Johannes Stratmann
/
wsDrive
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Revision 6:270a9728ee29, committed 2016-12-10
- Comitter:
- JojoS
- Date:
- Sat Dec 10 14:30:38 2016 +0000
- Parent:
- 5:360f5e63b104
- Commit message:
- support for STM32F4
Changed in this revision
| BurstSPI.lib | Show annotated file Show diff for this revision Revisions of this file |
| wsDrive.cpp | Show annotated file Show diff for this revision Revisions of this file |
--- a/BurstSPI.lib Sun Oct 09 16:53:55 2016 +0000 +++ b/BurstSPI.lib Sat Dec 10 14:30:38 2016 +0000 @@ -1,1 +1,1 @@ -https://developer.mbed.org/users/JojoS/code/BurstSPI/#83e3b8ba3f43 +https://developer.mbed.org/users/JojoS/code/BurstSPI/#8241b7d84ad2
--- a/wsDrive.cpp Sun Oct 09 16:53:55 2016 +0000
+++ b/wsDrive.cpp Sat Dec 10 14:30:38 2016 +0000
@@ -2,9 +2,13 @@
wsDrive::wsDrive(PinName mosi, PinName miso, PinName clk) : BurstSPI(mosi,miso,clk)
{
+#if defined(TARGET_STM32F4)
+ frequency(4000000);
+ format(4*4, 1); // one WS bit -> four SPI bits
+#else
frequency(2400000);
- format(12, 1);
- //setFormat();
+ format(3*4, 1); // one WS bit -> three SPI bits
+#endif
pixArray = NULL;
pixArray16 = NULL;
@@ -42,10 +46,20 @@
// each bytes sent as two 12 bit messages (3 bits of data per LED bit).
void wsDrive::sendByte(unsigned char value)
{
+ uint16_t dataToSend = 0;
+ uint8_t mask = 0x80;
- uint16_t dataToSend = 0;
-
- uint8_t mask = 0x80;
+#if defined(TARGET_STM32F4)
+ while (mask) {
+ dataToSend += (value & mask)?0x0C:0x08; // 1000 for a 0 or 1100 for a 1
+ if (mask & 0x11) { // trans
+ fastWrite(dataToSend);
+ dataToSend = 0;
+ }
+ dataToSend = dataToSend << 4;
+ mask = mask >> 1;
+ }
+#else
while (mask) {
dataToSend += (value & mask)?0x06:0x4; // 100 for a 0 or 110 for a 1
if (mask & 0x11) { // trans
@@ -55,6 +69,7 @@
dataToSend = dataToSend << 3;
mask = mask >> 1;
}
+#endif
}
void wsDrive::sendPixel(pixelInfo *pixToSend)