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LPC: Finish DMA transfer, use HW SPI class (#19191)

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This commit is contained in:
Victor Oliveira
2020-09-10 02:41:26 -03:00
committed by GitHub
parent b98946b5c1
commit 160f70be63
6 changed files with 61 additions and 91 deletions
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22
Marlin/src/HAL/LPC1768/include/SPI.h
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@ -61,7 +61,9 @@
class SPISettings {
public:
SPISettings(uint32_t speed, int, int) : spi_speed(speed) {};
SPISettings(uint32_t spiRate, int inBitOrder, int inDataMode) {
init_AlwaysInline(spiRate2Clock(spiRate), inBitOrder, inDataMode, DATA_SIZE_8BIT);
}
SPISettings(uint32_t inClock, uint8_t inBitOrder, uint8_t inDataMode, uint32_t inDataSize) {
if (__builtin_constant_p(inClock))
init_AlwaysInline(inClock, inBitOrder, inDataMode, inDataSize);
@ -72,7 +74,19 @@ public:
init_AlwaysInline(4000000, MSBFIRST, SPI_MODE0, DATA_SIZE_8BIT);
}
uint32_t spiRate() const { return spi_speed; }
//uint32_t spiRate() const { return spi_speed; }
static inline uint32_t spiRate2Clock(uint32_t spiRate) {
uint32_t Marlin_speed[7]; // CPSR is always 2
Marlin_speed[0] = 8333333; //(SCR: 2) desired: 8,000,000 actual: 8,333,333 +4.2% SPI_FULL_SPEED
Marlin_speed[1] = 4166667; //(SCR: 5) desired: 4,000,000 actual: 4,166,667 +4.2% SPI_HALF_SPEED
Marlin_speed[2] = 2083333; //(SCR: 11) desired: 2,000,000 actual: 2,083,333 +4.2% SPI_QUARTER_SPEED
Marlin_speed[3] = 1000000; //(SCR: 24) desired: 1,000,000 actual: 1,000,000 SPI_EIGHTH_SPEED
Marlin_speed[4] = 500000; //(SCR: 49) desired: 500,000 actual: 500,000 SPI_SPEED_5
Marlin_speed[5] = 250000; //(SCR: 99) desired: 250,000 actual: 250,000 SPI_SPEED_6
Marlin_speed[6] = 125000; //(SCR:199) desired: 125,000 actual: 125,000 Default from HAL.h
return Marlin_speed[spiRate > 6 ? 6 : spiRate];
}
private:
void init_MightInline(uint32_t inClock, uint8_t inBitOrder, uint8_t inDataMode, uint32_t inDataSize) {
@ -85,7 +99,7 @@ private:
dataSize = inDataSize;
}
uint32_t spi_speed;
//uint32_t spi_speed;
uint32_t clock;
uint32_t dataSize;
//uint32_t clockDivider;
@ -122,7 +136,7 @@ public:
void end();
void beginTransaction(const SPISettings&);
void endTransaction() {};
void endTransaction() {}
// Transfer using 1 "Data Size"
uint8_t transfer(uint16_t data);