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try fix SPI driver for CMT

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Markus Krause 2023-04-27 17:52:26 +02:00 committed by Thomas Basler
parent 14f9d1b3c6
commit a37b394139
1 changed files with 13 additions and 9 deletions
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22
lib/CMT2300a/cmt_spi3.c
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@ -32,10 +32,12 @@ void cmt_spi3_init(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fc
.max_transfer_sz = 32, .max_transfer_sz = 32,
}; };
spi_device_interface_config_t devcfg = { spi_device_interface_config_t devcfg = {
.command_bits = 0, .command_bits = 1,
.address_bits = 0, .address_bits = 7,
.dummy_bits = 0, .dummy_bits = 0,
.mode = 0, // SPI mode 0 .mode = 0, // SPI mode 0
.cs_ena_pretrans = 1,
.cs_ena_posttrans = 1,
.clock_speed_hz = spi_speed, .clock_speed_hz = spi_speed,
.spics_io_num = pin_cs, .spics_io_num = pin_cs,
.flags = SPI_DEVICE_HALFDUPLEX | SPI_DEVICE_3WIRE, .flags = SPI_DEVICE_HALFDUPLEX | SPI_DEVICE_3WIRE,
@ -70,11 +72,12 @@ void cmt_spi3_init(int8_t pin_sdio, int8_t pin_clk, int8_t pin_cs, int8_t pin_fc
void cmt_spi3_write(uint8_t addr, uint8_t dat) void cmt_spi3_write(uint8_t addr, uint8_t dat)
{ {
uint8_t tx_data[2]; uint8_t tx_data;
tx_data[0] = ~addr; tx_data = ~dat;
tx_data[1] = ~dat;
spi_transaction_t t = { spi_transaction_t t = {
.length = 2 * 8, .cmd = 1,
.addr = ~addr,
.length = 8,
.tx_buffer = &tx_data, .tx_buffer = &tx_data,
.rx_buffer = NULL .rx_buffer = NULL
}; };
@ -86,12 +89,13 @@ void cmt_spi3_write(uint8_t addr, uint8_t dat)
uint8_t cmt_spi3_read(uint8_t addr) uint8_t cmt_spi3_read(uint8_t addr)
{ {
uint8_t tx_data, rx_data; uint8_t rx_data;
tx_data = ~(addr | 0x80); // negation and MSB high (read command)
spi_transaction_t t = { spi_transaction_t t = {
.cmd = 0,
.addr = ~addr,
.length = 8, .length = 8,
.rxlength = 8, .rxlength = 8,
.tx_buffer = &tx_data, .tx_buffer = NULL,
.rx_buffer = &rx_data .rx_buffer = &rx_data
}; };
SPI_PARAM_LOCK(); SPI_PARAM_LOCK();