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Add CS down/up for device type detection

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jflyper 2018-10-26 00:35:07 +09:00
parent 70723bdcfe
commit a9d6c7840b
1 changed files with 4 additions and 0 deletions
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4
src/main/drivers/max7456.c
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@ -435,6 +435,8 @@ bool max7456Init(const max7456Config_t *max7456Config, const vcdProfile_t *pVcdP
// Do this at half the speed for safety. // Do this at half the speed for safety.
spiSetDivisor(busdev->busdev_u.spi.instance, MAX7456_SPI_CLK * 2); spiSetDivisor(busdev->busdev_u.spi.instance, MAX7456_SPI_CLK * 2);
__spiBusTransactionBegin(busdev);
max7456Send(MAX7456ADD_CMAL, (1 << 6)); // CA[8] bit max7456Send(MAX7456ADD_CMAL, (1 << 6)); // CA[8] bit
if (max7456Send(MAX7456ADD_CMAL|MAX7456ADD_READ, 0xff) & (1 << 6)) { if (max7456Send(MAX7456ADD_CMAL|MAX7456ADD_READ, 0xff) & (1 << 6)) {
@ -443,6 +445,8 @@ bool max7456Init(const max7456Config_t *max7456Config, const vcdProfile_t *pVcdP
max7456DeviceType = MAX7456_DEVICE_TYPE_MAX; max7456DeviceType = MAX7456_DEVICE_TYPE_MAX;
} }
__spiBusTransactionEnd(busdev);
#if defined(USE_OVERCLOCK) #if defined(USE_OVERCLOCK)
// Determine SPI clock divisor based on config and the device type. // Determine SPI clock divisor based on config and the device type.