src/tlc59711.c

#include "tlc59711.h"
static uint32_t command = 0;
static int fd = 0;

static uint32_t CommandInit();

extern int tlc59711_init(const char *device)
{
    command = CommandInit(); // need to set modes
    spiMode modes = {
        .mode = 0,
        .bits = 8,
        .speed = 500000,
        .delay = 0};

    int fd = spi_init(&modes, device);
    return fd;
}
extern void tlc59711_send(const uint16_t data[12])
{
    uint8_t rx[24]; // throw away
   	uint8_t tx[24];

    tx[0] = command >> 24;
    tx[1] = command >> 16;
    tx[2] = command >> 8;
    tx[3] = command;
    transfer(tx,rx,4);


    // 12 channels per TLC59711
    for (int8_t c = 11; c >= 0; c--) {

        // 16 bits per channel, send MSB first
        //spiSend(data[c] >> 8);
        //spiSend(data[c]);
        tx[c << 1] = 0xFF;
    }
    transfer(tx,rx,24);
}


static uint32_t CommandInit()
{
    uint32_t commands = 0;
    commands = 0x25;
    commands <<= 5;
    commands |= 0x16;
    commands <<= 7;
    commands |= 0x7F;
    commands <<= 7;
    commands |= 0x7F;
    commands <<= 7;
    commands |= 0x7F;
    return commands;
}
Commit	Line	Data
	1	#include "tlc59711.h"
	2	static uint32_t command = 0;
	3	static int fd = 0;
	4
	5	static uint32_t CommandInit();
	6
	7	extern int tlc59711_init(const char *device)
	8	{
	9	command = CommandInit(); // need to set modes
	10	spiMode modes = {
	11	.mode = 0,
	12	.bits = 8,
	13	.speed = 500000,
	14	.delay = 0};
	15
	16	int fd = spi_init(&modes, device);
	17	return fd;
	18	}
	19	extern void tlc59711_send(const uint16_t data[12])
	20	{
	21	uint8_t rx[24]; // throw away
	22	uint8_t tx[24];
	23
	24	tx[0] = command >> 24;
	25	tx[1] = command >> 16;
	26	tx[2] = command >> 8;
	27	tx[3] = command;
	28	transfer(tx,rx,4);
	29
	30
	31	// 12 channels per TLC59711
	32	for (int8_t c = 11; c >= 0; c--) {
	33
	34	// 16 bits per channel, send MSB first
	35	//spiSend(data[c] >> 8);
	36	//spiSend(data[c]);
	37	tx[c << 1] = 0xFF;
	38	}
	39	transfer(tx,rx,24);
	40	}
	41
	42
	43	static uint32_t CommandInit()
	44	{
	45	uint32_t commands = 0;
	46	commands = 0x25;
	47	commands <<= 5;
	48	commands \|= 0x16;
	49	commands <<= 7;
	50	commands \|= 0x7F;
	51	commands <<= 7;
	52	commands \|= 0x7F;
	53	commands <<= 7;
	54	commands \|= 0x7F;
	55	return commands;
	56	}