MPCNC/Firmware2
1
0
Fork 0
Code Issues 1 Pull Requests Releases Wiki Activity

Merge pull request #10195 from Bob-the-Kuhn/DUE-hw-SPI-to-mode-0

Browse Source 
[2.0.x] DUE - change hardware SPI to mode 0change to mode 0
This commit is contained in:
Bob-the-Kuhn 2018-03-23 09:46:26 -05:00 committed by GitHub
commit 81d68b2180
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Marlin/src/HAL/HAL_DUE/HAL_spi_Due.cpp
View File

@ -825,6 +825,11 @@
#else // U8G compatible hardware SPI
#define SPI_MODE_0_DUE_HW 2 // DUE CPHA control bit is inverted
#define SPI_MODE_1_DUE_HW 3
#define SPI_MODE_2_DUE_HW 0
#define SPI_MODE_3_DUE_HW 1
void spiInit(uint8_t spiRate = 6 ) { // default to slowest rate if not specified)
// 8.4 MHz, 4 MHz, 2 MHz, 1 MHz, 0.5 MHz, 0.329 MHz, 0.329 MHz
int spiDueDividors[] = { 10, 21, 42, 84, 168, 255, 255 };
@ -848,7 +853,7 @@
SPI0->SPI_MR = SPI_MR_MSTR | SPI_MR_PCSDEC | SPI_MR_MODFDIS;
/* SPI mode 0, 8 Bit data transfer, baud rate */
SPI0->SPI_CSR[0] = SPI_CSR_SCBR(spiDueDividors[spiRate]) | 1;
SPI0->SPI_CSR[0] = SPI_CSR_SCBR(spiDueDividors[spiRate]) | SPI_MODE_0_DUE_HW;
}
static uint8_t spiTransfer(uint8_t data) {