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Support FYSETC_MINI_12864 on Re-ARM, RAMPS_FD, MKS SBASE (#13717)

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This commit is contained in:
Bob Kuhn
2019-04-15 22:54:11 -05:00
committed by Scott Lahteine
parent 9992c424f5
commit 9b578ca343
6 changed files with 140 additions and 23 deletions
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68
Marlin/src/HAL/HAL_LPC1768/u8g/u8g_com_HAL_LPC1768_sw_spi.cpp
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@ -65,10 +65,76 @@
#undef SPI_SPEED
#define SPI_SPEED 2 // About 2 MHz
#include <algorithm>
#include <LPC17xx.h>
#include <gpio.h>
#include <Arduino.h>
uint8_t swSpiTransfer_mode_0(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
for (uint8_t i = 0; i < 8; i++) {
if (spi_speed == 0) {
gpio_set(mosi_pin, !!(b & 0x80));
gpio_set(sck_pin, HIGH);
b <<= 1;
if (miso_pin >= 0 && gpio_get(miso_pin)) b |= 1;
gpio_set(sck_pin, LOW);
}
else {
const uint8_t state = (b & 0x80) ? HIGH : LOW;
for (uint8_t j = 0; j < spi_speed; j++)
gpio_set(mosi_pin, state);
for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++)
gpio_set(sck_pin, HIGH);
b <<= 1;
if (miso_pin >= 0 && gpio_get(miso_pin)) b |= 1;
for (uint8_t j = 0; j < spi_speed; j++)
gpio_set(sck_pin, LOW);
}
}
return b;
}
uint8_t swSpiTransfer_mode_3(uint8_t b, const uint8_t spi_speed, const pin_t sck_pin, const pin_t miso_pin, const pin_t mosi_pin ) {
for (uint8_t i = 0; i < 8; i++) {
const uint8_t state = (b & 0x80) ? HIGH : LOW;
if (spi_speed == 0) {
gpio_set(sck_pin, LOW);
gpio_set(mosi_pin, state);
gpio_set(mosi_pin, state); // need some setup time
gpio_set(sck_pin, HIGH);
}
else {
for (uint8_t j = 0; j < spi_speed + (miso_pin >= 0 ? 0 : 1); j++)
gpio_set(sck_pin, LOW);
for (uint8_t j = 0; j < spi_speed; j++)
gpio_set(mosi_pin, state);
for (uint8_t j = 0; j < spi_speed; j++)
gpio_set(sck_pin, HIGH);
}
b <<= 1;
if (miso_pin >= 0 && gpio_get(miso_pin)) b |= 1;
}
return b;
}
static uint8_t SPI_speed = 0;
static void u8g_sw_spi_HAL_LPC1768_shift_out(uint8_t dataPin, uint8_t clockPin, uint8_t val) {
swSpiTransfer(val, SPI_speed, clockPin, -1, dataPin);
#if ENABLED(FYSETC_MINI_12864)
swSpiTransfer_mode_3(val, SPI_speed, clockPin, -1, dataPin);
#else
swSpiTransfer_mode_0(val, SPI_speed, clockPin, -1, dataPin);
#endif
}
uint8_t u8g_com_HAL_LPC1768_sw_spi_fn(u8g_t *u8g, uint8_t msg, uint8_t arg_val, void *arg_ptr) {