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allow 1, 2, 3 or 4 bytes in shift out

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openshwprojects
2023-04-09 08:24:38 +02:00
parent fecb895612
commit aee5dbf99d
2 changed files with 9 additions and 8 deletions
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9
src/driver/drv_max72xx_internal.c
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@@ -32,15 +32,16 @@
#define MAX72XX_DELAY
// #define MAX72XX_DELAY usleep(123);
void PORT_shiftOut(int dataPin, int clockPin, int bitOrder, int val)
void PORT_shiftOut(int dataPin, int clockPin, int bitOrder, int val, int totalBytes)
{
int i;
int totalBits = totalBytes * 8;
for (i = 0; i < 8; i++) {
for (i = 0; i < totalBits; i++) {
if (bitOrder == LSBFIRST)
HAL_PIN_SetOutputValue(dataPin, !!(val & (1 << i)));
else
HAL_PIN_SetOutputValue(dataPin, !!(val & (1 << (7 - i))));
HAL_PIN_SetOutputValue(dataPin, !!(val & (1 << ((totalBits - 1) - i))));
MAX72XX_DELAY
HAL_PIN_SetOutputValue(clockPin, HIGH);
@@ -64,7 +65,7 @@ void MAX72XX_spiTransfer(max72XX_t *led, int adddr, unsigned char opcode, byte d
HAL_PIN_SetOutputValue(led->port_cs, LOW);
MAX72XX_DELAY
for (i = maxbytes; i > 0; i--)
PORT_shiftOut(led->port_mosi, led->port_clk, MSBFIRST, led->spidata[i - 1]);
PORT_shiftOut(led->port_mosi, led->port_clk, MSBFIRST, led->spidata[i - 1], 1);
MAX72XX_DELAY
HAL_PIN_SetOutputValue(led->port_cs, HIGH);
}

8
src/driver/drv_shiftRegister.c
View File

@@ -58,11 +58,11 @@ void Shift_Init() {
HAL_PIN_Setup_Output(g_clk);
}
void PORT_shiftOut(int dataPin, int clockPin, int bitOrder, int val);
void PORT_shiftOut(int dataPin, int clockPin, int bitOrder, int val, int totalRegisters);
void PORT_shiftOutLatch(int dataPin, int clockPin, int latchPin, int bitOrder, int val) {
void PORT_shiftOutLatch(int dataPin, int clockPin, int latchPin, int bitOrder, int val, int totalRegisters) {
HAL_PIN_SetOutputValue(latchPin, 0);
PORT_shiftOut(dataPin, clockPin, bitOrder, val);
PORT_shiftOut(dataPin, clockPin, bitOrder, val, totalRegisters);
HAL_PIN_SetOutputValue(latchPin, 1);
}
@@ -90,7 +90,7 @@ void Shift_OnChannelChanged(int ch, int value) {
BIT_CLEAR(g_currentValue, ch);
}
addLogAdv(LOG_INFO, LOG_FEATURE_MAIN, "Will send value %i", g_currentValue);
PORT_shiftOutLatch(g_data, g_clk, g_latch, g_order, g_currentValue);
PORT_shiftOutLatch(g_data, g_clk, g_latch, g_order, g_currentValue, g_totalRegisters);
}