volatile bool main_b_msc_enable = false; static volatile bool main_b_msc_enable = false;
static volatile bool main_b_cdc_enable = false; static volatile bool main_b_cdc_enable = false;
@ -80,11 +81,24 @@ void usb_task_cdc_rx_notify(const uint8_t port) { }
* *
* \param cfg line configuration * \param cfg line configuration
*/ */
void usb_task_cdc_config(const uint8_t port, usb_cdc_line_coding_t *cfg) { } static uint16_t dwDTERate = 0;
void usb_task_cdc_config(const uint8_t port, usb_cdc_line_coding_t *cfg) {
// Store last DTE rate
dwDTERate = cfg->dwDTERate;
}
void usb_task_cdc_set_dtr(const uint8_t port, const bool b_enable) { void usb_task_cdc_set_dtr(const uint8_t port, const bool b_enable) {
if (b_enable) { // Implement Arduino-Compatible kludge to enter programming mode from
} else { // the native port:
// "Auto-reset into the bootloader is triggered when the port, already
// open at 1200 bps, is closed."
if (1200 == dwDTERate) {
// We check DTR state to determine if host port is open (bit 0 of lineState).
if (!b_enable)
initiateReset(250);
else
cancelReset();
} }
} }