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cvargcal
Joined: 17 Feb 2015
Posts: 134
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| Send ascii as keyboard |
 Posted: Thu Oct 04, 2018 3:37 pm |
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Hi, I have one buffer with this data "04C65D12FF3880CA".
But alway send 04c65d12f380ca, not send complete the array.
| Code: | // convert ascii character to USB HID Keyboard scancode.
// realize that there is no difference between 'A'/'a' or '1'/'!', they
// have the same scancode. in order to differentiate between these the SHIFT
// modifier has to be set (see kb_modifier_t).
// see kb_scancode_t for other scancodes that are not ascii.
// bit8 will be set if shift needs to be set (for upper case chars or '!' vs '1')
unsigned int16 ToHidKeyboardScancode(char c)
{
unsigned int16 shift = 0;
if ((c>='A')&&(c<='Z'))
{
c = tolower(c);
shift = 0x100;
}
if ((c>='a')&&(c<='z'))
{
return(((c-='a')+4)|shift);
}
if ((c>='1')&&(c<='9'))
{
return((c-='0')+0x1D);
}
switch(c)
{
case '!': return(0x11E);
case '@': return(0x11F);
case '#': return(0x120);
case '$': return(0x121);
case '%': return(0x122);
case '^': return(0x123);
case '&': return(0x124);
case '*': return(0x125);
case '(': return(0x126);
case ')': return(0x127);
case '0': return(0x27);
case '\n': return(0x28); //enter
case '\r': return(0x28); //enter
case '\b': return(0x2A); //backspace
case '\t': return(0x2B); //tab
case ' ': return(0x2C); //space
case '_': return(0x12D);
case '-': return(0x2D);
case '+': return(0x12E);
case '=': return(0x2E);
case '{': return(0x12F);
case '[': return(0x2F);
case '}': return(0x130);
case ']': return(0x30);
case '|': return(0x131);
case '\\': return(0x31);
case ':': return(0x133);
case ';': return(0x33);
case '"': return(0x134);
case '\'': return(0x34);
case '~': return(0x135);
case '`': return(0x35);
case '<': return(0x136);
case ',': return(0x36);
case '>': return(0x137);
case '.': return(0x37);
case '?': return(0x138);
case '/': return(0x38);
}
}
void usb_keyboard_task(void) {
static int8 tx_msg[7]={0,0,0,0,0,0,0};
unsigned int8 leds;
unsigned int16 scancode;
if ( messageReady){ // I have full the array "04C65D12FF3880CA"
scancode = ToHidKeyboardScancode(moduleResonseBuffer[i++]);
//if(bit_test(scancode, 8)) tx_msg[0] = KB_MODIFIER_LEFT_SHIFT;
tx_msg[2] = scancode;
usb_put_packet(2,tx_msg,sizeof(tx_msg),USB_DTS_TOGGLE);
}
else{
tx_msg[2]=0;
usb_put_packet(2,tx_msg,sizeof(tx_msg),USB_DTS_TOGGLE);
if (moduleResonseBuffer[i]==0x00 ) {
i=0;
messageReady=0;
output_high(LED_CMD); delay_ms(300); output_low(LED_CMD);
}
//receive NUM LOCK, CAPS LOCK, etc LED status from PC. e won't do anything with it.
if (usb_kbhit(2)) usb_get_packet(2, &leds, 1);
} |
What happened, work fine but not send all characters.
04C65D12FF3880CA
04c65d12ff3880ca
I see... no send when the "asccii" is repeated... |
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temtronic
Joined: 01 Jul 2010
Posts: 9245
Location: Greensville,Ontario
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| Posted: Thu Oct 04, 2018 5:25 pm |
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1) This is not a complete PIC program so I can't see important details like 'fuses'...
2) What is the receiving device ? A PC ? If so, what program is receiving the PIC's data stream ? If I assume a 'terminal program', like RealTerm, perhaps it's not configured properly or the PC is doing 'other stuff'.
Jay |
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cvargcal
Joined: 17 Feb 2015
Posts: 134
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| Posted: Thu Oct 04, 2018 5:55 pm |
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I have the soluction... I have send 0 after every press...
Thanks
Its very slow... How I can do more faster? |
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temtronic
Joined: 01 Jul 2010
Posts: 9245
Location: Greensville,Ontario
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| Posted: Fri Oct 05, 2018 2:43 pm |
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You'd have to show us the whole program not just bits of it. You do show a delay_ms(300); though. THAT would slow it down !
If I'm reading the post correctly, you have a PC keyboard connected to a PIC that then sends the key presses via USB to a PC. If so, it should be FAST ! I did similar project 20 years ago with a 16C84 running at 4MHz. |
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