ManuelW/grbl-LPC-CoreXY
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Soft reset on DTR change

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This commit is contained in:
Todd Fleming 2017-01-16 14:20:52 -05:00
parent e0438230b5
commit 3ebbfa4dd3
4 changed files with 29 additions and 11 deletions
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2
Makefile
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@ -157,7 +157,7 @@ build/%.hex : build/%.elf
.PHONY: flash .PHONY: flash
flash: build/grbl.hex flash: build/grbl.hex
fm COM(13, 115200) DEVICE(LPC1769, 0.000000, 0) HARDWARE(BOOTEXEC, 50, 100) ERASEUSED(build\grbl.hex, PROTECTISP) HEXFILE(build\grbl.hex, NOCHECKSUMS, NOFILL, PROTECTISP) fm COM(15, 115200) DEVICE(LPC1769, 0.000000, 0) HARDWARE(BOOTEXEC, 50, 100) ERASEUSED(build\grbl.hex, PROTECTISP) HEXFILE(build\grbl.hex, NOCHECKSUMS, NOFILL, PROTECTISP)
.PHONY: clean .PHONY: clean
clean: clean:

15
VCOM_lib/usbSerial.c
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@ -86,6 +86,7 @@ static U8 txdata[VCOM_FIFO_SIZE];
static fifo_t txfifo; static fifo_t txfifo;
//static fifo_t rxfifo; //static fifo_t rxfifo;
static UsbSerialLineStateCallback* usbSerialLineStateCallback = nullptr;
static UsbSerialReadCallback* usbSerialReadCallback = nullptr; static UsbSerialReadCallback* usbSerialReadCallback = nullptr;
// forward declaration of interrupt handler // forward declaration of interrupt handler
@ -299,10 +300,13 @@ static BOOL HandleClassRequest(TSetupPacket *pSetup, int *piLen, U8 **ppbData)
break; break;
// set control line state // set control line state
case SET_CONTROL_LINE_STATE: case SET_CONTROL_LINE_STATE: {
// bit0 = DTR, bit = RTS bool dtr = (pSetup->wValue >> 0) & 1;
bool rts = (pSetup->wValue >> 1) & 1;
break; if (usbSerialLineStateCallback)
usbSerialLineStateCallback(dtr, rts);
break;
}
default: default:
return FALSE; return FALSE;
@ -376,8 +380,9 @@ void enable_USB_interrupts(void);
main main
==== ====
**************************************************************************/ **************************************************************************/
int usbSerialInit(UsbSerialReadCallback* usbSerialReadCallback) int usbSerialInit(UsbSerialLineStateCallback* usbSerialLineStateCallback, UsbSerialReadCallback* usbSerialReadCallback)
{ {
::usbSerialLineStateCallback = usbSerialLineStateCallback;
::usbSerialReadCallback = usbSerialReadCallback; ::usbSerialReadCallback = usbSerialReadCallback;
// initialise stack // initialise stack

5
VCOM_lib/usbSerial.h
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@ -98,10 +98,13 @@ void VCOM_gets_echo(char *str); // gets string terminated in '\r' or '\n' and ec
#include "serial_fifo.h" #include "serial_fifo.h"
// Receives line state. Called by an interrupt.
typedef void UsbSerialLineStateCallback(bool dtr, bool rts);
// Receives serial data. Called by an interrupt. // Receives serial data. Called by an interrupt.
typedef void UsbSerialReadCallback(const U8* data, unsigned len); typedef void UsbSerialReadCallback(const U8* data, unsigned len);
int usbSerialInit(UsbSerialReadCallback* usbSerialReadCallback); // run once in main b4 main loop starts. int usbSerialInit(UsbSerialLineStateCallback* usbSerialLineStateCallback, UsbSerialReadCallback* usbSerialReadCallback); // run once in main b4 main loop starts.
/* /*
Writes one character to VCOM port Writes one character to VCOM port

18
grbl/serial.c
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@ -49,6 +49,8 @@ void serialInterrupt(uint32_t event);
void legacy_ISR(uint8_t data); void legacy_ISR(uint8_t data);
uint8_t arm_rx_buf[1]; uint8_t arm_rx_buf[1];
bool lastDtr = false;
// Returns the number of bytes available in the RX serial buffer. // Returns the number of bytes available in the RX serial buffer.
uint16_t serial_get_rx_buffer_available() uint16_t serial_get_rx_buffer_available()
{ {
@ -80,10 +82,18 @@ uint8_t serial_get_tx_buffer_count()
void serial_init() void serial_init()
{ {
#ifdef USE_USB #ifdef USE_USB
usbSerialInit([](const U8* data, unsigned len) { usbSerialInit(
while(len--) [](bool dtr, bool rts) {
legacy_ISR(*data++); if (dtr != lastDtr)
}); {
lastDtr = dtr;
mc_reset();
}
},
[](const U8* data, unsigned len) {
while (len--)
legacy_ISR(*data++);
});
#else #else
int32_t uartFlags = ARM_USART_MODE_ASYNCHRONOUS | int32_t uartFlags = ARM_USART_MODE_ASYNCHRONOUS |
ARM_USART_DATA_BITS_8 | ARM_USART_DATA_BITS_8 |